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WoS SCOPUS Document Type Document Title Abstract Authors Affiliation ResearcherID (WoS) AuthorsID (SCOPUS) Author Email(s) Journal Name JCR Abbreviation ISSN eISSN Volume Issue WoS Edition WoS Category JCR Year IF JCR (%) FWCI ⓘ FWCI Update Date WoS Citation SCOPUS Citation Keywords (WoS) KeywordsPlus (WoS) Keywords (SCOPUS) KeywordsPlus (SCOPUS) Language Publication Stage Publication Year Publication Date DOI JCR Link DOI Link WOS Link SCOPUS Link
○ ○ Article ⓘ Self-Assembled Artificial Nanocilia Actuators ⓘ Self-assembly of nanoparticles (NPs) is a powerful route to constructing higher-order structures. However, the programmed self-assembly of NPs into non-close-packed, 3D, shape-morphing nanocilia arrays remains elusive, whereas dynamically actuated nanometer cilia are universal in living systems. Here, a programmable self-assembly strategy is presented that can direct magnetic NPs into a highly ordered responsive artificial nanocilia actuator with exquisite nanometer 3D structural arrangements. The self-assembled artificial NP cilia can maintain their structural integrity through the interplay of interparticle interactions. Interestingly, the nanocilia can exhibit a field-responsive actuation motion through "rolling and sliding" between assembled NPs rather than bending the entire ciliary beam. It is demonstrated that oleic acid coated over the NPs acts as a lubricating bearing and enables the rolling/sliding-based actuation of the cilia. ⓘ Kang, Minsu; Seong, Minho; Lee, Donghyuk; Kang, Seong Min; Kwak, Moon Kyu; Jeong, Hoon Eui ⓘ Ulsan Natl Inst Sci & Technol UNIST, Dept Mech Engn, Ulsan 44919, South Korea; Chungnam Natl Univ, Dept Mech Engn, Daejeon 34134, South Korea; Kyungpook Natl Univ, Dept Mech Engn, Daegu 41566, South Korea ⓘ Kwak, Moon/AGQ-6058-2022 ⓘ 57190973131; 57193896851; 57678934300; 55779343100; 57203947984; 35490647000 ⓘ hoonejeong@unist.ac.kr; ⓘ ADVANCED MATERIALS ⓘ ADV MATER ⓘ 0935-9648 1521-4095 34 24 SCIE CHEMISTRY, MULTIDISCIPLINARY;CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER ⓘ 2022 29.4 2.2 2.09 2025-06-25 ⓘ 26 27 actuators; cilia; magnetic nanoparticles; nanobearings; self-assembly ⓘ SUPERSTRUCTURES; NANOPARTICLES; NANOCRYSTALS; LUBRICATION; NANOCUBES; DROPLETS ⓘ actuators; cilia; magnetic nanoparticles; nanobearings; self-assembly ⓘ Magnetics; Motion; Nanoparticles; Association reactions; Nanomagnetics; Nanoparticles; Self assembly; nanoparticle; 3-D shape; Cilium; Close packed; High-order structure; Higher-order structure; Living systems; Nanobearing; Programmable self assembly; Shape morphing; Structural arrangement; chemistry; magnetism; motion; Actuators ⓘ English 2022 2022-06 10.1002/adma.202200185 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Self-Organized Low-Power Multihop Failover Protocol for a Cellular-Based Public Safety Device Network ⓘ This study proposes a network failover protocol for public safety devices, such as fire alarms and gas leak detectors using a cellular (i.e., 5G and LTE) Internet of Things (IoT) network, and evaluates its performance through experiments. The proposed protocol recovers communication functions by establishing a detour route through the secondary network (i.e., 447-MHz narrowband wireless network) when a problem occurs in the primary network (i.e., cellular network) in a disaster situation. All operations of the proposed protocol are performed autonomously by self-organization and collaboration of distributed nodes without centralized control. Thus, the communication function is maintained until all physically configurable routes are cut without any network reconfiguration process, even under adverse conditions, where nodes and communication paths status frequently change in real time due to a disaster. In addition, this failover protocol reduces power consumption by activating the secondary network only at the moment when network failover is necessary by using the novel self-organized low-power multihop relay wake-up scheme proposed in this study. Therefore, the proposed protocol can be easily applied to IoT devices that are often operated only by batteries. The proposed protocol also has the advantage of immediate use without any modification of the current cellular IoT network. ⓘ Park, Sung Ho; Park, Yu Jin; Jeon, Yeong Jun; Kang, Soon Ju ⓘ Kyungpook Natl Univ, Ctr Self Organizing Software Platform, Daegu 41566, South Korea; Kyungpook Natl Univ, Coll IT Engn, Sch Elect Engn, Daegu 41566, South Korea ⓘ ; YeongJun, Jeon/AAA-1822-2022 ⓘ 37049190600; 55494454700; 57208863636; 55666313900 ⓘ sunghopark@knu.ac.kr;sjkang@ee.knu.ac.kr; ⓘ IEEE INTERNET OF THINGS JOURNAL ⓘ IEEE INTERNET THINGS ⓘ 2327-4662 9 19 SCIE COMPUTER SCIENCE, INFORMATION SYSTEMS;ENGINEERING, ELECTRICAL & ELECTRONIC;TELECOMMUNICATIONS ⓘ 2022 10.6 2.2 0.31 2025-06-25 ⓘ 4 4 Protocols; Cellular networks; Spread spectrum communication; Receivers; Standards; Internet of Things; Synchronization; 5G; cellular Internet of Things (IoT); failover; low-power; LTE; multihop; public safety; self-organized ⓘ LTE; 5G; IMPLEMENTATION; IOT ⓘ 5G; cellular Internet of Things (IoT); failover; low-power; LTE; multihop; public safety; self-organized ⓘ 5G mobile communication systems; Disasters; Internet protocols; Low power electronics; Spread spectrum communication; Wireless networks; 5g; Cellular internet of thing; Cellular network; Cellulars; Failover; Low Power; LTE.; Multi-hops; Public safety; Receiver; Self-organised; Spread-spectrum communication; Internet of things ⓘ English 2022 2022-10-01 10.1109/jiot.2022.3156442 ⓘ 바로가기 바로가기 바로가기 바로가기
○ Meeting Abstract ⓘ Association between the Use of Statins and Incidence of Interstitial Lung Disease/Idiopathic Pulmonary Fibrosis: A Cohort Study ⓘ ⓘ Choi, W.; Loloci, G.; Lee, D. Y.; Jeong, J. ⓘ Myongji Hosp, Goyang Si, South Korea; German Hosp, Tirana, Albania; Keimyung Univ, Daegu, South Korea; Kyungpook Univ, Daegu, South Korea ⓘ Lee, Yong Jae/GLR-4153-2022 ⓘ ⓘ ⓘ EUROPEAN RESPIRATORY JOURNAL ⓘ EUR RESPIR J ⓘ 0903-1936 1399-3003 60 SCIE RESPIRATORY SYSTEM ⓘ 2022 24.9 2.3 ⓘ 0 ⓘ ⓘ ⓘ ⓘ English 2022 2022-09-04 10.1183/13993003.congress-2022.4349 ⓘ 바로가기 바로가기 바로가기
○ ○ Editorial Material ⓘ Guest Editorial: Digital Twinning: Integrating AI-ML and Big Data Analytics for Virtual Representation ⓘ ⓘ Gao, Zhiwei; Paul, Anand; Wang, Xiaokang ⓘ Univ Northumbria, Fac Engn & Environm, Newcastle Upon Tyne NE1 8ST, Tyne & Wear, England; Kyungpook Natl Univ, Sch Comp Sci & Engn, Daegu 41566, South Korea; St Francis Xavier Univ, Dept Comp Sci, Antigonish, NS B2G 2W5, Canada ⓘ Paul, Anand/V-6724-2017; Gao, Zhiwei/AAQ-7508-2020 ⓘ 7402833355; 56650522400; 57188647079 ⓘ zhiwei.gao@northumbria.ac.uk;anand@knu.ac.kr;xkwang@stfx.ca; ⓘ IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS ⓘ IEEE T IND INFORM ⓘ 1551-3203 1941-0050 18 2 SCIE AUTOMATION & CONTROL SYSTEMS;COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS;ENGINEERING, INDUSTRIAL ⓘ 2022 12.3 2.3 0.57 2025-06-25 ⓘ 11 19 Digital twin; Informatics; Big Data; Visualization; Smart manufacturing; Real-time systems; Optimization ⓘ ⓘ ⓘ ⓘ English 2022 2022-02 10.1109/tii.2021.3104815 ⓘ 바로가기 바로가기 바로가기 바로가기
○ Meeting Abstract ⓘ Health-related quality of life and its determinants in patients with chronic cough: a case-control study ⓘ ⓘ Kang, N.; Won, H.; Lee, J.; Shim, J. S.; Kim, M.; Kang, S.; Park, H.; Jo, E. J.; Lee, S. E.; Kim, S.; Kim, S.; Chang, Y.; Lee, B.; Jo, M.; Song, W. ⓘ Sungkyunkwan Univ, Div Allergy, Dept Med, Samsung Med Ctr,Sch Med, Seoul, South Korea; Vet Hlth Serv Med Ctr, Dept Internal Med, Seoul, South Korea; Univ Ulsan, Dept Allergy & Clin Immunol, Asan Med Ctr, Coll Med, Seoul, South Korea; Ewha Womans Univ, Dept Internal Med, Coll Med, Seoul, South Korea; Gachon Univ, Dept Internal Med, Gil Med Ctr, Incheon, South Korea; Kyungpook Natl Univ, Kyungpook Natl Univ Chilgok Hosp, Sch Med, Dept Allergy & Clin Immunol, Daegu, South Korea; Pusan Natl Univ, Dept Internal Med, Sch Med, Busan, South Korea; Pusan Natl Univ, Dept Internal Med, Yangsan Hosp, Yangsan, South Korea; Hanyang Univ, Hanyang Univ Hosp, Coll Med Internal Med, Coll Med,Dept Internal Med, Seoul, South Korea; Hanyang Univ, Seoul Natl Univ Bundang Hosp Internal Med, Hanyang Univ Hosp, Dept Internal Med,Coll Med, Seongnam, South Korea; Univ Ulsan, Dept Prevent Med, Coll Med, Seoul, South Korea ⓘ Won, Ha-Kyeong/AFL-4811-2022 ⓘ ⓘ ⓘ EUROPEAN RESPIRATORY JOURNAL ⓘ EUR RESPIR J ⓘ 0903-1936 1399-3003 60 SCIE RESPIRATORY SYSTEM ⓘ 2022 24.9 2.3 ⓘ 0 Cough; Quality of life; Chronic diseases ⓘ ⓘ ⓘ ⓘ English 2022 2022-09-04 10.1183/13993003.congress-2022.218 ⓘ 바로가기 바로가기 바로가기
○ ○ Article ⓘ Time-Varying-Aware Network Traffic Prediction Via Deep Learning in IIoT ⓘ With the rise of the Industrial Internet of Things (IIoT), more and more industrial devices can be connected via the network. Data collection, processing, analysis, task execution, and other devices that can product network traffic volume are gradually being deployed to IIoT. However, under the limited spectrum resources and low-cost and low-energy production requirements of enterprises, how to ensure the interconnection and intercommunication of industrial networks while realizing the effective use of network communication resources is currently a hot topic. Among them, network traffic prediction is considered to be a very important task. The time variability and interpretability, especially the time-varying features of traffic sequences, greatly challenge this task. To address those, this article proposes a method called Flow2graph to predict network traffic in IIoT. Specifically, some key segments, i.e., shapelets are extracted from the network traffic sequence according to time-varying traffic; then uses the relationship between the traffic sequence and shapelets to convert the flow into a shapelets conversion graph; Subsequently, the graph isomorphism network are used to learn the specificity of the flow sequence from different devices, thereby to predict its traffic value for a period of time in the future; finally, we conduct extensive experiments on real data to verify the effectiveness of the proposed method. ⓘ Wang, Ranran; Zhang, Yin; Peng, Limei; Fortino, Giancarlo; Ho, Pin-Han ⓘ Univ Elect Sci & Technol China, Chengdu 610056, Peoples R China; Kyungpook Natl Univ, Sch Comp Sci & Engn, Deagu 41566, South Korea; Univ Calabria Unical, Dept Informat Modeling Elect & Syst DIMES, I-87036 Arcavacata Di Rende, CS, Italy; Univ Waterloo, Dept Elect & Comp Engn, Waterloo, ON N2L 3G1, Canada ⓘ Fortino, Giancarlo/J-2950-2017; Zhang, Yin/O-2149-2015 ⓘ 57203936745; 56298640900; 7201574271; 6602895297; 7402211578 ⓘ ran.ran.wang@ieee.org;yin.zhang.cn@ieee.org;auroraplm@knu.ac.kr;g.fortino@ieee.org;p4ho@uwaterloo.ca; ⓘ IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS ⓘ IEEE T IND INFORM ⓘ 1551-3203 1941-0050 18 11 SCIE AUTOMATION & CONTROL SYSTEMS;COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS;ENGINEERING, INDUSTRIAL ⓘ 2022 12.3 2.3 1.15 2025-06-25 ⓘ 13 15 Telecommunication traffic; Industrial Internet of Things; Time series analysis; Task analysis; Predictive models; Production; Monitoring; Graph; industrial Internet of Things (IIoT); network traffic prediction; shapelets ⓘ INDUSTRIAL INTERNET ⓘ Graph; industrial Internet of Things (IIoT); network traffic prediction; shapelets ⓘ Deep learning; Forecasting; Job analysis; Time series analysis; Graph; Industrial internet of thing; Network traffic predictions; Predictive models; Shapelets; Task analysis; Telecommunications traffic; Time varying; Time-series analysis; Internet of things ⓘ English 2022 2022-11 10.1109/tii.2022.3163558 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Construction of N-doped multichannel carbon nanofibers embedded with amorphous VS4 nanoparticles for potassium-ion batteries with ultralong-term cycling stability ⓘ Due to the low cost of potassium and its low redox potential, potassium ion batteries (KIBs) have been touted as viable candidates for large-scale energy storage devices. However, practical application of KIBs remains challenging due to a lack of suitable electrode materials capable of effectively storing large-sized K ions. The present article describes the successful preparation of a highly stable one-dimensional VS4/carbon composite comprising VS4 nanoparticles confined within N-doped multichannel carbon nanofibers (VS@NMCNF), using an electrospinning method followed by in-situ pyrolysis sulfidation, for use in KIBs. The porous structure of the carbon nanofiber is critical in allowing vanadium sulfide to have an amorphous crystal structure. Benefiting from the fast ion/electron transport, the amorphous nature of vanadium sulfide, and the structural robustness of the carbon matrix, the VS@NMCNF electrode exhibits a high reversible capacity (similar to 404.6 mAhg(-1) at 0.5 A g(-1)), superior cycling stability for 4000 cycles, and an excellent rate capability (284.8 mAhg(-1) at 2.0 A g(-1)). Additionally, the K-ion full cell composed of VS@NMCNF//Prussian blue demonstrates stable reversible capacity (233.1 mAhg(-1) at 0.1 A g(-1)) and a high-rate capability (187.9 mAhg(-1) at 2.0 A g(-1)). ⓘ Lim, Jae Bong; Kim, Myeongjin; Park, Seung-Keun ⓘ Chung Ang Univ, Dept Adv Mat Engn, 4726 Seodong Daero,Daedeok Myeon, Anseong 17546, Gyeonggi, South Korea; Kyungpook Natl Univ, Dept Hydrogen & Renewable Energy, 80 Daehakro, Daegu 41566, South Korea ⓘ ; Park, Seung-Keun/HKO-6450-2023 ⓘ 57818811600; 55541419000; 55154728200 ⓘ myeongjinkim@knu.ac.kr;skpark09@cau.ac.kr; ⓘ APPLIED SURFACE SCIENCE ⓘ APPL SURF SCI ⓘ 0169-4332 1873-5584 602 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, COATINGS & FILMS;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER ⓘ 2022 6.7 2.4 2.38 2025-06-25 ⓘ 29 30 K-ion batteries; Vanadium sulfide; Multichannel structured composite; Electrospinning; Amorphous structure ⓘ HIERARCHICAL POROUS CARBON; SODIUM-ION; V2O3 NANOPARTICLES; VANADIUM SULFIDE; ANODE MATERIAL; PERFORMANCE; CAPACITY; GRAPHENE; STORAGE; ELECTRODES ⓘ Amorphous structure; Electrospinning; K-ion batteries; Multichannel structured composite; Vanadium sulfide ⓘ Amorphous carbon; Carbon nanofibers; Crystal structure; Doping (additives); Electrodes; Electrospinning; Ions; Nanoparticles; Potassium; Redox reactions; Secondary batteries; Vanadium compounds; Amorphous structures; Carbon nanofibres; Cycling stability; Ion batteries; K-ion battery; Low-costs; Multi channel; Multichannel structured composite; N-doped; Potassium ions; Sulfur compounds ⓘ English 2022 2022-11-15 10.1016/j.apsusc.2022.154332 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Cu-Ni core-shell bimetallic cocatalyst decorated polymeric carbon nitride for highly efficient and selective methane production from photocatalytic CO2 reduction ⓘ The development of non-noble bimetallic cocatalysts for the efficient and selective CO2 photoreduction is extremely desirable yet challenging. Herein, we rationally synthesized a series of non-noble Cu-Ni bimetallic cocatalysts by varying the Cu and Ni molar ratios, and then, we decorated these cocatalysts on polymeric carbon nitride (CN) for photocatalytic CO(2 )reduction. Elemental distribution maps demonstrated that the Cu-Ni-11 bimetallic cocatalyst with a Cu:Ni molar ratio of 1:1 has a perfect core-shell configuration. Notably, this Cu-Ni-11 core-shell cocatalyst-decorated CN (Cu-Ni-11@CN) exhibited remarkable CO2 photoreduction activity for selective CH4 production, outperforming bare CN, Cu@CN, Ni@CN, and Cu-Ni-13@CN and Cu-Ni-31@CN catalysts with different metal proportions. Additionally, the Cu-Ni-11@CN catalyst was remarkably stable and durable over multiple test runs. The remarkable CO2 conversion activity and stability of the developed catalyst are predominantly due to the synergistic effect of the Cu-Ni-11 core-shell cocatalyst and CN, which affords significantly improved optical absorption, CO2 adsorption, and photoexcited charge separation. Therefore, the study results elucidate the rational design and development of non-noble bimetallic cocatalysts for photocatalytic CO2 conversion. ⓘ Lee, Dong-Eun; Moru, Satyanarayana; Bhosale, Reshma; Jo, Wan-Kuen; Tonda, Surendar ⓘ Kyungpook Natl Univ, Sch Architecture Civil Environm & Energy Engn, 80 Daehak Ro, Daegu 41566, South Korea; Kakatiya Inst Technol & Sci, Dept Phys Sci, Warangal 506015, Telangana, India; Savitribai Phule Pune Univ, Dept Environm Sci, Pune 411007, Maharashtra, India ⓘ MORU, SATYANARAYANA/AAF-3189-2021; Tonda, Surendar/AAO-3358-2020; Moru, Satyanarayana/AAF-3189-2021; Jo, Wan/AAO-5329-2020 ⓘ 56605563300; 58562229700; 37260970400; 7103322277; 56114866900 ⓘ wkjo@knu.ac.kr;surendar.t86@gmail.com; ⓘ APPLIED SURFACE SCIENCE ⓘ APPL SURF SCI ⓘ 0169-4332 1873-5584 599 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, COATINGS & FILMS;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER ⓘ 2022 6.7 2.4 2.79 2025-06-25 ⓘ 33 34 g-C3N4; Bimetallic; Non-noble cocatalyst; Core-shell structure; CO2 reduction; Solar energy conversion ⓘ REDUCED GRAPHENE OXIDE; G-C3N4 NANOSHEETS; HYBRID; PERFORMANCE; HETEROJUNCTION; CONVERSION; DIOXIDE; WATER; TIO2; H2O ⓘ Bimetallic; CO<sub>2</sub> reduction; Core–shell structure; g-C<sub>3</sub>N<sub>4</sub>; Non-noble cocatalyst; Solar energy conversion ⓘ Carbon nitride; Catalysts; Light absorption; Molar ratio; Photocatalytic activity; Shells (structures); Solar energy; Solar energy conversion; Bimetallics; CO 2 reduction; Co catalysts; Core shell; Core shell structure; G-C3N4; Non-noble cocatalyst; Photo-catalytic; Solar energy conversions; ]+ catalyst; Carbon dioxide ⓘ English 2022 2022-10-15 10.1016/j.apsusc.2022.153973 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Fe-promoted V/W/TiO2 catalysts for enhanced low-temperature denitrification efficiency ⓘ Research on low-temperature ammonia selective catalytic reduction (NH3-SCR) is being actively conducted to reduce the operating costs of environmental facilities and fulfill stringent environmental regulations. The main limitation of these catalysts is the low denitrification (DeNO(x)) efficiency of flue gas at temperatures below 200 ?. In this study, the effect of Fe doping on the low-temperature SCR activity of V/W/TiO2 catalysts was investigated. The addition of 0.5 wt% Fe to V/W/TiO2 catalysts resulted in excellent DeNO(x) efficiency (84%) at 180 ?. The presence of Fe as a structural and electronic promoter in the V/W/TiO2 catalyst increased the dispersion of W5+, Fe3+, and non-stoichiometric V4+ species and improved the redox properties of the catalyst. In addition, the DeNO(x) efficiency of low-temperature NH3-SCR was greatly affected by the adsorption capacity of the NH3-Lewis acid sites and the reoxidation ability of the V/W-0.5Fe/TiO2 catalyst. ⓘ Kim, Jeongtak; Won, Jong Min; Jeong, Soon Kwan; Yu, Kwangsun; Shin, Kyuchul; Hwang, Sun-Mi ⓘ Korea Inst Energy Res KIER, Fine Dust Res Dept, 152 Gajeongro, Daejeon 34129, South Korea; Kyungpook Natl Univ, Dept Appl Chem, Daegu 41566, South Korea ⓘ ; Hwang, Sun-Mi/LBH-0692-2024 ⓘ 57204511907; 55790977200; 23970861300; 57817776100; 14030501800; 25928373000 ⓘ kyuchul.shin@knu.ac.kr;smhwang@kier.re.kr; ⓘ APPLIED SURFACE SCIENCE ⓘ APPL SURF SCI ⓘ 0169-4332 1873-5584 601 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, COATINGS & FILMS;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER ⓘ 2022 6.7 2.4 1.94 2025-06-25 ⓘ 22 23 Low-temperature NH3-SCR; V-based catalyst; Fe promoter; VOx structure ⓘ NH3-SCR REACTION; OXIDE CATALYSTS; V2O5-WO3/TIO2 CATALYST; V2O5/TIO2 CATALYSTS; REDUCTION; NOX; NH3; PERFORMANCE; SCR; OXIDATION ⓘ Fe promoter; Low-temperature NH<sub>3</sub>-SCR; V-based catalyst; VO<sub>x</sub> structure ⓘ Ammonia; Catalyst activity; Denitrification; Efficiency; Environmental regulations; Iron; Nitrogen removal; Operating costs; Selective catalytic reduction; Denitrification efficiencies; DeNO x; Fe doping; Fe promoter; Low-temperature NH3-SCR; Lows-temperatures; Stringents; V-based catalyst; VOx structure; ]+ catalyst; Temperature ⓘ English 2022 2022-11-01 10.1016/j.apsusc.2022.154290 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Laser-Induced fluorinated graphene for superhydrophobic surfaces with anisotropic wetting and switchable adhesion ⓘ We present a facile direct-write approach for patterning fluorine-doped nanocarbons directly on molecularly engineered polymers for superhydrophobic and parahydrophobic surfaces. We first synthesized two different polymer films, non-fluorinated and fluorinated polyimides (PIs), by two-step procedure to create poly(amic acid) precursors, followed by thermal curing. Morphology and chemical composition were controlled by adjusting the programmed scan line pitch from 101.6 to 508 mu m during lasing to achieve superhydrophobicity with a water contact angle (CA) up to 156 degrees in the direction perpendicular to carbonized lines. Droplets exhibited strong adhesion on our porous graphene micropatterns even when held at vertical and inverted orientations, indicating a Cassie impregnating state of wetting. Parahydrophobic F-LINC with line pitch of 355.6 mu m exhibits high dynamic CAs along both perpendicular (theta(A perpendicular to) = 165 degrees, theta(R perpendicular to) = 127 degrees) and parallel directions (theta(A parallel to) = 147 degrees, theta(R parallel to) = 87 degrees) as well as highly anisotropic CA hysteresis (Delta theta(perpendicular to) = 38 degrees, Delta theta(parallel to) = 60 degrees). Moreover, we demonstrate strain-induced switchable adhesion by leveraging substrate curvature control. Further, we show that our micropatterned polymer films can be used for transferring droplets without any loss or contamination. Hence, our approach offers new insights into designing interfaces for droplet manipulation, pick-and-place applications, and localized control of reactions. ⓘ Nam, Ki-Ho; Abdulhafez, Moataz; Tomaraei, Golnaz Najaf; Bedewy, Mostafa ⓘ Univ Pittsburgh, Dept Ind Engn, 3700 OHara St, Pittsburgh, PA 15261 USA; Kyungpook Natl Univ, Dept Text Syst Engn, Daegu 41566, South Korea; Univ Pittsburgh, Dept Chem & Petr Engn, 3700 OHara St, Pittsburgh, PA 15261 USA; Univ Pittsburgh, Dept Mech Engn & Mat Sci, 3700 OHara St, Pittsburgh, PA 15261 USA ⓘ Bedewy, Mostafa/A-9089-2010 ⓘ 55553181500; 57204243244; 57194267119; 35222937800 ⓘ mbedewy@pitt.edu; ⓘ APPLIED SURFACE SCIENCE ⓘ APPL SURF SCI ⓘ 0169-4332 1873-5584 574 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, COATINGS & FILMS;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER ⓘ 2022 6.7 2.4 2.45 2025-06-25 ⓘ 27 29 Laser-induced graphene; Nanocarbons; Micropatterning; Fluorinated polyimide; Heteroatom self-doping; Anisotropic wettability; Superhydrophobic surface; Parahydrophobicity; Droplet adhesion ⓘ LENGTH SCALES; TOPOGRAPHY; ELECTRODES; MIMICKING; SENSOR ⓘ Anisotropic wettability; Droplet adhesion; Fluorinated polyimide; Heteroatom self-doping; Laser-induced graphene; Micropatterning; Nanocarbons; Parahydrophobicity; Superhydrophobic surface ⓘ Adhesion; Anisotropy; Contact angle; Graphene; Hydrophobicity; Morphology; Polyimides; Polymer films; Semiconducting films; Semiconductor doping; Surface morphology; Surface properties; Wetting; Anisotropic wettabilities; Droplet adhesion; Fluorinated polyimides; Heteroatom self-doping; Heteroatoms; Laser induced; Laser-induced graphene; Micro patterning; Nanocarbons; Parahydrophobicity; Self-doping; Super-hydrophobic surfaces; Drops ⓘ English 2022 2022-02-01 10.1016/j.apsusc.2021.151339 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Newly designed surface control using Si addition in trace quantity for Zn-2Al-3Mg alloy coated steel sheet with improved corrosion resistance ⓘ The addition of Si even in trace quantity (0.04 wt%) refined the spangle structure in the outermost part of a Zn-2Al-3Mg coating by precipitating Mg2Si and Zn-Al intermetallic phases on the ternary eutectic areas. In contrast to the conventional interface control of the Zn-Al-Mg-Si coating, this surface-controlled technique is a breakthrough in that it suppresses localized corrosion in the ternary eutectic areas of the outer surface by making minimal use of Si. Moreover, the surface coverage by corrosion products with a bi-layer structure and inhibiting property, following the rapid sacrificial dissolution of intermetallic phases, provided long-term corrosion resistance of steel. ⓘ Lee, Jae-Won; Son, Injoon; Kim, Sung Jin ⓘ Kyungpook Natl Univ, Dept Mat Sci & Met Engn, Daegu 41566, Kyungpook, South Korea; Sunchon Natl Univ, Dept Adv Mat & Met Engn, Sunchon 540742, Jeonnam, South Korea ⓘ ⓘ 57196137707; 9942975800; 57207864597 ⓘ ijson@knu.ac.kr;sjkim56@scnu.ac.kr; ⓘ APPLIED SURFACE SCIENCE ⓘ APPL SURF SCI ⓘ 0169-4332 1873-5584 598 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, COATINGS & FILMS;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER ⓘ 2022 6.7 2.4 1.86 2025-06-25 ⓘ 23 22 Hot-dip galvanized steel; Zn-Al-Mg alloy coatings; Silicon; Mg2Si; Corrosion; Scanning electron microscopy ⓘ AL-MG COATINGS; ZN-MG; MICROSTRUCTURE; ZINC; INHIBITION; ACID; MECHANISMS; PRODUCTS; EIS ⓘ Corrosion; Hot-dip galvanized steel; Mg<sub>2</sub>Si; Scanning electron microscopy; Silicon; Zn-Al-Mg alloy coatings ⓘ Aluminum alloys; Aluminum coated steel; Aluminum coatings; Aluminum corrosion; Binary alloys; Corrosion resistance; Corrosion resistant alloys; Corrosion resistant coatings; Eutectics; Galvanizing; Intermetallics; Localized corrosion; Magnesium alloys; Silicon alloys; Steel corrosion; Ternary alloys; Zinc alloys; Al-Mg-Si; Coated steel; Hot dip galvanized steels; Interface control; Intermetallic-phases; Localized corrosion; Si addition; Surface controls; Ternary eutectics; Zn-al-mg alloy coating; Scanning electron microscopy ⓘ English 2022 2022-10-01 10.1016/j.apsusc.2022.153868 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Oxidative decomposition with PEG-MnO2 catalyst for removal of formaldehyde: Chemical aspects on HCHO oxidation mechanism ⓘ Formaldehyde (HCHO) is a representative indoor pollutant that can adversely affect human health, and research on HCHO removal at room temperature is actively needed. In this study, a carbon-based material, Polyethylene glycol #20000(PEG #20000), is used to prepare PEG-MnO2 by doping on MnO2. Glucose-doped MnO2 (G-MnO2) and birnessite-doped MnO2 (delta-MnO2) are utilized to compare removal efficiencies with PEG-MnO2. The efficiency of PEGMnO(2) is measured to be 96.8 % under the conditions of 60 % relative humidity and GHSV of 240 L.gcat(-1).h(-1). In addition, PEG-MnO2 catalysts demonstrated longer stability by maintaining a constant efficiency for 720 min. The superior performance of PEG-MnO2 is due to the formation of oxygen vacancies after PEG-doping which promote the oxidation of HCHO. Therefore, PEG-MnO2 is expected to attract attention as a catalyst for HCHO removal at room temperature because it is easy to synthesize and has superb catalytic performance. ⓘ Do, Seong-Bin; Lee, Sung-Eun; Kim, Tae-Oh ⓘ Kumoh Natl Inst Technol, Dept Environm Engn, Gumi 39177, South Korea; Kumoh Natl Inst Technol, Dept Energy Engn Convergence, Gumi 39177, South Korea; Kyungpook Natl Univ, Dept Appl Biosci, Daegu 41566, South Korea; Kyungpook Natl Univ, Dept Integrat Biol, Daegu 41566, South Korea ⓘ Kim, Hyung/J-5451-2012 ⓘ 57435267100; 55890041600; 9335312200 ⓘ tokim@kumoh.ac.kr; ⓘ APPLIED SURFACE SCIENCE ⓘ APPL SURF SCI ⓘ 0169-4332 1873-5584 598 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, COATINGS & FILMS;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER ⓘ 2022 6.7 2.4 1.27 2025-06-25 ⓘ 15 15 Catalyst; Manganese oxide; Polyethylene glycol; Formaldehyde removal; Oxygen vacancy ⓘ BIRNESSITE-TYPE MNO2; MANGANESE OXIDE; ACTIVATED CARBON; FTIR; ADSORPTION; METHANOL; ETHANOL; SURFACE; NANOSTRUCTURE; SPECTROSCOPY ⓘ Catalyst; Formaldehyde removal; Manganese oxide; Oxygen vacancy; Polyethylene glycol ⓘ Catalysts; Efficiency; Formaldehyde; Oxygen vacancies; Polyethylene glycols; Polyethylenes; A-carbon; Birnessite; Carbon based materials; Chemical aspects; Formaldehyde removals; Human health; Indoor pollutants; Oxidation mechanisms; Oxidative decomposition; ]+ catalyst; Manganese oxide ⓘ English 2022 2022-10-01 10.1016/j.apsusc.2022.153773 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Performance assessment and optimization of forward osmosis-low pressure ultrafiltration hybrid system using machine learning for rhodamine B removal ⓘ Here, an in-series forward osmosis-low pressure ultrafiltration membrane system was devised for water treat-ment. Response surface methodology (RSM) and artificial neural network (ANN) machine learning techniques were applied to evaluate this system's performance and optimization with respect to water flux and rhodamine B (RhB) removal. The effects of initial feed solution (FS) concentration, draw solution (DS) concentration, initial feed pH, and natural organic matter (NOM) concentrate were examined using a central composite design. Models developed using RSM and ANN could successfully fit and predict the data with > 99.5 % accuracy. DS and FS concentrations were the most influential factors on water flux and RhB removal, respectively. Statistical parameters demonstrated that ANN approach (water flux = 98.46 % and RhB removal = 99.85 %) was more reliable than RSM; it also better predicted system performance (water flux = 95.06 %; RhB removal = 97.01 %). The predicted optimum conditions for water flux and RhB removal were FS concentration = 47.01 mg L-1, DS concentration = 4.91 M, initial pH = 10.99, and NOM concentration = 7.97 mg L-1. Under these conditions, RSM and ANN models predicted water fluxes of 16.37 L m(-2) h(-1) and 16.38 L m(-2) h(-1), respectively, and RhB removal of 99.99 % and 99.95 %, respectively. ⓘ Nam, Seong-Nam; Kim, Sewoon; Her, Namguk; Choong, Choe Earn; Jang, Min; Park, Chang Min; Heo, Jiyong; Yoon, Yeomin ⓘ Univ South Carolina, Dept Civil & Environm Engn, 300 Main St, Columbia, SC 29208 USA; Univ Iowa, Dept Civil & Environm Engn, Iowa City, IA 52242 USA; Gwangju Inst Sci & Technol GIST, Int Environm Res Inst, 123 Cheomdangwagi Ro, Gwangju 61005, South Korea; Kwangwoon Univ, Dept Environm Engn, 20 Kwangwoon Ro, Seoul 01897, South Korea; Kyungpook Natl Univ, Dept Environm Engn, 80 Daehak Ro, Daegu 41566, South Korea; Korea Army Acad Yeongcheon, Mil Environm Res Ctr, 495 Hoguk Ro, Yeongcheon Si 38900, Gyeongsangbug D, South Korea; Ewha Womans Univ, Dept Environm Sci & Engn, 52 Ewhayeodae Gil, Seoul 03760, South Korea ⓘ ; Yoon, Yeomin/KDP-2253-2024; Choong, Choe Earn/J-3005-2016; Jang, Min/J-2230-2012; Park, Chang Min/CAA-8506-2022; Nam, Seong-Nam/ABT-9415-2022 ⓘ 57226757907; 57201422323; 6701721727; 57200944393; 36762550700; 57209588953; 42461338400; 7402126688 ⓘ jiyongheo@naver.com;yoony@cec.sc.edu; ⓘ DESALINATION ⓘ DESALINATION ⓘ 0011-9164 1873-4464 543 SCIE ENGINEERING, CHEMICAL;WATER RESOURCES ⓘ 2022 9.9 2.4 2.08 2025-06-25 ⓘ 26 27 Artificial neural network; Forward osmosis; Machine learning; Response surface methodology; Ultrafiltration ⓘ ARTIFICIAL NEURAL-NETWORK; WASTE-WATER; MODELING APPROACH; DESALINATION; PREDICTION; MEMBRANE; DEGRADATION; ADSORPTION; COMPOSITE; SCALE ⓘ Artificial neural network; Forward osmosis; Machine learning; Response surface methodology; Ultrafiltration ⓘ Hybrid systems; Machine learning; Rhodium compounds; Surface properties; Ultrafiltration; Water treatment; Draw solutions; Feed solution; Forward osmosis; Low pressures; Machine-learning; Response-surface methodology; Rhodamine-B; Solution concentration; Systems performance; Water flux; artificial neural network; low pressure; machine learning; membrane; optimization; osmosis; performance assessment; pollutant removal; response surface methodology; ultrafiltration; water flux; water treatment; Neural networks ⓘ English 2022 2022-12-01 10.1016/j.desal.2022.116102 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Room-Temperature-Grown amorphous Indium-Tin-Silicon-Oxide thin film as a new electron transporting layer for perovskite solar cells ⓘ We report the amorphous quaternary oxide, indium-tin-silicon-oxide (ITSO), thin film as a new electron transport layer (ETL) for perovskite solar cells (PSCs). ITSO thin films are grown by magnetron co-sputtering indium-tin-oxide (ITO) and silicon oxide (SiO2) on commercial transparent conducting oxide (TCO) thin films at room temperature. As Si content increases (0-53.8 at%) the optical bandgap increases by approximately 1.3 eV and the electrical resistivity increases by six orders mainly because of the carrier concentration decrease. Consequently, the ITSO electronic structure depends largely on Si content. PSCs employing ITSO thin films as ETLs were fabricated to evaluate the effect of Si content on device performances. Si content influenced the shunt and series resistance. The optimized device was obtained using an ITSO film with 33.0 at% Si content, exhibiting 14.50% power-conversion efficiency. These results demonstrate that ITSO films are promising for developing efficient PSCs by optimizing the growing process and/or In/Sn/Si/O compositions. This approach can reduce PSC manufacturing process time and costs if ITO and ITSO are grown together by continuous sequential sputtering in a dual gun (ITO and SiO2) chamber. ⓘ Jeong, Heesu; Han, Jeong Woo; Baek, Seungtae; Kim, Sang Hyub; Lee, Minho; Yun, Yeonghun; Kim, Byeong Jo; Jo, Hyunil; Jung, Hyun Suk; Park, Ik Jae; Heo, Yeong-Woo; Lee, Sangwook ⓘ Kyungpook Natl Univ, Sch Mat Sci & Engn, Daegu 41566, South Korea; Uppsala Univ, Dept Chem Angstr Lab, Phys Chem, POB 523, SE-75120 Uppsala, Sweden; Sungkyunkwan Univ, Sch Adv Mat Sci & Engn, Suwon, South Korea; Sookmyung Womens Univ, Dept Appl Phys, Seoul 04310, South Korea ⓘ Han, Jeong Woo/D-3369-2011; Jung, Hyun Suk/H-3659-2015; Lee, Sangwook/O-9166-2015; Yun, Yeonghun/KRP-9208-2024; Kim, Byeong/M-4110-2014 ⓘ 57194265300; 59475446600; 57203532105; 57211365899; 57191730119; 57202548363; 56035375300; 57216761469; 9432551800; 36794339800; 7004298542; 57203597324 ⓘ parkij@sookmyung.ac.kr;ywheo@knu.ac.kr;wook2@knu.ac.kr; ⓘ APPLIED SURFACE SCIENCE ⓘ APPL SURF SCI ⓘ 0169-4332 1873-5584 581 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, COATINGS & FILMS;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER ⓘ 2022 6.7 2.4 0.25 2025-06-25 ⓘ 2 3 Indium-tin-silicon-oxides; Low-temperature processes; Amorphous inorganic materials; Perovskite solar cells; Electron transport layers ⓘ STABILITY ENHANCEMENT; OPTICAL-PROPERTIES; EFFICIENT; HYSTERESIS; SNO2; CONDUCTIVITY; EXTRACTION; SI ⓘ Amorphous inorganic materials; Electron transport layers; Indium-tin-silicon-oxides; Low-temperature processes; Perovskite solar cells ⓘ Amorphous silicon; Carrier concentration; Electric resistance; Electron transport properties; Electronic structure; Indium compounds; Magnetrons; Perovskite; Perovskite solar cells; Silica; Silicon solar cells; Temperature; Thin films; Tin oxides; Transparent conducting oxides; Amorphous inorganic material; Electron transport layers; Electron transporting layer; Indium-tin-silicon-oxide; Inorganic materials; Low- temperature process; Quaternary oxides; Si content; Silicon oxide films; Silicon oxide thin films; Silicon oxides ⓘ English 2022 2022-04-15 10.1016/j.apsusc.2021.151570 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Size-dependent selectivity and activity of highly dispersed sub-nanometer Pt clusters integrated with P25 for CO2 photoreduction into methane fuel ⓘ Integration of sub-nanometer-sized Pt cocatalysts on semiconductor materials is a promising approach to improve the activity and selectivity of CO2 photoreduction. However, the practical realization of such an integrated catalyst is a challenging task. We rationally integrated sub-nanometer Pt nanoclusters (Pt NCs) on the surface of commercial P25 catalyst by adjusting the amount of Pt loading. The lateral reduction in the size of Pt NCs resulted in high metal dispersion, increased active metal surface area, better CO2 adsorption, and hindered photoexcited charge-carrier recombination. The sub-nanometer Pt NCs integrated with P25 with a weight percentage of 0.5% (Pt-NC/P25-0.5) exhibited exceptional CO2 photoreduction activity for CH4 production and excellent stability during successive test runs. This catalyst outperformed its counterparts with larger Pt NCs and several previously reported state-of-the-art photocatalysts in terms of CH4 generation. Importantly, compared to its counterparts, Pt-NC/P25-0.5 had a higher proportion of edge and corner sites, which have a strong affinity for CO molecules, resulting in a high CH4 selectivity of 95% against H-2. The size-dependent selectivity and activity of Pt NCs for CO2 reduction demonstrated in this study offer insights into the development of sub-nanometer metal based catalysts for photocatalytic energy applications. ⓘ Lee, Dong-Eun; Kim, Dong Jin; Devthade, Vidyasagar; Jo, Wan-Kuen; Tonda, Surendar ⓘ Kyungpook Natl Univ, Sch Architecture Civil Environm & Energy Engn, 80 Daehak Ro, Daegu 41566, South Korea; Kyungpook Natl Univ, Dept Mat Sci & Engn, 80 Daehak Ro, Daegu 41566, South Korea ⓘ Vidyasagar, Devthade/O-3930-2015; Jo, Wan/AAO-5329-2020; Tonda, Surendar/AAO-3358-2020 ⓘ 56605563300; 56984538100; 57201674442; 7103322277; 56114866900 ⓘ surendart@knu.ac.kr; ⓘ APPLIED SURFACE SCIENCE ⓘ APPL SURF SCI ⓘ 0169-4332 1873-5584 584 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, COATINGS & FILMS;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER ⓘ 2022 6.7 2.4 0.93 2025-06-25 ⓘ 11 12 Pt nanoclusters; Sub-nanometer cocatalysts; Size dependency; CO2 photoreduction; Solar energy conversion ⓘ STABLE SINGLE-ATOM; CARBON-DIOXIDE; PHOTOCATALYTIC REDUCTION; ROOM-TEMPERATURE; DOPED TIO2; EFFICIENT; HYBRID; PERFORMANCE; CATALYSTS; OXIDATION ⓘ CO<sub>2</sub> photoreduction; Pt nanoclusters; Size dependency; Solar energy conversion; Sub-nanometer cocatalysts ⓘ Catalyst selectivity; Energy conversion; Nanoclusters; Platinum; Semiconductor materials; Solar energy; Co catalysts; CO2 photoreduction; Photo reduction; Pt nanoclusters; Size dependency; Size dependent; Solar energy conversions; Sub nanometers; Sub-nanometer cocatalyst; ]+ catalyst; Carbon dioxide ⓘ English 2022 2022-05-15 10.1016/j.apsusc.2022.152532 ⓘ 바로가기 바로가기 바로가기 바로가기
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