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energy & environmental Materials 2024年第1期7卷 147-152页

作者： Sun Kyung hwang Ik Jae park Se Won Seo Jae hyun park So jeong park Jin Young Kim Department of Materials Science and engineering Seoul National UniversitySeoul 08826Korea Department of Applied Physics Sookmyung Women's UniversitySeoul 04310Korea Research Institute of Advanced Materials and Systems Sookmyung Women's UniversitySeoul 04310Korea Research Institute of Advanced Materials(RIAM) Seoul National UniversitySeoul 08826Korea

In spite of the high potential economic feasibility of the tandem solar cells consisting of the halide perovskite and the kesterite Cu2ZnSn(S,Se)4(CZTSSe),they have rarely been demonstrated due to the difficulty in implementing solution-processed perovskite top cell on the rough surface of the bottom ***,we firstly demonstrate an efficient monolithic two-terminal perovskite/CZTSSe tandem solar cell by significantly reducing the surface rough.ess of the electrochemically deposited CZTSSe bottom *** surface rough.ess(R_(rms))of the CZTSSe thin film could be reduced from 424 to 86 nm by using the potentiostatic mode rather than using the conventional galvanostatic mode,which can be further reduced to 22 nm after the subsequent ion-milling *** perovskite top cell with a bandgap of 1.65 eV could be prepared using a solution process on the flattened CZTSSe bottom cell,resulting in the efficient perovskite/CZTSSe tandem solar *** the current matching between two subcells involving the thickness control of the perovskite layer,the best performing tandem device exhibited a high conversion efficiency of 17.5%without the hysteresis effect.

关键词： CZTSSe monolithic tandem solar cells perovskite solution process surface rough.ess control

Self-supported VO_(2)on polydopamine-derived pyroprotein-based fibers for ultrastable and flexible aqueous zinc-ion batteries

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Carbon energy 2024年第7期6卷 1-13页

作者： jeong Seok Yeon Sul Ki park Shinik Kim Santosh VMohite Won Il Kim Gun Jang hyun-Seok Jang Jiyoung Bae Sang Moon Lee Won Ghong Byung hoon Kim Yeonho Kim ho Seok park School of Chemical engineering College of EngineeringSungkyunkwan UniversityGyeonggi-doRepublic of Korea Department of engineering University of CambridgeCambridgeUK Department of Applied Chemistry Konkuk UniversityChungjuRepublic of Korea Department of Chemistry Ulsan National Institute of Science and Technology(UNIST)College of Natural SciencesUlsanRepublic of Korea Department of Physics Incheon National UniversityIncheonRepublic of Korea Intelligent Sensor Convergence Research Center Incheon National UniversityIncheonRepublic of Korea Institute of Basic Science Incheon National UniversityIncheonRepublic of Korea Division of Material Analysis and Research Korea Basic Science InstituteDaejeonRepublic of Korea

A conventional electrode composite for rechargeable zinc-ion batteries(ZIBs)includes a binder for strong adhesion between the electrode material and the current ***,the introduction of a binder leads to electrochemical inactivity and low electrical conductivity,resulting in the decay of the capacity and a low rate *** present a binder-and conducting agent-free VO_(2)composite electrode using in situ polymerization of dopamine on a flexible current collector of pyroprotein-based *** as-fabricated composite electrode was used as a substrate for the direct growth of VO_(2)as a self-supported form on polydopamine-derived pyroprotein-based fibers(pp-fibers@VO_(2)(B)).It has a high conductivity and flexible nature as a current collector and moderate binding without conventional binders and conducting agents for the VO_(2)(B)*** addition,their electrochemical mechanism was *** energy storage is induced by Zn^(2+)/h^(+)coinsertion during discharging,which can be confirmed by the lattice expansion,the formation of by-products including Zn_(x)(OTf)_(y)(Oh)_(2x−y)·nh_(2)O,and the reduction of V^(4+)to V^(3+).Furthermore,the assembled Zn//pp-fibers@VO_(2)(B)pouch cells have excellent flexibility and stable electrochemical performance under various bending states,showing application possibilities for portable and wearable power sources.

关键词： aqueous battery binder free conducting agent‐free flexible electrode zinc‐ion battery

high Na-ion conductivity andmechanical integrity of anion-exchanged polymeric hydrogel electrolytes for flexible sodium ion hybrid energy storage

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SusMat 2024年第1期4卷 140-153页

作者： JungWoo hong harpalsinh h.Rana jeong h.e park Jun Su Kim Sang Joon Lee Gun Jang Tae hoon Kang Kang ho Shin Sang ha Baek Wooseok Yang Kwang ho Kim Ju-hyuk Lee ho Seok park School of Chemical engineering Sungkyunkwan UniversitySuwonRepublic of Korea Clean energy Research Center Korea Institute of Science and Technology(KIST)SeoulRepublic of Korea KIST-SKKU Carbon-Neutral Research Center Sungkyunkwan University(SKKU)SuwonRepublic of Korea SKKU Institute of energy Science and Technology(SIeST) Sungkyunkwan UniversitySuwonRepublic of Korea COSMOS LAB/92 Jomaru-ro 385beon-gilBucheon-siRepublic of Korea SKKU Advanced Institute of Nano Technology(SAINT) Sungkyunkwan UniversitySuwonRepublic of Korea Department of health Sciences and Technology Samsung Advanced Institute for Health Sciences and Technology(SAIHST)Sungkyunkwan UniversitySuwonRepublic of Korea

The polymeric gel electrolytes are attractive owing to their higher ionic conductivities than those of dry polymer electrolytes and lowered water activity for enlarged potential ***,the ionic conductivity and mechanical strength of the Na-ion conducting polymeric gel electrolytes are limited by below 20 mS cm−1 and 2.2 ***,we demonstrate Na-ion conducting and flexible polymeric hydrogel electrolytes of the chemically coupled poly(diallyldimethylammonium chloride)-dextrin-N,N′-methylene-bisacrylamide film immersed in NaClO_(4) solution(ex-DDA-Dex+NaClO_(4))for flexible sodium-ion hybrid capacitors(f-NIhC).In particular,the anion exchange reaction and synergistic interaction of ex-DDA-Dex with the optimum ClO_(4)−enable to greatly improve the ionic conductivity up to 27.63 mS cm−1 at 25◦C and electrochemical stability window up to 2.6 V,whereas the double networking structure leads to ach.eve both the mechanical strength(7.48 MPa)and softness of hydrogel ***,the f-NIhCs with the ex-DDA-Dex+NaClO_(4) ach.eved high specific and high-rate capacities of 192.04 F g^(−1)at 500 mA g^(−1)and 116.06 F g^(−1)at 10000 mA g^(−1),respectively,delivering a large energy density of 120.03Wh kg^(−1)at 906Wkg^(−1)and long cyclability of 70%over 500 cycles as well as demonstrating functional operation under mechanical stresses.

关键词： anion exchange chemistry flexible energy storage hybrid energy storage hydrogel electrolytes renewable electrolytes sodium storage

Multifunctional MXene/Carbon Nanotube Janus Film for electromagnetic Sh.elding and Infrared Sh.elding/Detection in harsh.environments

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Nano-Micro Letters 2024年第10期16卷 543-560页

作者： Tufail hassan Aamir Iqbal Byungkwon Yoo Jun Young Jo Nilufer Cakmakci Shabbir Madad Naqvi h.erim Kim Sungmin Jung Noushad hussain Ujala Zafar Soo Yeong Cho Seunghwan jeong Jaewoo Kim Jung Min Oh Sangwoon park Youngjin jeong Chong Min Koo School of Advanced Materials Science and engineering Sungkyunkwan UniversitySeobu-ro 2066Jangan-guSuwon-siGyeonggi-do 16419Republic of Korea Department of Materials Science and engineering Soongsil UniversitySeoul 06978Republic of Korea Institute of Advanced Composite Materials Korea Institute of Science and Technology92 Chudong-roBongdong-eupWanju-gunJeollabuk-do 55324Republic of Korea R&D Center INNOMXeNe Co. Ltd.Daejeon 34365Republic of Korea School of Chemical engineering Sungkyunkwan UniversitySeobu-ro 2066Jangan-guSuwon-siGyeonggi-do 16419Republic of Korea

Multifunctional,flexible,and robust thin films capable of operating in demanding harsh temperature environments are crucial for various cutting-edge *** study presents a multifunctional Janus film integrating highly-crystalline Ti_(3)C_(2)T_(x) MXene and mechanically-robust carbon nanotube(CNT)film through strong hydrogen *** hybrid film not only exhibits high.electrical conductivity(4250 S cm^(-1)),but also demonstrates robust mechanical strength and durability in both.extremely low and high temperature environments,showing exceptional resistance to thermal *** hybrid Janus film of 15μm thickness reveals remarkable multifunctionality,including efficient electromagnetic sh.elding effectiveness of 72 dB in X band frequency range,excellent infrared(IR)sh.elding capability with an average emissivity of 0.09(a minimal value of 0.02),superior thermal camouflage performance over a wide temperature range(−1 to 300℃)ach.eving a notable reduction in the radiated temperature by 243℃ against a background temperature of 300℃,and outstanding IR detection capability characterized by a 44%increase in resistance when exposed to 250 W IR *** multifunctional MXene/CNT Janus film offers a feasible solution for electromagnetic sh.elding and IR sh.elding/detection under challenging conditions.

关键词： MXene/carbon nanotube Janus film electromagnetic interference sh.elding Infrared sh.elding Thermal camouflage Infrared detection

Stable immobilization of lithium polysulfides using th.ee-dimensional ordered mesoporous Mn_(2)O_(3) as the host material in lithium-sulfur batteries

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Carbon energy 2024年第6期6卷 99-112页

作者： Sung Joon park Yun jeong Choi hyun-seung Kim Min Joo hong hongjun Chang Janghyuk Moon Young-Jun Kim Junyoung Mun Ki Jae Kim Department of energy Science Sungkyunkwan UniversitySuwonGyeonggi-doRepublic of Korea Department of energy engineering Konkuk UniversitySeoulRepublic of Korea Advanced Batteries Research Center Korea Electronic Technology InstituteSeongnamRepublic of Korea Department of Future energy engineering Sungkyunkwan UniversitySuwonRepublic of Korea Department of energy Systems engineering Chung-Ang UniversitySeoulRepublic of Korea SKKU Advanced Institute of Nanotechnology Sungkyunkwan UniversitySuwonGyeonggi-doRepublic of Korea SKKU Institute of energy Science and Technology(SIeST) Sungkyunkwan UniversitySuwonRepublic of Korea School of Advanced Materials Science and engineering Sungkyunkwan UniversitySuwonRepublic of Korea

Lithium-sulfur batteries(LSBs)have drawn significant attention owing to their high theoretical discharge capacity and energy ***,the dissolution of long-chain polysulfides into the electrolyte during the charge and discharge process(“shuttle effect”)results in fast capacity fading and inferior electrochemical *** this study,Mn_(2)O_(3)with an ordered mesoporous structure(OM-Mn_(2)O_(3))was designed as a cathode host for LSBs via KIT-6 hard templating,to effectively inhibit the polysulfide shuttle ***-Mn_(2)O_(3)offers numerous pores to confine sulfur and tightly anchor the dissolved polysulfides through the combined effects of strong polar-polar interactions,polysulfides,and sulfur chain *** OM-Mn_(2)O_(3)/S composite electrode delivered a discharge capacity of 561 mAh g^(-1) after 250 cycles at 0.5 C owing to the excellent performance of OM-Mn_(2)O_(3).Furthermore,it retained a discharge capacity of 628mA h g^(-1) even at a rate of 2 C,which was significantly higher than that of a pristine sulfur electrode(206mA h g^(-1)).These findings provide a prospective strategy for designing cathode materials for high-performance LSBs.

关键词： host material lithium-sulfur battery ordered mesoporous structure shuttle effect transition-metal oxides

SUV39h1-driven NFATc1 methylation is essential for the c-Cbl-mediated degradation of NFATc1 in an osteoclast lineage

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Genes & Diseases 2024年第4期11卷 86-89页

作者： Do-Won jeong h.e-Jin Kim Jong-Wan park Seulbee Lee h.eryeon Jung eugene C.Yi Nacksung Kime Yang-Sook Chun Department of Biomedical Sciences Seoul National University College of MedicineSeoul 03080Republic of Korea Department of Physiology Seoul National University College of MedicineSeoul 03080Republic of Korea Ischemic/hypoxic Disease Institute Seoul National University College of MedicineSeoul 03080Republic of Korea Department of Molecular Medicine and Biopharmaceutical Sciences Graduate School of Convergence Science and Technology and College of Medicine Or College of PharmacySeoul National UniversitySeoul 03080Republic of Korea Department of Pharmacology Chonnam National University Medical SchoolGwangju 61469Republic of Korea

Bone undergoes continuous remodeling by tightly-coordinated actions of bone-resorbing osteoclasts and boneforming osteoblasts.1 Recent studies document that the dysregulation of histone methylation profiles is associated with the progression of ***,the specific epigenetic modifiers are incompletely *** this study,we demonstrate an inhibitory role of a variegation 3-9 homolog 1(SUV39h1)in osteoclast formation.

关键词： osteoclast remodeling incomplete

Gender-and Age-Group Specific Association of Persistent Organic Pollutants(POPs)exposure with Diabetes Mellitus:Korean National environmental health Survey(KoNehS)2015−2017

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environment & health 2024年第5期2卷 322-331页

作者： Inae Lee Min Joo Kim Soh.eon Choi Young Joo park jeongim park Gökçe Nur Ayaz Gowoon Lee Yoon h.e Cho h.e Li Jeon Chulwoo Lee Gi jeong Cheon Min Kyong Moon Kyungho Choi Graduate School of Public health Seoul National UniversitySeoul 08826Republic of Korea Institute of health and environment Seoul National UniversitySeoul 08826Republic of Korea Department of Internal Medicine Seoul National University College of MedicineSeoul 03080Republic of Korea Seoul National University hospital healthcare System Gangnam Center Seoul 06236Republic of Korea Department of environmental health Sciences Soonchunhyang UniversityAsan 31538Republic of Korea Department of Molecular Medicine and Biopharmaceutical Sciences Graduate School of Convergence Science and TechnologySeoul National UniversitySeoul 08826Republic of Korea Center for environmental health Sciences Department of Biomedical and Pharmaceutical SciencesUniversity of MontanaMissoulaMontana 59812United States environmental health Research Division National Institute of Environmental ResearchMinistry of EnvironmentIncheon 22689Republic of Korea Department of Nuclear Medicine Seoul National University College of MedicineSeoul 03080Republic of Korea Division of endocrinology Department of Internal MedicineSeoul National University Boramae Medical CenterSeoul 07061Republic of Korea

exposure to persistent organic pollutants(POPs)has been reported as a potential risk factor for diabetes in ***,effect modifications by sex and age,especially among Asian populations,have seldom been *** the present study,we assessed associations of major POPs exposure including organochlorine pesticides(OCPs),polychlorinated biphenyls(PCBs),and polybrominated diphenyl ethers(PBDes),with diabetes in Korean adults(n=1,295),a subset of the Korean National environmental health Survey(KoNehS)Cycle 3(2015−2017).In the adult population,serum levels of dichlorodiphenyltrichloroethanes(DDTs)and PCB167 showed an increased odds ratio(OR)for *** stratified by gender,associations became stronger and more consistent in women:In women,serum levels of OCPs including p,p′-DDT,p,p′-dichlorodiphenyldichloroethylene(p,p′-DDe),andΣOCPs and mono-ortho PCBs,such as PCB118 and PCB157,were significantly associated with *** the male participants,however,no significant positive associations were *** stratified by a cutoff age of 50 years,most studied POPs except PBDes,i.e.,p,p′-DDT,p,p′-DDe,PCB118,PCB157,PCB167,PCB138,and PCB153,showed significant associations with diabetes,in the older *** the younger group,however,no measured POPs showed a significant positive *** of endogenous sex hormones or interaction of POPs on aryl hydrocarbon receptors may partly explain the observed differences by gender and age,although further experimental confirmations should *** findings show that POPs exposure at the current levels is associated with diabetes among general Korean adults,and such associations could be modified by gender and age.

关键词： persistent organic pollutants diabetes age gender toxicity equivalency factor

Crystal reconstruction of V2O3/carbon heterointerfaces via anodic hydration for ultrafast and reversible Mg-ion battery cathodes

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InfoMat 2024年第3期6卷 95-107页

作者： Gun Jang Yun Sang Joe Sang Joon Lee hyun Gyu Cho Sang ha Baek Peixun Xiong Kang ho Shin jeong Seok Yeon Min Su Kang Si hyoung Oh ho Seok park School of Chemical engineering Sungkyunkwan University(SKKU)SuwonRepublic of Korea Advanced Batteries Research Center Korea Electronics Technology InstituteSeongnamRepublic of Korea Korea Institute of Science and Technology SeoulRepublic of Korea SKKU Advanced Institute of Nano Technology(SAINT) Sungkyunkwan UniversitySuwonRepublic of Korea Department of health Sciences and Technology Samsung Advanced Institute for Health Sciences and Technology(SAIHST)Sungkyunkwan UniversitySuwonRepublic of Korea SKKU Institute of energy Science and Technology(SIeST) Sungkyunkwan UniversitySuwonRepublic of Korea

Magnesium-ion batteries(MIBs)have promising applications because of their high theoretical capacity and the natural abundance of magnesium ***,the kinetic performance and cyclic stability of cathode materials are limited by the strong interactions between Mg ions and the crystal ***,we demonstrate the unique Mg^(2+)-ion storage mechanism of a h.erarchical accordion-like vanadium oxide/carbon heterointerface(V2O3@C),where the V2O3 crystalline structure is reconstructed into a MgV_(3)O_(7)·h_(2)O phase through an anodic hydration reaction upon first cycle,for the improved kinetic and cyclic *** verified by in situ/ex situ spectroscopic and electrochemical analyses,the fast charge transfer kinetics of the V2O3@C cathode were due to the crystal-reconstruction and chemically coupled *** V2O3@C demonstrated an ultrahigh rate capacity of 130.4 mAh g^(-1)at 50000 mA g^(-1)and 1000 cycles,ach.eving a Coulombic efficiency of 99.6%.The high capacity of 381.0 mA h g^(-1)can be attributed to the reversible Mg^(2+)-ion intercalation mechanism observed in the MgV_(3)O_(7)·h_(2)O phase using a 0.3 M Mg(TFSI)2/ACN(h_(2)O)***,within the voltage range of 2.25 V versus Mg/Mg^(2+),the V2O3@C exhibited a capacity of 245.1 mAh g^(-1)when evaluated with magnesium metal in a 0.3 M Mg(TFSI)^(2+)0.25 M MgCl_(2)/DMe *** research findings have important implications for understanding the relationship between the Mg-ion storage mechanism and reconstructed crystal phase of vanadium oxides as well as the heterointerface reconstruction for the rational design of MIB cathode materials.

关键词： anodic hydration reaction magnesium ion battery nano crystal vanadium oxide

evaluation of the coefficient of lateral stress at rest of granular materials under repetitive loading conditions

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Journal of Rock Mechanics and Geotechnical engineering 2024年第5期16卷 1709-1721页

作者： h.erym han hyunwook Choo Jungh.e park Department of Civil and environmental engineering Hanyang UniversitySeoul04763South Korea Department of Civil and environmental engineering Incheon National UniversityIncheon22012South Korea

Although the internal stress state of soils can be affected by repetitive loading,there are few studies evaluating the lateral stress(or K_(0))of soils under repetitive *** study investigates the changes in K_(0) and directional shear wave velocity(V_(s))in samples of two granular materials with different particle shapes during repetitive loading.A modified oedometer cell equipped with bender elements and a diaphragm transducer was developed to measure the variations in the lateral stress and the shear wave velocity,under repetitive loading on the loading and unloading *** study produced the following results:(1)Repetitive loading on the loading path resulted in an increase in the K_(0) of test samples as a function of cyclic loading number(i),and(2)Repetitive loading on the unloading path resulted in a decrease in K_(0) according to *** shear wave velocity ratio(i.e.V_(s)(hh)/V_(s)(Vh),where the first and second letters in parentheses corresponds to the directions of wave propagation and particle motion,respectively,and V and h corresponds to the vertical and horizontal directions,respectively)according to i supports the experimental observations of this ***,when the tested material was in lightly over-consolidated state,there was an increase in K_(0) during repetitive loading,indicating that it was the initial K_(0),rather than the loading path,which is responsible for the change in K_(0).The power model can capture the variation in the K_(0) of samples according to ***,the K_(0)=1 line acts as the boundary between the increase and decrease in K_(0) under repetitive loading.

关键词： Coefficient of lateral stress at rest Repetitive loading Granular materials Shear wave velocity Stiffness anisotropy

Solar‑Driven Sustainability:Ⅲ–ⅤSemiconductor for Green energy Production Technologies

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Nano-Micro Letters 2024年第11期16卷 445-478页

作者： Chandran Bagavath jeong‑Kyun Oh Sang‑Wook Lee Dae‑Young Um Sung‑Un Kim Veeramuthu Vignesh Jin‑Seo park Shuo han Cheul‑Ro Lee Yong‑ho Ra Division of Advanced Materials engineering Engineering CollegeResearch Center for Advanced Materials Development(RCAMD)Jeonbuk National UniversityJeonju 54896Republic of Korea

Long-term societal prosperity depends on addressing the world’s energy and environmental problems,and photocatalysis has emerged as a viable *** the efficiency of photocatalytic processes is fundamentally ach.eved by optimizing the effective utilization of solar energy and enhancing the efficient separation of photogenerated *** has been demonstrated that the fabrication ofⅢ–Ⅴsemiconductor-based photocatalysts is effective in increasing solar light absorption,long-term stability,large-scale production and promoting charge *** focused review explores on the current developments inⅢ–Ⅴsemiconductor materials for solar-powered photocatalytic *** review explores on various subjects,including the advancement ofⅢ–Ⅴsemiconductors,photocatalytic mechanisms,and their uses in h2 conversion,CO_(2)reduction,environmental remediation,and photocatalytic oxidation and reduction *** order to design heterostructures,the review delves into basic concepts including solar light absorption and effective charge *** also highlights significant advancements in green energy systems for water splitting,emphasizing the significance of establishing eco-friendly systems for CO_(2)reduction and hydrogen *** main purpose is to produce hydrogen through sustainable and ecologically friendly energy *** review intends to foster the development of greener and more sustainable energy source by encouraging researchers and developers to focus on practical applications and advancements in solar-powered photocatalysis.

关键词： Green energy system hydrogen evolution CO_(2)reduction Ⅲ-Ⅴsemiconductors Photo electrochemical water splitting