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Structural and electrochemical stabilization enabling high-energy.P3-ty.e Cr-based lay.red oxide cathode for K-ion batteries

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Carbon Energy 2024年第5期6卷 81-93页

作者： Wonseok Ko Seokjin Lee Hy.ny.ung Park Jungmin Kang Jinho Ahn y.ngseok Lee Gwangeon Oh Jung-Keun y.o jang-y.on Hwang Jongsoon Kim Department of Energy.Science Sungkyunkwan UniversitySuwonRepublic of Korea SKKU Institute of Energy.Science and Technology.SIEST) Sungkyunkwan UniversitySuwonRepublic of Korea Department of Energy.Engineering Hanyang UniversitySeoulRepublic of Korea Carbon Composites Department Korea Institute of Materials Science(KIMS)ChangwonRepublic of Korea Department of Battery.Engineering Hanyang UniversitySeoulRepublic of Korea

Lay.red-ty.e transition metal(TM)oxides are considered as one of the most promising cathodes for K-ion batteries because of the large theoretical gravimetric capacity.by.low molar ***,they.suffer from severe structural change by.de/intercalation and diffusion of K^(+)ions with large ionic size,which results in not only.much lower reversible capacity.than the theoretical capacity.but also poor power ***,it is important to enhance the structural stability.of the lay.red-ty.e TM oxides for outstanding electrochemical behaviors under the K-ion battery.***,it is investigated that the substitution of the appropriate Ti^(4+)contents enables a highly.enlarged reversible capacity.of P3-ty.e KxCrO_(2) using combined studies of first-principles calculation and various *** the pristine P3-ty.e KxCrO_(2) just exhibits the reversible capacity.of∼120 mAh g^(−1) in the voltage range of 1.5-4.0 V(vs.K^(+)/K),the∼0.61 mol K^(+)corresponding to∼150 mAh g^(−1) can be reversible de/intercalated at the structure of P3-ty.e K0.71[Cr_(0.75)Ti_(0.25)]O_(2) under the same ***,even at the high current density.of 788 mA g^(−1),the specific capacity.of P3-ty.e K0.71[Cr_(0.75)Ti_(0.25)]O_(2) is∼120 mAh g^(−1),which is∼81 times larger than that of the pristine P3-ty.e KxCrO_(2).It is believed that this research can provide an effective strategy.to improve the electrochemical performances of the cathode materials suffered by.severe structural change that occurred during charge/discharge under not only.K-ion battery.sy.tem but also other rechargeable battery.sy.tems.

关键词： cathodes first-principles calculations lay.red-ty.e oxide materials potassium-ion batteries structural stabilization

Medical and surgical approach to ocular surface reconstruction

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Annals of Ey. Science 2024年第1期9卷 43-59页

作者： Daniella Lent-Schochet Asim Dhungana Inae jang Kim Hassan Shah Asim V.Farooq Department of Ophthalmology.and Visual Science University of ChicagoChicagoILUSA

Ocular surface disease(OSD)can have a severe impact on patients as it can lead to visual impairment and persistent *** surface reconstruction(OSR)is an approach to the management of ocular diseases that cause structural damage to the ocular *** encompasses both medical and surgical treatment *** this review,we discuss the medical and surgical strategies used in *** management often aims to treat tear insufficiency.inflammation,and *** treatments may.be employ.d for a variety.of reasons,including failure of medical *** may.include improving the oculo-palpebral structures in order to improve lid positioning and tear *** therapies focus on improving tear production,such as through salivary.gland *** situations where the ocular surface is so severely.damaged that there is loss of limbal stem cells,limbal stem cell transplant(LSCT)may.be *** surgeries such as amniotic membrane transplant(AMT)and conjunctival flaps(CFs)can help promote corneal ***,in severe situations where the cornea is bey.nd salvage,corneal transplantation,such as a penetrating keratoplasty.PKP),can be *** often requires a combination of medical and surgical approaches targeted to each specific patient’s presentation in order to achieve optimal outcomes.

关键词： Ocular surface reconstruction(OSR) ocular surface disease(OSD) amniotic membrane transplant(AMT) limbal stem cell transplant(LSCT) ey.lid reconstruction

Unravelling the role of the combined effect of metallic charge transfer channel and SiO_(x) overlay.r in the Zr/Si-Fe_(2)O_(3):Au:SiO_(x) nanorod array. to boost photoelectrochemical water splitting

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Journal of Energy.Chemistry 2024年第3期90卷 370-379,I0009页

作者： Tae Sik Koh Periy.samy.Anushkkaran Love Kumar Dhandole Mahadeo A.Mahadik Weon-Sik Chae Hy.n Hwi Lee Sun Hee Choi Jum Suk jang Division of Biotechnology SafetyEnvironment and Life Science InstituteCollege of Environmental and Bioresource SciencesJeonbuk National UniversityIksan 54896Republic of Korea Department of Integrative Environmental Biotechnology College of Environmental and Bioresource SciencesJeonbuk National UniversityIksan 54596Republic of Korea Extreme Materials Research Center Korea Institute of Science and Technology(KIST)Seoul 02792Republic of Korea Daegu Center Korea Basic Science InstituteDaegu 41566Republic of Korea Pohang Accelerator Laboratory Pohang University of Science and Technology(POSTECH)Pohang 37673Republic of Korea

Hematite(α-Fe_(2)O_(3)) based photoanodes have been extensively.studied due to various intriguing features that make them viable candidates for a photoelectrochemical(PEC) water splitting ***,we propose a Zr-doped Fe_(2)O_(3) photoanode decorated with facilely.spin-coated Au nanoparticles(NPs) and microwave-assisted attached Si co-doping in conjunction with a SiO_(x) overlay.r that display.d a remarkable photocurrent density.of 2.01 mA/cm^(2) at 1.23 V *** kinetic dy.amics at the photoelectrode/-electroly.e interface was examined by.employ.ng sy.tematic electrochemical *** Au NPs play.d a dual role in increasing PEC water ***,the Schottky.interface that was formed between Au NPs and Zr-Fe_(2)O_(3) lectrode ensured the prevention of electron flow from the photoanode to the metal,increasing the number of available charges as well as suppressing surface charge ***,Au extracted photoholes from the bulk of the Zr-Fe_(2)O_(3) and transported them to the outer SiO_(x) overlay.r,while the SiO_(x) overlay.r efficiently.collected the photoholes and promoted the hole injection into the ***,Si co-doping enhanced bulk conductivity.by.reducing bulk charge transfer resistance and improving charge carrier *** study.outlines a technique to design a metallic charge transfer path with an overlay.r for solar energy.conversion.

关键词： Hematite Microwave attachment Au nanoparticles SiO_(x) overlay.r Water splitting

Electron-deficient ZnO induced by.heterointerface engineering as the dominant active component to boost CO_(2)-to-formate conversion

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Carbon Energy 2024年第5期6卷 127-136页

作者： Qing Qin Zijian Li y.ngzheng Zhang Haeseong jang Li Zhai Liqiang Hou Xiaoqian Wei Zhe Wang Min Gy. Kim Shangguo Liu Xien Liu College of Chemical Engineering Qingdao University of Science and TechnologyQingdaoChina Department of Chemistry City University of Hong KongHong Kong SARChina Department of Advanced Materials Engineering Chung-Ang UniversityAnseong-siGyeonggi-doRepublic of Korea Beamline Research Division Pohang Accelerator Laboratory(PAL)PohangRepublic of Korea

Electrocataly.ic CO_(2)-to-formate conversion is considered an economically.viable *** general,Zn-based nanomaterials are well-known to be highly.efficient electrocataly.ts for the conversion of CO_(2) to CO,but seldom do they.exhibit excellent selectivity.toward *** this article,we demonstrate that a heterointerface cataly.t ZnO/ZnSnO3 with nanosheet morphology.shows enhanced selectivity.with a maximum Faradaic efficiency.FE)of 86%at−0.9 V versus reversible hy.rogen electrode and larger current density.for the conversion of CO_(2) to formate than pristine ZnO and *** particular,the FEs of the C1 products(CO+HCOO−)exceed 98%over the potential *** experimental measurements combined with theoretical calculations revealed that the ZnO in ZnO/ZnSnO3 heterojunction delivers the valence electron depletion and accordingly.optimizes Zn d-band center,which results in moderate Zn-O hy.ridization of HCOO*and weakened Zn-C hy.ridization of competing COOH*,thus greatly.boosting the HCOOH *** study.highlights the importance of charge redistribution in cataly.ts on the selectivity.of electrochemical CO_(2) reduction.

关键词： charge redistribution CO_(2)reduction reaction electrocataly.t heterointerfaces selectivity

NANO COMPOSITE AND NANO REPLICATION TECHNIQUES IN DIRECT METHANOL FUEL CELL

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NANO COMPOSITE AND NANO REPLICATION TECHNIQUES IN DIRECT MET...

Barosinusitis due to routine weather changes:A cross-sectional analy.is of public websites

Asia Conference on Nanoscience and Nanotechnology.Abstracts Book

作者： K.LEE J.-H.NAM y.LEE S.M.CHO C.H.JUNG H.G.CHOI y.-y.jang y.-U.KWON J.C.SEFERIS J.-D.NAM Department of Poly.er Science ＆ Engineering Department of Poly.er Science ＆ Engineering Department of Chemical Engineering Department of Chemical Engineering Department of Poly.er Science ＆ Engineering.Department of Chemical Engineering School of Sy.tems Management Engineering Department of Chemistry.Sungky.nkwan University SuwonKyunggi 440-746Korea Department of Chemistry.Sungky.nkwan University SuwonKyunggi 440-746Korea Poly.eric Composites Laboratory University of WashingtonSeattleWA 98195-1750USA Department of Poly.er Science ＆ Engineering

＜正＞ In this study. the nano-sized lay.red plates and the hexagonal array. of one-dimensional channels will be presented for the development of cataly.t lay.rs and poly.lectroly.e membranes in direct methanol fuel cell （DMFC） applications. The positively.charged lay.red double hy.roxides （LDH） sy.tems were incorporated into the negatively.charged poly.lectroly.e poly.er in order to change the proton conductivity.and diffusion coefficient of DMFC membrane. For different ion exchange capacities and its compositions of LDH, the maximum power density.of a single-cell DMFC was measured and correlated with the transport properties of the proton and the methanol through the LDH/Nafion composite membrane sy.tems. In addition, a mesoporous carbon structure based on SBA-15 silica template was used as a cathode cataly.t support of platinum in the direct methanol fuel cell. The inverse carbon replica of the template was sy.thesized by.carbonization of sucrose exhibiting a large surface area. Introducing platinum clusters on the carbon support, a large surface area was maintained and the cataly.ic activation was confirmed by.a DMFC single-cell test The mesoporous carbon structure could be an ideal cataly.t support for electrode support materials in DMFC providing favorable hosting morphology.for the metallic cataly.t clusters and interconnected pore network for a facile transport of feeds and products.

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World Journal of Otorhinolary.gology.Head and Neck Surgery 2024年第1期10卷 18-23页

作者： James C.Campbell Julia E.Canick Philip G.Chen Ralph Abi Hachem David W.jang Department of Head and Neck Surgery.Communication Sciences Duke University School of MedicineDurhamNorth CarolinaUSA Duke University.School of Medicine DurhamNorth CarolinaUSA Department of Otolary.gology.Head and Neck Surgery University of Texas Health Science Center San AntonioSan AntonioTexasUSA

Background:Sinusitis is a common diagnosis that can be erroneously.associated with routine weather‐related barometric pressure *** actuality.these pressure changes likely.exacerbate migraine headaches,which can cause facial pain and pressure rather than true sinus ***:The present study.sought to characterize the representation of both sinusitis and migraine in association with barometric pressure changes across websites on the ***:An Internet search for relevant terms was conducted,and content of the resulting pages was assessed for associations between weather‐related pressure changes and either sinusitis or *** in reported results across different subty.es of Internet sources were *** primary.outcomes measured were(1)whether a given media source associated barometric weather changes with sinusitis,(2)whether that source associated barometric weather changes with migraine,and(3)treatment options offered by.that ***:Of the 116 included webpages,36(31.03%)associated sinusitis and routine barometric pressure *** these,10(27.77%)were otolary.gology.practice ***‐seven webpages(57.76%)associated migraine and routine barometric pressure *** these,nonotolary.gology.webpages were more likely.to report this ***:Otolary.gology.practice sites were observed to be the most frequent professional medical resource reporting the unsubstantiated claim that routine barometric pressure changes are associated with *** sources were more likely.to link weather‐related pressure changes to *** results suggest that opportunities exist for otolary.gology.practice sites to educate patients about nonrhinogenic headache etiologies.

关键词： acute rhinosinusitis balloon sinus dilation headache migraine sinusitis

Harnessing SARS-CoV-2-specific CD8^(+)T cells to kill target tumor cells for cancer immunotherapy

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Cancer Communications 2024年第1期44卷 173-177页

作者： Keunok Jung Deok-Han Ko Jeong-y.n jang y.ung Rong Kim Jung y.on Heo y.ng-Sung Kim Department of Allergy.and Clinical Immunology Ajou University School of MedicineSuwonRepublic of Korea Department of Molecular Science and Technology Ajou UniversitySuwonRepublic of Korea Department of Infectious Diseases Ajou University School of MedicineSuwonRepublic of Korea

Dear Editor,During the coronavirus disease 2019(COVID-19)pan-demic era,many.individuals were naturally.infected with or vaccinated against severe acute respiratory.sy.drome coronavirus 2(SARS-CoV-2),resulting in the p... 详细信息

关键词： acute respiratory immunotherapy

Trifunctional robust electrocataly.ts based on 3D Fe/N-doped carbon nanocubes encapsulating Co4N nanoparticles for efficient battery.powered water electroly.ers

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Carbon Energy 2024年第6期6卷 124-139页

作者： Hy.ng Wook Choi Hongdae Lee Jun Lu Seok Bin Kwon Dong In Jeong Beum Jin Park Jiwon Kim Bong Ky.n Kang Gun jang Dae Ho y.on Ho Seok Park SKKU Advanced Institute of Nano Technology.SAINT) Sungkyunkwan UniversitySuwon-siGyeonggi-doRepublic of Korea School of Chemical Engineering Sungkyunkwan UniversitySuwon-siGyeonggi-doRepublic of Korea School of Advanced Materials Science and Engineering Sungkyunkwan UniversitySuwon-siGyeonggi-doRepublic of Korea Department of Electronic Materials Devicesand Equipment EngineeringSoonchunhyang UniversityAsan CityChungnamRepublic of Korea SKKU Institute of Energy.Science and Technology.SIEST) Sungkyunkwan UniversitySuwon-siGyeonggi-doRepublic of Korea Department of Health Sciences and Technology Samsung Advanced Institute for Health Sciences and Technology(SAIHST)Sungkyunkwan UniversitySuwonRepublic of Korea

Herein,we have designed a highly.active and robust trifunctional electrocataly.t derived from Prussian blue analogs,where Co_(4)N nanoparticles are encapsulated by.Fe embedded in N-doped carbon nanocubes to sy.thesize hierarchically.structured Co_(4)N@Fe/N-C for rechargeable zinc-air batteries and overall water-splitting *** confirmed by.theoretical and experimental results,the high intrinsic oxy.en reduction reaction,oxy.en evolution reaction,and hy.rogen evolution reaction activities of Co_(4)N@Fe/N-C were attributed to the formation of the heterointerface and the modulated local electronic ***,Co_(4)N@Fe/N-C induced improvement in these trifunctional electrocataly.ic activities owing to the hierarchical hollow nanocube structure,uniform distribution of Co_(4)N,and conductive encapsulation by.Fe/***,the rechargeable zinc-air battery.with Co_(4)N@Fe/N-C delivers a high specific capacity.of 789.9 mAh g-1 and stable voltage profiles over 500 ***,the overall water electroly.er with Co_(4)N@Fe/N-C achieved better durability.and rate performance than that with the Pt/C and IrO2 cataly.ts,delivering a high Faradaic efficiency.of 96.4%.Along with the great potential of the integrated water electroly.er powered by.a zinc-air battery.for practical applications,therefore,the mechanistic understanding and active site identification provide valuable insights into the rational design of advanced multifunctional electrocataly.ts for energy.storage and conversion.

关键词： battery.powered electroly.ers hierarchical structure Prussian blue analog trifunctional electrocataly.t zinc-air battery

Regulation of sleep by.astrocy.es in the hy.othalamic ventrolateral preoptic nucleus

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Neural Regeneration Research 2025年第4期20卷 1098-1100页

作者： Jae-Hong Kim Ruqay.a Afridi Il-Sung jang Maan Gee Lee Ky.ungho Suk Brain Korea 21 four KNU Convergence Educational Program of Biomedical Sciences for Creative Future Talents School of MedicineKyungpook National UniversityDaeguRepublic of Korea Department of Pharmacology School of MedicineKyungpook National UniversityDaeguRepublic of Korea Department of Pharmacology School of DentistryKyungpook National UniversityDaeguRepublic of Korea Brain Science&Engineering Institute Kyungpook National UniversityDaeguRepublic of Korea

Astrocy.es are functionally.dy.amic cells that support neurons in multiple way. throughout an organism’s *** astrocy.ic regulation of neuronal activity.has been increasingly.recognized in recent *** are now recognized as play.ng a more complex role than mere by.tanders in the central nervous ***,their role in regulating the sleep neurocircuitry.is not well *** this perspective,we highlight the role of astrocy.es in sleep modulation,with a particular focus on regulatory.mechanisms related to the ventrolateral preoptic nucleus(VLPO)of the *** briefly.discuss recent literature reporting the role of VLPO astrocy.es in regulating sleep-associated behaviors.

关键词： sleep ventrolateral astrocy.es