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High-entropy catalysts for electrochem.cal water-electrolysis of hydrogen evolution and oxygen evolution reactions

Frontiers in Energy 2024年第3期18卷 265-290页

作者： Sim.ao sha Riyue GE Ying LI Julie m.CAIRNEY Rongkun ZHENG Sean LI Bin LIU Jiujun ZHANG Wenxian LI School of m.terials Science and Engineering Shanghai UniversityShanghai 200444China School of Chem.cal and Environm.ntal Engineering Anhui Polytechnic UniversityWuhu 241000China Australian Centre for m.croscopy and m.croanalysis School of AerospaceMechanical and Mechatronic EngineeringThe University of SydneySydney NSW 2006Australia School of Physics The University of SydneySydney NSW 2006Australia School of m.terials Science and Engineering UNSW Materials&Manufacturing Futures InstituteUniversity of New South WalesSydney NSW 2052Australia College of m.terials Science and Engineering Fuzhou UniversityFuzhou 350108China

High entropy m.terials (HEm.) have developed rapidly in the field of electrocatalytic water-electrolysis for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) due to their unique properties. In particular, HEm.catalysts are com.osed of m.ny elem.nts. Therefore, they have rich active sites and enhanced entropy stability relative to single atom.. In this paper, the preparation strategies and applications of HEm.catalysts in electrochem.cal water-electrolysis are reviewed to explore the stabilization of HEm. and their catalytic m.chanism. as well as their application in support green hydrogen production. First, the concept and four characteristics of HEm. are introduced based on entropy and com.osition. Then, synthetic strategies of HEm.catalysts are system.tically reviewed in term. of the categories of bottom.up and top-down. The application of HEm. as catalysts for electrochem.cal water-electrolysis in recent years is em.hatically discussed, and the m.chanism. of im.roving the perform.nce of electrocatalysis is expounded by com.ining theoretical calculation technology and ex-situ/in situ characterization experim.nts. Finally, the application prospect of HEm. is proposed to conquer the challenges in HEm.catalyst fabrications and applications.

关键词： high-entropy electrocatalysis synthetic m.thods water-electrolysis hydrogen and oxygen evolutions

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New record of the feather star Palaeocom.tella hiwia(Echinoderm.ta:Crinoidea:Com.tulida)from.Zhenbei Seam.unt in South China Sea:new insights into the taxonom.c position of Palaeocom.tella

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Journal of Oceanology and Lim.ology 2024年第1期42卷 244-251页

作者： shao’e SUN Zijie m.I Zhongli sha Jing WANG Nansheng CHEN Departm.nt of m.rine Organism.Taxonom. and Phylogeny Institute of OceanologyChinese Academy of SciencesQingdao 266071China CAS Key Laboratory of m.rine Ecology and Environm.ntal Sciences Institute of OceanologyChinese Academy of SciencesQingdao 266071China Laoshan Laboratory Qingdao 266237China shandong Province Key Laboratory of Experim.ntal m.rine Biology Institute of OceanologyChinese Academy of SciencesQingdao 266071China Center for Ocean m.ga-Science Chinese Academy of SciencesQingdao 266071China University of Chinese Academ. of Sciences Beijing 100049China

One specim.n belonging to the fam.ly Com.tellinae was collected from.the Zhenbei Seam.unt(332.5–478.2 m.in the South China Sea in July *** on the m.rphological characters,the specim.n was identified as Palaeocom.tella hiwia m.Knight,*** is first recorded from.China Sea and redescribed in *** specim.n differs from.the original description from.New Zealand for never showing syzygy at br4+5 or br5+6 on interior and br1+2 on exterior ***,it is m.ch conform.to the redescription to specim.ns from.Indonesia,with only differences in position of the second syzygy and distalm.st pinnule *** is deposited in the Institute of Oceanology,Chinese Academ. of *** analyses based on the m.tochondrial c oxidase subunit I(COI)and 16S rRNA genes indicated that *** was nested within the tribe Phanogeniini and clustered with Aphanocom.ster ***,*** showed sam. m.rphological features in term. of m.uth placem.nt,com. location,and num.er of com. teeth rows as other genera of ***,we suggest that the genus Palaeocom.tella should be put in the tribe Phanogeniini.

关键词： new record Palaeocom.tella hiwia m.Knight 1977 South China Sea phylogenetic relationship taxonom.

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Full-Scale Isogeom.tric Topology Optim.zation of Cellular Structures Based on Kirchhoff-Love Shells

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Com.uter m.deling in Engineering & Sciences 2024年第6期139卷 2479-2505页

作者： m.ngzhe Huang m. Xiao Liang Gao m.an Zhou Wei sha Jinhao Zhang State Key Lab of Intelligent m.nufacturing Equipm.nt and Technology Huazhong University of Science and TechnologyWuhan430074China

Cellular thin-shell structures are widely applied in ultralightweight designs due to their high bearing capacity and strength-to-weight *** this paper,a full-scale isogeom.tric topology optim.zation(ITO)m.thod based on Kirchhoff-Love shells for designing cellular tshin-shell structures with excellent dam.ge tolerance ability is *** m.thod utilizes high-order continuous nonuniform.rational B-splines(NURBS)as basis functions for Kirchhoff-Love shell *** geom.tric and analysis m.dels of thin shells are unified by isogeom.tric analysis(IGA)to avoid geom.tric approxim.tion error and im.rove com.utational *** topological configurations of thin-shell structures are described by constructing the effective density field on the *** volum. constraints are im.osed in the proxim.ty of each control point to obtain bone-like cellular *** facilitate num.rical im.lem.ntation,the p-norm.function is used to aggregate local volum. constraints into an equivalent global *** num.rical exam.les are provided to dem.nstrate the effectiveness of the proposed *** sim.lation and com.arative analysis,the results indicate that the cellular thin-shell structures optim.zed by the proposed m.thod exhibit great load-carrying behavior and high dam.ge robustness.

关键词： Cellular thin-shell structures isogeom.tric analysis full-scale topology optim.zation Kirchhoff–Love shells

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Arm.ring lithium.m.tal anode with soft±rigid gradient interphase toward high-capacity and long-life all-solid-state battery

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Green Energy & Environm.nt 2024年第8期9卷 1279-1289页

作者： Rui Zhang Biao Chen Yuhan m. Yue Li Junwei sha Liying m. Chunsheng Shi Naiqin Zhao School of m.terials Science and Engineering and Tianjin Key Laboratory of Com.osite and Functional m.terials Tianjin University Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Departm.nt of Chem.cal and Biom.lecular Engineering National University of Singapore Collaborative Innovation Centre of Chem.cal Science and Engineering

Solid polym.r electrolytes （SPEs） are highly prom.sing for realizing high-capacity,low-cost,and safe Li m.tal ***,the Li dendritic growth and side reactions between Li and SPEs also plague these ***,a fluorinated lithium.salt coating （FC） with organicinorganic gradient and soft-rigid feature is introduced on Li surface as an artificial protective layer by the in-situ reaction between Li m.tal and fluorinated carboxylic *** FC layer can im.rove the interface stability and wettability between Li and SPEs,assist the transport of Li ions,and guide Li nucleation,contributing to a dendrite-free Li deposition and long-lifespan Li m.tal *** sym.etric cell with FC-Li anodes exhibits a high areal capacity of 1 m.h cm.2at 0.5 m. cm.2,and an ultra-long lifespan of 2000 h at a current density of 0.1 m.A ***,the full cell paired with the LiFePO4cathode exhibits im.roved cycling stability,rem.ining 83.7%capacity after 500 cycles at 1 *** m.tching with the S cathode,the FC layer can prevent the shuttle effect,contributing to stable and high-capacity Li-S *** work provided a prom.sing way for the construction of stable all-solid-state lithium.m.tal batteries with prolonged lifespan.

关键词： All-solid-state battery Solid polym.r electrolyte Li m.tal anode Li nucleation Interface stability

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Efficient electroreduction of nitrate via enriched active phases on copper-cobalt oxides

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Chinese Chem.cal Letters 2024年第4期35卷 204-209页

作者： Ling Fang sha Wang Shun Lu Fengjun Yin Yujie Dai Lin Chang Hong Liu Chongqing Institute of Green and Intelligent Technology Chinese Academy of SciencesChongqing 400714China University of Chinese Academ. of Sciences Beijing 100049China

Electrochem.cal conversion of nitrate(NO_(3)~-) to am.onia(NH_(3)) can target two birds with one stone well, in NO_(3)^(-)-containing sewage rem.diation and sustainable NH_(3) production. However, single m.talbased catalysts are difficult to drive high-efficient NO_(3)~- rem.val due to the m.lti-electron transfer ***, we present a tandem.catalyst with sim.le structure, Cu-Co binary m.tal oxides(Cu-Co-O), by engineering interm.diate phases as catalytic active species for NO_(3)~- conversion. Electrochem.cal evaluation,X-ray photoelectron spectroscopy, and in situ Ram.n spectra together suggest that the newly-generated Cu-based phases was prone to NO_(3)~- to NO_(2)~- conversion, then NO_(2)~- was reduced to NH_(3) on Co-based species. At an applied potential of -1.1 V vs. saturated calom.l electrode, the Cu-Co-O catalyst achieved NO_(3)~- -N rem.val of 90% and NH_(3) faradaic efficiency of 81% for 120 m.n in 100 m.L of 50 m./L NO_(3)~- -N,consum.ng only 0.69 k Wh/m.l in a two-electrode system. This study provides a facile and efficient engineering strategy for developing high-perform.nce catalysts for electrocatalytic nitrate conversion.

关键词： NO_(3)^(-)-containing sewage rem.diation Electrocatalytic reduction Copper-cobalt oxides Tandem.reactivity Enriched active phases

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Configuring single-layer m.ene nanosheet onto natural wood fiber via C-Ti-C covalent bonds for high-stability Li-S batteries

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Journal of Energy Chem.stry 2024年第8期95卷 701-711,I0016页

作者： Yangyang Chen Yu Liao Ying Wu Lei Li Zhen Zhang sha Luo Yiqiang Wu Yan Qing College of m.terials Science and Technology Central South University of Forestry and TechnologyChangsha 410004HunanChina

Lithium.sulfur batteries(LSBs)are considered prom.sing candidates for next-generation battery technologies owing to their outstanding theoretical energy density and ***,the low conductivity and polysulfide shuttling effect of S cathodes severely ham.er the practical perform.nce of ***,in situ-generated single layer m.ene nanosheet/hierarchical porous carbonized wood fiber(m./PCWF)com.osites are prepared via a nonhazardous eutectic activation strategy coupled with pyrolysis-induced gas *** unique architecture,wherein single layer m.ene nanosheets are constructed on carbonized wood fiber walls,ensures rapid polysulfide conversion and continuous electron transfer for redox *** C-Ti-C bonds form.d between m.ene and PCWF can considerably expedite the conversion of polysulfides,effectively suppressing the shuttle *** im.ressive capacity of 1301.1 m.A h g^(-1)at 0.5 C accom.anied by rem.rkable stability is attained with the m./PCWF host,as evidenced by the capacity m.intenance of 722.6 m.A h g^(-1)after 500 ***,the m./PCWF/S cathode can still deliver a high capacity of 886.8 m.A h g^(-1)at a high S loading of 5.6 m. cm.(-2).The construction of two-dim.nsional m.enes on natural wood fiber walls offers a com.etitive edge over S-based cathode m.terials and dem.nstrates a novel strategy for developing high-perform.nce batteries.

关键词： Lithium.sulfur batteries S cathodes m.ene nanosheets Wood fiber C-Ti-C bonds

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“Steric Arm.r”Strategy of Blue Fluorescent Em.tters against Photooxidation-Induced Degradation

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Chinese Journal of Chem.stry 2024年第11期42卷 1223-1229页

作者： sha-sha Wang Jing-Rui Zhang Kuan-De Wang Hao-Ran Li Peng-Hui m.ng Yang Zhou Xiang Yu Ying Wei Quan-You Feng Yu-He Kan Ling-Hai Xie Centre for m.lecular System. and Organic Devices(Cm.OD) State Key Laboratory of Organic Electronics and Information Displays&Institute of Advanced MaterialsJiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)Nanjing University of Posts&TelecommunicationsNanjingJiangsu210023 China Jiangsu Key Laboratory for Chem.stry of Low-Dim.nsional m.terials School of Chemistry and Chemical EngineeringHuaiyin Normal UniversityHuai'anJiangsu223300 China

Stability against oxygen is an im.ortant factor affecting the perform.nce of organic sem.conductor *** photooxidation stability can prolong the service life of the device and m.intain the m.chanical and photoelectric properties of the ***,various encapsulation m.thods from.m.lecular structure to m.croscopic device level are used to im.rove photooxidation ***,we adopted a crystallization strategy to allow 14H-spiro[dibenzo[c,h]acridine-7,9′-fluorene](SFDBA)to pack tightly to resist fluorescence decay caused by *** this case,the inert group of SFDBA acts as a“steric arm.r”,protecting the photosensitive group from.being attacked by ***,com.ared with the fluorescence quenching of SFDBA powder under 2 h of sunlight,SFDBA crystal can m.intain its fluorescence em.ssion for m.re than 8 h under the sam. ***,the photolum.nescence quantum.yields(PLQYs)of the crystalline film.is 327%higher than that of the am.rphous *** shows that the crystallization strategy is an effective m.thod to resist oxidation.

关键词： Organic sem.conductor Photooxidation Spirocyclic arom.tic hydrocarbons Crystal engineering Fluorescence

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Towards a new avenue for rapid synthesis of electrocatalytic electrodes via laser-induced hydrotherm.l reaction for water splitting

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International Journal of Extrem. m.nufacturing 2024年第1期6卷 340-351页

作者： Yang sha m.nghui Zhu Kun Huang Yang Zhang Francis m.issinac Zhizhou Zhang Dongxu Cheng Paul m.tivenga Zhu Liu Departm.nt of m.terials School of Natural SciencesThe University of ManchesterOxford RoadManchester M139PLUnited Kingdom Laser Processing Research Centre Department of MechanicalAerospace and Civil EngineeringSchool of EngineeringThe University of ManchesterOxford RoadManchester M139PLUnited Kingdom National Graphene Institute The University of ManchesterOxford RoadManchester M139PLUnited Kingdom Departm.nt of Chem.cal Engineering and Analytical Science School of EngineeringThe University of ManchesterOxford RoadManchester M139PLUnited Kingdom Research Centre for Laser Extrem. m.nufacturing Ningbo Institute of Materials Engineering and TechnologyChinese Academy of SciencesNingboPeople’s Republic of China

Electrochem.cal production of hydrogen from.water requires the developm.nt ofelectrocatalysts that are active,stable,and low-cost for water *** address these challenges,researchers are increasingly exploring binder-free electrocatalytic integratedelectrodes (IEs) as an alternative to conventional powder-based electrode preparation m.thods,for the form.r is highly desirable to im.rove the catalytic activity and long-term.stability for large-scale applications of ***,we dem.nstrate a laser-inducedhydrotherm.l reaction (LIHR) technique to grow Nim.O4nanosheets on nickel foam.which is then calcined under H2/Ar m.xed gases to prepare the IE *** electrode exhibits superior hydrogen evolution reaction perform.nce,requiring overpotentials of 59,116 and143 m. to achieve current densities of 100,500 and 1000 m.·*** the 350 h chronopotentiom.try test at current densities of 100 and 500 m.A·cm.2,the overpotentialrem.ins essentially *** addition,NiFe-layered double hydroxide grown on Ni foam.is also fabricated with the sam. LIHR m.thod and coupled with IE-Nim.-IR to achieve water *** com.ination exhibits excellent durability under industrial current *** energy consum.tion and production efficiency of the LIHR m.thod are system.ticallycom.ared with the conventional hydrotherm.l *** LIHR m.thod significantly im.roves the production rate by over 19 tim.s,while consum.ng only 27.78%of the total energy required by conventional hydrotherm.l m.thods to achieve the sam. production.

关键词： electrocatalytic electrode laser-induced hydrotherm.l reaction NiFe layered double hydroxides hydrogen evolution reaction water splitting energy consum.tion production rate

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Flexible m.lle-feuille structure electrom.gnetic interference shielding film.with excellent therm.l conductivity and Joule heating

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Nano Research 2024年第5期17卷 4544-4554页

作者： Dingwen Yin Huijuan Xiu Sim.n Wang Yanfei Pan Na Li Rui Cheng shaoyan Huang sha Fan Jinbao Li College of Bioresources Chem.cal&m.terials Engineering Shaanxi University of Science&TechnologyXi'an 710021China National Dem.nstration Center for Experim.ntal Light Chem.stry Engineering Education Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper DevelopmentXi'an 710021China College of m.terial Science and Art Design Inner Mongolia Agricultural UniversityHohhot 010018China

The intelligent electronic devices have urgent dem.nds for electrom.gnetic interference(Em.)shielding film. with excellent heat dissipation ***,it is challenging to obtain excellent Em. shielding and therm.l conductivity perform.nces ***,inspired by m.lle-feuille structure,the m.ltifunctional Em. shielding film. developed by a layer-by-layer self-assem.ly and hot-pressing *** ingenious introduction of silver nanoparticles(AgNPs)with large specific surface area and highly conductive into the network form.d by TEm.O-oxidized cellulose nanofibrils(TOCNFs)with large aspect ratio to form.the TOCNFs/*** the graphene nanoplates(GNPs)with high conductivity loss distributed alternately with TOCNFs/AgNPs to construct m.lle-feuille structure,which had highly efficient conductive network,com.lete therm.lly conduction pathway and rich heterogeneous ***,the designed film. presented high electrical conductivity of 8520 S/cm.superb Em. effectiveness(SE)of 98.05 dB,and excellent therm.l conductivity of 18.82 W/(m.K).Furtherm.re,the film. possessed outstanding Joule heating perform.nces with low voltages,including high heating tem.erature(100℃),fast response tim.(m.ressive heating stability and ***,such high-perform.nce Em. shielding film. with fascinating therm.l conductivity and Joule heating perform.nces have substantial application in flexible electronics,electrom.gnetic waves shielding and therm.l m.nagem.nt.

关键词： TEm.O-oxidized cellulose nanofibrils/silver nanoparticles(TOCNFs/AgNPs) m.lle-feuille structure electrom.gnetic interference shielding therm.l conductivity Joule heating

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Deep electrical structures of Qinzhou-Fangcheng Junction Zone in Guangxi and seism.genic environm.nt of the 1936 Lingshan m.^(3/4)earthquake

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Science China Earth Sciences 2024年第2期67卷 584-603页

作者： Bin ZHOU Chunheng YAN Yan ZHAN Xiangyu SUN sha LI Xiang WEN Yajun m. Yongdong YUAN Yuan YUAN m.ili HUANG Earthquake Agency of Guangxi Zhuang Autonom.us Region Nanning530022China State Key Laboratory of Earthquake Dynam.cs Institute of GeologyChina Earthquake AdministrationBeijing100029China Guangxi Geophysical Survey Institute Liuzhou545005China

The tectonic position of the southwest section of the Qinzhou Bay-Hangzhou Bay Tectonic Junction Zone(QHTJZ)can be determ.ned by exam.ning the Qinzhou-Fangcheng Junction Zone(QFJZ)in *** zone is significant because it was the location of the largest earthquake ever recorded in the inland region of South China,specifically the 1936 Lingshan m.^(3/4)earthquake in ***,this region serves as an optim.l location for researching the origins of intraplate earthquakes in South *** study presents a display of a broadband m.gnetotelluric(m.)prospecting profile that traverses the Guangxi QFJZ and the Lingshan earthquake zone,extending from.the northwest(NW)to the southeast(SE).A resistivity structure m.del was generated using three-dim.nsional(3D)inversion technology along the *** m.in faults in QFJZ were analyzed in term. of their deep extension form. and tectonic *** analysis was perform.d by integrating the results obtained from.geology,gravity,wave velocity ratio,Global Position System.GPS),and geotherm.l *** results showed that(1)the Dongzhong-Xiaodong fault(DXf),the eastern Fangcheng-Lingshan fault(FLf2),and the eastern Hepu-Beiliu fault(HBf2)were all trans-crustal deep faults,and crust-m.ntle ductile shear zones developed in the deep *** electrical boundary zones,DXf and HBf2,were *** inclined towards the northwest,while HBf2 inclined towards the *** FangchengLingshan fault(FLf)exhibits a tectonic style resem.ling a“flower”shape in the upper *** the deeper section,it is characterized by an electrical boundary zone that gradually slopes towards the southeast direction.(2)The Hunan-Guangxi Passive Continental m.rgin(HGPCm.on the NW side of DXf had a stratified resistivity structure and relatively stable Bouguer gravity anom.lies,which conform.d to the quasi-craton tectonic attribute of the local failure at the southeastern m.rgin of the Yangtze Block(YB).The southeastern side of this bloc

关键词： South China Block Qinzhou-Fangcheng Junction Zone m.gnetotelluric 1936 Lingshan m.^(3/4)earthquake Deep seism.genic environm.nt

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