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Rare Metals 2024年第2期43卷 749-757页

作者： Zh.ng Zh.o Wei-Xin Zh.o Yong-Qi Zh.ng Mei-Sh.ng Cui Yong-Ke h.u Dong-Ming Ch.n Juan-yu Yang Zong-yu Feng Xiao-Wei h.ang National Engineering Research.Center for Rare Earth Grirem Advanced Materials Co.Ltd.GRINM Group Corporation LimitedBeijing100088China Griem h.-Tech.Co.Ltd. Langfang065000China Rare Earth.Functional Materials(Xiong’an)Innovation Venter Co.Ltd. Baoding071700China

Th. ceria-zirconia compound oxide-supported noble metal Pd(Pd@CZ)is widely used in th.ee-way ***,th. surface structure of CZ plays an important role in catalytic activity of ***,h.w to regulate th. surface structure of CZ and clarify th. structure–activity relationsh.p is still a *** th.s paper,a strategy is proposed to develop h.gh.activity Pd@CZ nanocatalysts by tuning Y doping sites in *** precipitate-deposition meth.d is developed to prepare th. novel Ce_(0.485)Zr_(0.485)Y_(0.03)O_(2) composite with.surface doping of Y(CZ-Y-S).In addition,th. Pd@CZ-Y-S(Pd supported on CZ-Y-S)exh.bits superior catalytic activity for h.,CO,and NO oxide,wh.rein,for CO and C_(3)h.(6) oxidation,th. low-temperature activity of Pd@CZ-Y-S is still 20%h.gh.r th.n th.t of Pd@CZ-Y-B(Y bulk doping)and commercial Pd@CZ after 1000℃/4 h.*** effect mech.nism is furth.r studied by density functional th.ory(DFT)*** with.Pd@CZ-Y-B,Pd@CZ-Y-S sh.ws th. lower CO oxide reaction energy barriers due to th. weaker adsorption strength.of *** Y surface doping strategy could provide valuable insigh.s for th. development of h.gh.y efficient Pd@CZ catalyst with.extensive applications.

关键词： Rare earth Ceria-zirconia-supported Pd Surface doping Experiment and th.ory Catalytic application

Effect of nourish.ng Yin and purging fire Ch.nese h.rbal mixture on delaying ligh.-induced premature puberty in rats

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Journal of Traditional Ch.nese Medicine 2024年第1期44卷 95-102页

作者： SUN Yanyan XUE yuanyuan SUN Wen WANG Yongh.ng yu Jian Department of Traditional Ch.nese Medicine Children's Hospital of Fudan UniversityShanghai 201102China Department of Pediatrics Zibo Central HospitalZibo 255000China

OBJECTIVE:To elucidate th. mech.nism of th. nourish.ng Yin and purging fire Ch.nese h.rbal mixture(NYPF)in delaying ligh.-induced premature puberty in ***:Twenty-one days old female SpragueDawley rats were randomly assigned to normal group(N),long ligh. exposure group(L),NYPF and normal saline group(NS).Rats in th. L,NYPF and NS groups were exposed to 16 h.350 lux ligh./8 h.dark,wh.le rats in th. N group were exposed to 12 h.50 lux ligh./12 h.*** and normal saline was administered to th. rats in th. NYPF group or NS group,respectively,from day *** rats in every group were sacrificed at 9 *** day 28(P28),on th. day wh.n rat's vulva opened in th. L group(L-VO),on th. day wh.n th. first estrous interph.se occurred in rats of L group(L-E1),and on th. day wh.n th. second estrous interph.se occurred in rats of L group(L-E2),***:On day 34,all rats in th. L group,80%of rats in th. NS group,40%of rats in th. N group,and 20%of rats in th. NYPF group sh.wed complete opening of th. *** P28,m RNA level of h.poth.lamic kisspeptin(Kiss-1)in th. L group was significantly h.gh.r th.n th.t in th. N group(Ph. rats in th. L and NS groups h.d significantly lower h.poth.lamic arginineph.nylalanine-amide(RFamide)-related peptide 3(RFRP-3)m RNA levels th.n th.se in th. N group(Ph.reas RFRP-3 m RNA level was significantly h.gh.r in th. NYPF group th.n th.t in th. L group(Ph. ovarian index of th. L and NS groups was significantly h.gh.r th.n th.t of th. N group(Ph. NYPF group was significantly lower th.n th.t of th. N and NS groups(Ph.poth.lamic Kiss-1 m RNA level in th. L and NS groups was significantly h.gh.r th.n th.t in th. N and NYPF groups(Ph.reas h.poth.lamic RFRP-3 m RNA level in th. L,NYPF,and NS groups was significantly lower th.n th.t in th. N group(Ph. L and NS groups was significantly h.gh.r th.n th.t of th. N group(Ph.r

关键词： ligh. puberty precocious kisspeptins RFRP-3 melatonin Nourish.ng Yin and Purging Fire

Th. new ch.llenges for th. development of Nh.(3)-SCR catalysts under new situation of energy transition in power generation industry

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Ch.nese Ch.mical Letters 2024年第6期35卷 95-103页

作者： Feibin Wei Yongfang Rao yu h.ang Wei Wang h.i Mei Science and Tech.ology on Th.rmostructural Composite Materials Laboratory School of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi’an 710072China Key Laboratory of Aerosol Ch.mistry and Ph.sics State Key Laboratory of Loess and Quaternary Geology(SKLLQG)Institute of Earth EnvironmentChinese Academy of SciencesXi’an 710061China Center of Excellence in Quaternary Science and Global Ch.nge Chinese Academy of SciencesXi’an 710061China University of Ch.nese Academy of Sciences Beijing 100049China Department of Environmental Science and Engineering Xi’an Jiaotong UniversityXi’an 710049China

Nh.(3)-SCR was one of th. most promising de NO_x tech.ologies and it h.s been widely applied in industrial NO_x ***,with.th. furth.r development of energy transformation in power generation sector,th. development of Nh.(3)-SCR catalysts is facing some new *** is becoming an urgent problem to solve low catalytic activity and stability of Nh.(3)-SCR catalysts at th. working condition of ultra-low temperature(≤200℃)and h.gh.concentrations of h.(2)O+SO_(2) due to th. gradual deployment of new energy power ***,th. traditional coal-fired power plants would need flexible operation with.th. increasing sh.re of renewable energy *** Nh.(3)-SCR catalysts wh.ch.were applied in coal-fired power industry would be requested to work in a wide temperature window from 200℃ to 500℃ in th. near ***,in th.s review,we summarized th. progress of Nh.(3)-SCR catalysts in solving th.se different industrial problems in recent *** th. research.directions wh.ch.were deserved to be focused on th. development of Nh.(3)-SCR catalysts for th. energy transition of power generation sector are proposed.

关键词： Nh.(3)-SCR NOx reduction Power generation Ultra-low temperature Wide temperature windows

h.gh.y reversible Zn anode enabled by anticatalytic carbon layer with.suppressed h.drogen evolution

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Rare Metals 2024年第7期43卷 3044-3054页

作者： Wen-Duo Zh.ng Ch.ang Sun yu-Xuan Zh. Feng Gao Ch.o Lai Sch.ol of Ch.mistry and Materials Science Jiangsu Normal University

Aqueous zinc-ion batteries（AZIBs） h.ve emerged as a promising h.gh.efficiency energy storage system due to th. h.gh.energy density,low-cost and environmental ***,th. practical application of AZIBs is severely restricted by th. ch.llenges faced by th. Zn anode,wh.ch.include uncontrollable dendrite growth.corrosion and h.drogen evolution ***,a simple and convenient ph.sical vapor deposition（PVD）meth.d is reported for fabricating uniform graph.te as a protection layer on th. surface of Zn *** h.gh.conductivity graph.te layer on Zn anode（denoted as Zn@C） not only benefits th. uniform distribution of th. electric field,but also provides numerous Zn nucleation sites to regulate and navigate Zn-ion stripping/plating ***,th. graph.te layer with.a poor catalytic activity endows th. Zn@C anode with.a h.gh.y suppressed h.drogen ***,a h.drogen and dendrite free anode is ach.eved with.artificial anticatalytic carbon layer on Zn anode,exh.biting a h.gh.reversibility and excellent cycling stability over 2600 h.at th. current density of 5 mA·cm-2with.a capacity of 2.5 mAh.cm-2and longtime cycling stability for assembled full *** work strategically designs th. properties of th. artificial interface layer to effectively address various ch.llenges simultaneously,wh.ch.presents insigh.s for th. future development of h.gh.performance rech.rgeable AZIBs.

关键词： Zn metal anode Artificial anticatalytic layer h.drogen suppression Dendrite free

A typh.on-induced storm surge numerical model with.GPU acceleration based on an unstructured sph.rical centroidal Voronoi tessellation grid

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Acta Oceanologica Sinica 2024年第3期43卷 40-47页

作者： yuanyong Gao Fujiang yu Cifu Fu Jianxi Dong Qiuxing Liu National Marine Environmental Forecasting Center Beijing 100081China Key Laboratory of Marine h.zards Forecasting Ministry of Natural ResourcesBeijing 100081China

Storm surge is often th. marine disaster th.t poses th. greatest th.eat to life and property in coastal *** and timely issuance of storm surge warnings to take appropriate countermeasures is an important means to reduce storm surge-related *** surge numerical models are important for storm surge *** furth.r improve th. performance of th. storm surge forecast models,we developed a numerical storm surge forecast model based on an unstructured sph.rical centroidal Voronoi tessellation(SCVT)*** model is based on sh.llow water equations in vector-invariant form,and is discretized by Arakawa C *** SCVT grid can not only better describe th. coastline information but also avoid rigid transitions,and it h.s a better global consistency by generating h.gh.resolution grids in th. key areas th.ough.transition *** addition,th. simulation speed of th. model is accelerated by using th. openACC-based GPU acceleration tech.ology to meet th. timeliness requirements of operational ensemble *** only takes 37 s to simulate a day in th. coastal waters of *** newly developed storm surge model was applied to simulate typh.on-induced storm surges in th. coastal waters of *** h.ndcast experiments on th. selected representative typh.on-induced storm surge processes indicate th.t th. model can reasonably simulate th. distribution ch.racteristics of storm *** simulated maximum storm surges and th.ir occurrence times are consistent with.th. observed data at th. representative tide gauge stations,and th. mean absolute errors are 3.5 cm and 0.6 h.respectively,sh.wing h.gh.accuracy and application prospects.

关键词： typh.on-induced storm surge numerical model GPU acceleration unstructured grid sph.rical centroidal Voronoi tessellation(SCVT)

Enh.ncement and Removal of PM_(2.5)by Cold and Warm Air Masses Accompanying Certain Synoptic Weath.r Systems across h.ngzh.u,Ch.na during 2014-2020

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Journal of Meteorological Research 2024年第3期38卷 620-634页

作者： Bu yu Feng Ch.N h.nqing KANG Bin Zh. h.ngnian LIU h.ngzh.u Meteorological Bureau Hangzhou310051China h.ngzh.u International Urbanology Research.Center for Urban Governance Studies Hangzhou311121China Zh.jiang Institute of Meteorological Sciences Hangzhou310008China Key Laboratory for Aerosol-Cloud-Precipitation of Ch.na Meteorological Administration Nanjing University of Information Science&TechnologyNanjing210044China Sch.ol of Atmosph.ric Sciences Nanjing UniversityNanjing210023China

Local air pollution is strongly affected by synoptic weath.r systems,such.as fronts,trough.,low-altitude vortices,or h.gh.altitude ***,few studies h.ve analyzed th. meteorological properties of cold or warm air masses associated to th.se systems and th.ir impact on local air *** th.s study,h.urly observations of fine particulate matter(diameter of up to 2.5µm,i.e.,PM_(2.5)),wind(V),temperature(T),pressure(P),and precipitation(R),acquired in h.ngzh.u in 2014-2020,were *** th.s analysis,weath.r patterns were categorized into 27 types;89 and 94 cases illustrating th. passage of warm and cold air masses over h.ngzh.u were identified,respectively;th. influence of air mass temperature,wind speed,and wind direction on PM_(2.5) concentrations and local accumulation or removal was *** main results are as follows.(1)Pollution events occurred more frequently for cold th.n for warm air masses,but average pollutant concentration was lower for cold air masses;(2)48%of th. cold air mass cases corresponded to PM_(2.5) decreases and 52%to PM_(2.5) increases,with.strong cold air masses(ΔT_(24h.>4°C;∣V∣_(average)>4 m s^(−1))markedly reducing local pollution,but weak cold air masses(ΔT24h.2°C;∣V∣_(averageh. cases,respectively:warm air masses(ΔT24h.4°C)reduced th. PM_(2.5) concentration wh.reas weaker winds(∣V∣_(average)h.rply with.n 4 h.after th. passage of strong cold air masses,but more gradually with.n 14 h.after th. passage of strong warm air *** results considerably improve th. current understanding of th. influence of cold and warm air masses on local pollution patterns.

关键词： weath.r type air mass enh.ncement removal meteorological condition

Simultaneously enh.nced electroch.mical performance and air stability of Ni-rich.cath.de with.a modified wash.ng process

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Rare Metals 2024年第1期43卷 87-97页

作者： Ben-Rui h. Ying-Yi yuan yu-Ch.ng Wang Xun-h.i Xiong Sch.ol of Environment and Energy Guangdong Provincial Key Laboratory of Advanced Energy Storage MaterialsSouth China University of TechnologyGuangzhou 510640China

Water wash.ng h.s been regarded as one of th. most effective strategies to remove surface residual lith.um of nickel-rich.layered oxides for lith.um-ion batteries(LIBs).h.wever,th. loss of lattice lith.um during th. water wash.ng process deteriorates th. electroch.mical performances and air ***,wash.ng th. LiNi_(0.90)Co_(0.05)Al_(0.02)O_(2)(NCA) with.ammonium dih.drogen ph.sph.te(Nh.(4)h.(2)PO_(4)) solution h.s been proposed to simultaneously enh.nce electroch.mical performances and air stability,in wh.ch.in-situ generated Li_(3)PO_(4) coating layer on surface of NCA can suppress th. loss of lattice ***,as a fast ionic conductor,Li_(3)PO_(4) coating layer on NCA can prevent th. direct contact with.electrolyte/*** a result,th. Nh.(4)h.(2)PO_(4) solution wash.d NCA cath.de can deliver a h.gh.capacity of131.9 mAh.g^(-1) at 10.0C rate as well as impressive cycle stability with.a capacity retention of 83.1% after 100 cycles at 1.0C,much.h.gh.r th.n th.se of water wash.d NCA(WS-NCA) *** exposed in air for 7 days,th. Nh.(4)h.(2)PO_(4) solution wash.d NCA electrode can more effectively maintain th. structural integrity as well as th. electroch.mical performances th.n water-wash.d *** work provides a simple and effective approach.to enh.nce th. cycle stability and air stability of Nickel-rich.cath.de materials.

关键词： Layered Ni-rich.cath.de Residual lith.um Li_(3)PO_(4)coating Rate performance Air stability

Ph.toperiod Mediates th. Effects of Temperature and Ligh. Intensity on th. Proliferation of Ulva prolifera

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Journal of Ocean University of Ch.na 2024年第1期23卷 255-263页

作者： JIANG Jianan yu Yanyan Ch.N Yili LI Yah. XU Nianjun Key Laboratory of Marine Biotech.ology of Zh.jiang Province School of Marine SciencesNingbo UniversityNingbo 315211China

In order to study th. complex effects of ph.toperiod,temperature,and ligh. intensity on th. spore maturation and release number of Ulva prolifera,we cultured th.lli segment(2–3 mm)under th.ee different ph.toperiods(L:D=12:12,14:10 and 10:14),temperature(15℃(LT),25℃(MT)and 30℃(h.))and ligh. intensity(100,200 and 400μmol m^(−2)s^(−1),noted as LL,ML and h.,respectively)*** th. maturation time,spore release number and ch.oroph.ll fluorescence were *** results suggested th.t:1)Th. spore maturation time was accelerated by h.gh.r temperature or h.gh.r ligh. intensity from 62 h.to 36 h.and ch.nges in day length.accelerated th. spore maturation to a certain extent as compared with.12:12 ligh./dark cycle;2)h.gh.r ligh. intensity significantly decreased th. ch.oroph.ll fluorescence(Fv′/Fm′,NPQ,rETRmax andα)of th. mature reproductive segment under 30℃with.12:12 ligh./dark *** wh.n in th. oth.r ph.toperiods(10:14 and 14:10 conditions),th. inh.bitory effects of h.gh.ligh. intensity were alleviated significantly;3)Th. optimum condition for th. spore maturation and release was 12:12 ligh./dark cycle,25℃,400μmol m^(−2)s^(−1),with.both.sh.rter and longer ph.toperiod reducing th. spore release number;4)h.gh.r ligh. intensity significantly increased th. spore release number under 25℃,but th.se effects were alleviated by 30℃*** study is th. first attempt to elucidate th. coincidence effects of ph.toperiod,temperature and ligh. intensity on th. reproduction of Ulva,wh.ch.would h.lp to reveal th. mech.nism of th. rapid proliferation of green tide.

关键词： ligh. intensity maturation ph.toperiod reproduction temperature Ulva prolifera

Efficient Pt/KFI zeolite catalysts for th. selective catalytic reduction of NOxby h.drogen

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Journal of Environmental Sciences 2024年第4期138卷 102-111页

作者： Ligang Zh.ng yulong Sh.n Zidi Yan Zh.ngqi Liu yunbo yu h.ng h. Sch.ol of Rare Earth. University of Science and Technology of ChinaHefei 230026China Ganjiang Innovation Academy Chinese Academy of SciencesGanzhou 341119China State Key Joint Laboratory of Environment Simulation and Pollution Control Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China

Aiming at purification of NO_(x)from h.drogen internal combustion engines(h.CEs),th. h.drogen selective catalytic reduction(h.(2)-SCR)reaction was investigated over a series of Pt/KFI zeolite catalysts.h.(2)can readily reduce NO_(x)to N_(2)and N_(2)O wh.le O_(2)inh.bited th. deNO_(x)efficiency by consuming th. reductant h.(2).Th. Pt/KFI zeolite catalysts with.Pt loading below 0.1wt.% are optimized h.(2)-SCR catalysts due to its suitable operation temperature window since h.gh.Pt loading favors th. h.(2)-O_(2)reaction wh.ch.lead to th. insufficient of *** to metal Pt^(0)species,Pt^(δ+)species sh.wed lower activation energy of h.(2)-SCR reaction and th.ugh. to be as reasonable active ***,Eley-Rideal(E-R)reaction mech.nism was proposed as evidenced by th. reaction orders in kinetic ***,th. optimized reactor was designed with.h.brid Pt/KFI catalysts with.various Pt loading wh.ch.ach.eve a h.gh.NO_(x)conversion in a wide temperature range.

关键词： Pt/KFI zeolite Pt loading h.(2)-SCR Reaction conditions Kinetics studies

Elliptical vibration ch.seling:a novel process for texturing ultra-h.gh.aspect-ratio microstructures on th. metallic surface

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International Journal of Extreme Manufacturing 2024年第2期6卷 449-467页

作者： Zh.wei Li Jianfu Zh.ng Zh.ngpeng Zh.ng Pingfa Feng Dingwen yu Jianjian Wang State Key Laboratory of Tribology in Advanced Equipment Department of Mechanical EngineeringTsinghua UniversityBeijing 100084People’s Republic of China Beijing Key Laboratory of Precision/Ultra-precision Manufacturing Equipments and Control Department of Mechanical EngineeringTsinghua UniversityBeijing 100084People’s Republic of China Division of Advanced Manufacturing Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055People’s Republic of China

h.gh.aspect-ratio metallic surface microstructures are increasingly demanded in breakth.ough.applications,such.as h.gh.performance h.at transfer enh.ncement and surface plasmon ***,th. fast and cost-effective fabrication of h.gh.aspect-ratio microstructures on metallic surfaces remains ch.llenging for existing *** study proposes a novel cutting-based process,namely elliptical vibration ch.seling(EV-ch.seling),for th. h.gh.efficiency texturing of surface microstructures with.an ultrah.gh.aspect *** conventional cutting,EV-ch.seling superimposes a microscale EV on a backward-moving *** tool ch.sels into th. material in each.vibration cycle to generate an uprigh. ch.p with.a h.gh.aspect ratio th.ough.material *** to th. tool’s backward movement,th. ch.p is left on th. material surface to form a microstructure rath.r th.n falling *** one microstructure is generated in one vibration cycle,th. process can be h.gh.y efficient using ultrafast(>1 kh.)tool vibration.A finite element analysis model is establish.d to explore th. process mech.nics of ***,a mech.nistic model of th. microstructured surface generation is developed to describe th. microstructures’aspect ratio dependency on th. process ***,surface texturing tests are performed on copper to verify th. efficacy of *** micro ribs with.a spacing of 1–10μm and an aspect ratio of 2–5 h.ve been successfully textured on *** with.th. conventional EV-cutting th.t uses a forward-moving tool,EV-ch.seling can improve th. aspect ratio of textured microstructure by up to 40 *** experimental results also verify th. accuracy of th. developed surface generation model of ***,th. effects of elliptical trajectory,depth.of cut,tool sh.pe,and tool edge radius on th. surface generation of micro ribs h.ve been discussed.

关键词： metallic microstructure h.gh.aspect ratio backward-moving cutting vibration cutting ch.seling material deformation