检索结果-南通市图书馆

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

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

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

Facile low-temperature supercritical carbonization meth.d to prepare h.gh.loading nickel single atom catalysts for efficient ph.todegradation of tetracycline

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2024年第4期138卷 373-384页

作者： h.n Qiao Lirong Zh.ng Sh.wen h. Gang Tang h.ngri Suo Ch.ngxuan Liu Sch.ol of Environment Harbin Institute of TechnologyHarbin 150090China State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control School of Environmental Science and EngineeringSouthern University of Science and TechnologyShenzhen 518055China Beijing Synch.otron Radiation Facility(BSRF) Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China

Environmental ph.tocatalysis is a promising tech.ology for treating antibiotics in *** th.s study,a supercritical carbonization meth.d was developed to synth.size a single-atom ph.tocatalyst with.a h.gh.loading of Ni(above 5 wt.%)anch.red on a carbonnitrogen-silicate substrate for th. efficient ph.todegradation of a ubiquitous environmental contaminant of tetracycline(TC).Th. ph.tocatalyst was prepared from an easily obtained metal-biopolymer-inorganic supramolecular h.drogel,followed by supercritical drying and carbonization *** low-temperature(300℃)supercritical eth.nol treatment prevents th. excessive structural degradation of h.drogel and greatly reduces th. metal clustering and aggregation,wh.ch.contributed to th. h.gh.Ni *** ch.racterizations confirmed th.t Ni was present at isolated sites and stabilized by Ni-N and Ni-O bonds in a Ni-(N/O)_(6)-C/SiC configuration.A 5%Ni-C-Si catalyst,wh.ch.performed th. best among th. studied catalysts,exh.bited a wide visible ligh. response with.a narrow bandgap of 1.45 eV th.t could efficiently and repeatedly catalyze th. oxidation of TC with.a conversion rate of almost 100% with.n 40 *** reactive species trapping experiments and electron spin resonance(ESR)tests demonstrated th.t th. h.,and·O_(2)-were mainly responsible for TC *** TC degradation mech.nism and possible reaction path.ays were provided ***,th.s study proposed a novel strategy to synth.size a h.gh.metal loading singleatom ph.tocatalyst th.t can efficiently remove TC with.h.gh.concentrations,and th.s strategy migh. be extended for synth.sis of oth.r carbon-based single-atom catalysts with.valuable properties.

关键词： Carbon-based single-atom catalyst Nickel Ph.tocatalytic degradation Tetracycline Visible ligh.

Synergically regulated silver species and surface oxygen on manganese oxide for promoted activity of formaldeh.de oxidation

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2024年第4期138卷 709-718页

作者： Sh.o h. Jiangh.o Zh.ng Xueyan Ch.n Xiaoxiao Qin Jinsh.i Yao Ch.ngbin Zh.ng Sch.ol of Materials Science&Engineering Qilu University of Technology(Shandong Academy of Sciences)Jinan 250353China State Key Joint Laboratory of Environment Simulation and Pollution Control Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China University of Ch.nese Academy of Sciences Beijing 100049China

Formaldeh.de(h.h.)is a common indoor pollutant th.t is detrimental to h.man *** efficient removal h.s become an urgent demand to reduce th. public h.alth.*** th.s work,Ag-MnO_(x)-based catalysts were prepared and activated under different atmosph.re(i.e.,air,h.drogen(h.(2))and carbon monoxide(CO))for efficient oxidation of *** catalyst activated with.CO(Ag/Mn-CO)displayed th. h.gh.st activity among th. tested samples with.90% conversion at 100℃ under a gas space velocity of 75,000 mL/(g_(cat)·h.).Complementary ch.racterizations demonstrate th.t CO reduction treatment resulted in synergically regulated content of surface oxygen on support to adsorb/activate h.h. and size of Ag particle to dissociate oxygen to oxidize th. adsorbed *** contrast,oth.r catalysts lack for eith.r abundant surface oxygen species or metallic silver with.th. appropriate particle size,so th.t th. integrate activity is limited by one specific reaction *** study contributes to elucidating th. mech.nisms regulating th. oxidation activity of Ag-based catalysts.

关键词： h.h. oxidation Ag-MnO_(x)-based catalyst Activation condition Synergic regulation Surface oxygen Oxidized Ag

Soil properties and not plant factors affect both.abundant and rare microbial taxa after th.nning in a mixed stand of Cunningh.mia lanceolata and Sassafras tzumu

在线全文

学校读者我要写书评

暂无评论

Journal of Forestry Research 2024年第2期35卷 81-94页

作者： Wanxia Peng Tongqing Song h. Du Feng Wang Fuping Zeng Yang Wang Sh.lin Ch.n Yinzh. Ch.n Key Laboratory of Agro‑Ecological Processes in Subtropical Region Institute of Subtropical AgricultureChinese Academy of SciencesChangsha 410125People’s Republic of China Guangxi Industrial Tech.ology Research.Institute for Karst Desertification Control Nanning 530001People’s Republic of China h.anjiang Observation and Research.Station for Karst Ecosystems Institute of Subtropical AgricultureChinese Academy of SciencesChangsha 410125People’s Republic of China h.bei Ecology Polytech.ic College Wuhan 430200People’s Republic of China h.bei Tongsh.n Damush.n State Forest Farm Tongshan 437652People’s Republic of China

Th.nning is an effective management step for sustainable forest development,yet less attention is paid to th. restoration of soil microbiota after *** th.s study,both.abundant and rare soil microbial communities(i.e.,bacterial,fungal),were evaluated under various th.nning treatments in a mixed stand of Cunningh.mia lanceolata and Sassafras tzumu using Mi Seq *** did not significantly ch.nge eith.r abundant or rare bacterial and fungal community composition,but affected th.ir alph. *** Sh.nnon–Wiener indexes of rare fungal taxa under medium th.nning were significantly lower th.n in th. ligh. th.nning(Ph.bacteraceae dominated th. abundant bacterial taxa,and Saitozyma and Mortierlla th. abundant fungal *** most common rare bacterial taxa varied;th.re was no prevalent rare fungal taxa under different *** addition,soil available nitrogen,total ph.sph.rus,and p h.h.d significant effects on rare bacterial ***,especially available ph.sph.rus,but not nitrogen,affected abundant and rare soil *** results indicate th.t soil properties rath.r th.n plant factors affect abundant and rare microbial communities in soils of mixed ***,th.ough.mediating soil properties,influences both.abundant and rare bacterial and fungal communities in th. mixed *** and *** stand.

关键词： Diversity Abundant taxa Rare taxa Th.nning Mixed stand

A Tutorial Review of th. Solar Power Curve: Regressions, Model Ch.ins, and Th.ir h.bridization and Probabilistic Extensions

在线全文

学校读者我要写书评

暂无评论

Advances in Atmosph.ric Sciences 2024年第6期41卷 1023-1067页

作者： Dazh. YANG Xiang’ao XIA martin János MAYER Sch.ol of Electrical Engineering and Automation Harbin Institute of TechnologyHarbin 150001HeilongjiangChina Key Laboratory for Middle Atmosph.re and Global Environment Observation(LAGEO) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Department of Energy Engineering Faculty of Mechanical EngineeringBudapest University of Technology and EconomicsMűegyetem rkp.3Budapest H-1111Hungary

Owing to th. persisting h.pe in push.ng toward global carbon neutrality,th. study scope of atmosph.ric science is rapidly *** numerous trending topics,energy meteorology h.s been attracting th. most attention *** essential skill of solar energy meteorologists is solar power curve modeling,wh.ch.seeks to map irradiance and auxiliary weath.r variables to solar power,by statistical and/or ph.sical *** th.s regard,th.s tutorial review aims to deliver a complete overview of th.se fundamental scientific and engineering principles pertaining to th. solar power *** power curves can be modeled in two primary ways,one of regression and th. oth.r of model *** classes of modeling approach.s,alongside th.ir h.bridization and probabilistic extensions,wh.ch.allow accuracy improvement and uncertainty quantification,are scrutinized and contrasted th.rough.y in th.s review.

关键词： review energy meteorology solar power curve model ch.in solar power prediction

Crosstalk between RNA m^(6)A modification and epigenetic factors in plant gene regulation

在线全文

学校读者我要写书评

暂无评论

Plant Communications 2024年第10期5卷 45-58页

作者： Jianzh.ng h. Tao Xu h.nseung Kang Guangdong Provincial Key Laboratory for Plant Epigenetics Longhua Bioindustry and Innovation Research InstituteCollege of Life Sciences and OceanographyShenzhen UniversityShenzhenGuangdong 518060China Jiangsu Key Laboratory of Genomics School of Life SciencesJiangsu Normal UniversityXuzhouJiangsu Province 221116China Department of Applied Biology College of Agriculture and Life SciencesChonnam National UniversityGwangju 61186Korea

N^(6)-meth.ladenosine(m^(6)A)is th. most abundant modification observed in eukaryotic *** in transcriptome-wide m^(6)A mapping and sequencing tech.ologies h.ve enabled th. identification of several conserved motifs in plants,including th. RRACh.R=A/G and h.A/C/U)and UGUAW(W=U or A)***,th. mech.nisms underlying deposition of m^(6)A marks at specific positions in th. conserved motifs of individual transcripts remain to be *** from plant and animal studies suggests th.t m^(6)A writer or eraser components are recruited to specific genomic loci th.ough.interactions with.particular transcription factors,5-meth.lcytosine DNA meth.lation marks,and h.stone *** addition,recent studies in animal cells h.ve sh.wn th.t microRNAs play a role in depositing m^(6)A marks at specific sites in transcripts th.ough.a base-pairing mech.nism.m^(6)A also affects th. biogenesis and function of ch.omatin-associated regulatory RNAs and long noncoding *** we h.ve less of an understanding of th. link between m^(6)A modification and epigenetic factors in plants th.n in animals,recent progress in identifying th. proteins th.t interact with.m^(6)A writer or eraser components h.s provided insigh.s into th. crosstalk between m^(6)A modification and epigenetic factors,wh.ch.plays a crucial role in transcript-specific meth.lation and regulation of m^(6)A in plants.

关键词： RNA meth.lation DNA meth.lation h.stone modification epigenetics microRNA long noncoding RNA

Ultra-efficient and parameter-free computation of submicron th.rmal transport with.ph.non Boltzmann transport equation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Fundamental Research 2024年第4期4卷 907-915页

作者： Yue h. Yongxing Sh.n h.a Bao University of Mich.gan-Sh.ngh.i Jiao Tong University Joint Institute Shanghai Jiao Tong UniversityShanghai 200240China

Understanding th.rmal transport at th. submicron scale is crucial for engineering applications,especially in th. th.rmal management of electronics and tailoring th. th.rmal conductivity of th.rmoelectric *** th. submicron scale,th. macroscopic h.at diffusion equation is no longer valid and th. ph.non Boltzmann transport equation(BTE)becomes th. governing equation for th.rmal ***,previous th.rmal simulations based on th. ph.non BTE h.ve two main limitations:relying on empirical parameters and proh.bitive computational ***,th. ph.non BTE is commonly used for qualitatively studying th. non-Fourier th.rmal transport ph.nomena of toy *** th.s work,we demonstrate an ultra-efficient and parameter-free computational meth.d of th. ph.non BTE to ach.eve quantitatively accurate th.rmal simulation for realistic materials and *** properly integrating th. ph.non properties from first-principles calculations,our meth.d does not rely on empirical material properties *** can be generally applicable for different materials and th. predicted results can match.well with.experimental ***,by developing a suitable ensemble of advanced numerical algorith.s,our meth.d exh.bits superior numerical *** full-scale(from ballistic to diffusive)th.rmal simulation of a 3-dimensional fin field-effect transistor with.13 million degrees of freedom,wh.ch.is proh.bitive for existing ph.non BTE solvers even on supercomputers,can now be completed with.n two h.urs on a single personal *** meth.d makes it possible to ach.eve th. predictive design of realistic nanostructures for th. desired th.rmal *** also enables accurately resolving th. temperature profiles at th. transistor level,wh.ch.h.lps in better understanding th. self-h.ating effect of electronics.

关键词： Submicron th.rmal transport Boltzmann transport equation Deterministic numerical meth.d Ph.non transport Transistors Nanostructured materials

Enh.ncing th. activity and succinyl-CoA specificity of 3-ketoacyl-CoA th.olase Tfu_0875 th.ough.rational binding pocket engineering

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Synth.tic and Systems Biotech.ology 2024年第3期9卷 558-568页

作者： Lixia Liu Sh.ang Liu Xiangyang h. Sh.ngh. Zh.u Yu Deng National Engineering Research.Center of Cereal Fermentation and Food Biomanufacturing Jiangnan University1800 Lihu RoadWuxiJiangsu214122China Jiangsu Provincial Research.Center for Bioactive Product Processing Tech.ology Jiangnan University1800 Lihu RoadWuxiJiangsu214122China

Th. 3-ketoacyl-CoA th.olase is th. rate-limiting enzyme for linear dicarboxylic acids ***,th. promiscuous substrate specificity and suboptimal catalytic performance h.ve restricted its *** we present both.bioch.mical and structural analyses of a h.gh.efficiency 3-ketoacyl-CoA th.olase Tfu_***,Tfu_0875 displayed h.igh.ened activity and substrate specificity for succinyl-CoA,a key precursor in adipic acid *** enh.nce its performance,a deep learning approach.DLKcat)was employed to identify effective mutants,and a computational strategy,known as th. greedy accumulated strategy for protein engineering(GRAPE),was used to accumulate th.se effective *** th. mutants,Tfu_0875N249W/L163h.E217L exh.bited th. h.gh.st specific activity(320%of wild-type Tfu_0875),th. greatest catalytic efficiency(kcat/KM=1.00 min-1mM-1),th. h.gh.st succinyl-CoA specificity(KM=0.59 mM,28.1%of Tfu_0875)and dramatically reduced substrate binding energy(-30.25 kcal mol^(-1)v.s.-15.94 kcal mol^(-1)).A structural comparison between Tfu_0875N249W/L163h.E217L and th. wild type Tfu_0875 revealed th.t th. increased interaction between th. enzyme and succinyl-CoA was th. primary reason for th. enh.nced enzyme *** interaction facilitated rapid substrate anch.ring and ***,a reduced binding pocket volume improved substrate specificity by enh.ncing th. complementarity between th. binding pocket and th. substrate in stereo ***,our rationally designed mutant,Tfu_0875N249W/L163h.E217L,increased th. adipic acid titer by 1.35-fold compared to th. wild type Tfu_0875 in sh.ke *** demonstrated enzymatic meth.ds provide a promising enzyme variant for th. adipic acid *** above effective substrate binding pocket engineering strategy can be beneficial for th. production of oth.r industrially competitive biobased ch.micals wh.n be applied to oth.r th.olases.

关键词： Adipic acid 3-Ketoacyl-CoA th.olase Claisen condensation Deep learning GRAPE strategy

Laser-Constructing 3D Copper Current Collector with.Crystalline Orientation Selectivity for Stable Lith.um Metal Batteries

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Energy & Environmental Materials 2024年第6期7卷 129-139页

作者： h.i Li Gang Wang Jin h. Jun Li Jiaxu h.ang Sh.olin Xu Department of Mech.nical and Energy Engineering Southern University of Science and TechnologyShenzhen 518000China

Th. practical application of lith.um(Li)metal anodes in h.gh.capacity batteries is impeded by th. formation of h.zardous Li *** address th.s ch.llenge,th.s research.presents a novel meth.dology th.t combines laser ablation and h.at treatment to precisely induce controlled grain growth.with.n laser-structured grooves on copper(Cu)current ***,th.s approach.enh.nces th. prevalence of Cu(100)facets with.n th. grooves,effectively lowering th. overpotential for Li nucleation and promoting preferential Li *** approach.s th.t modify th. entire surface of collectors,our work focuses on selectively enh.ncing lith.oph.licity with.n th. grooves to mitigate th. formation of Li dendrites and exh.bit exceptional performance *** h.lf-cell with.th.se collectors maintains a remarkable Coulombic efficiency of 97.42%over 350 cycles at 1 mA cm^(−2).Th. symmetric cell can cycle stably for 1600 h.at 0.5 mA cm^(−2).Furth.rmore,wh.n integrated with.LiFePO4 cath.des,th. full-cell configuration demonstrates outstanding capacity retention of 92.39%after 400 cycles at a 1C disch.rge *** study introduces a novel tech.ique for fabricating selective lith.oph.lic th.ee-dimensional(3D)Cu current collectors,th.reby enh.ncing th. performance of Li metal *** insigh.s gained from th.s approach.h.ld promise for enh.ncing th. performance of all laser-processed 3D Cu current collectors by enabling precise lith.oph.lic modifications with.n complex structures.

关键词： copper current collector h.at treatment laser processing lith.um metal battery selective crystalline orientation