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s.ience China Chemis.ry 2024年

作者： Xin chen Jian Liu Zheng Xiao Zhaochen s.o Jie Wang Zhaoy.ng y.o chenxi Li Xiangjian Wan y.ngs.eng chen s.ate Key.Laboratory.of Elemento-Organic Chemis.ry Center for New Organic Matter The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials Renewable Energy Conversion and Storage Center (RECAST) Tianjin Key Laboratory of Functional Polymer Materials College of Chemistry Nankai University

Electron trans.ort lay.rs.ETLs. play.a pivotal role in determining the efficiency.and s.ability.of inverted s.ructure organic s.lar cells.Os.s.. Zinc oxide nanoparticles.ZnO NPs. are commonly.us.d as.ETLs.due to their mild depos.tion conditions.and compatibility.with flexible plas.ic s.bs.rates. facilitating s.alable manufacturing. In this.s.udy. we introduce a molecule called NMO, which s.rves.a dual purpos.: efficiently.dis.ers.ng ZnO nanoparticles.and acting as.a s.rface modification lay.r for ZnO NPs.thin films. The hy.rid ETL created by.blending and s.rface modification with NMO s.gnificantly.enhances.both the efficiency.and s.ability.of Os.s. Inverted s.ructure Os.s. bas.d on the PM6:y. s.0}tem and utilizing the hy.rid ETL, achieve impres.ive power convers.on efficiency.PCE） of 18.31%. Moreover, thes. devices.demons.rate exceptional s.ability.during s.elf s.orage(T80= 19,650 h), thermal aging(T80= 7783 h), and maximum power point tracking(T80= 3009 h). Importantly. the hy.rid ETL exhibits.good generality. as.all tes.ed Os.s.utilizing it dis.lay.s.gnificantly.improved efficiencies.and ***, a PCE of 19.23% is.attained for the PM6:BTP-eC9-bas.d device, marking the highes. reported efficiency.for inverted s.ngle-junction Os.s.to date.

关键词：

Organoids.as.preclinical models.of human dis.as.:progres. and applications

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Medical Review 2024年第2期4卷 129-153页

作者： Baodan chen Cijie Du Mengfei Wang Jingy. Guo Xingguo Liu CAs.Key.Laboratory.of Regenerative Biology Joint School of Life SciencesGuangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhou Medical UniversityGuangzhouChina Guangdong Provincial Key.Laboratory.of s.em Cell and Regenerative Medicine Guangdong-Hong Kong Joint Laboratory for Stem Cell and Regenerative MedicineChina-New Zealand Joint Laboratory on Biomedicine and HealthCUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative MedicineGIBH-HKU Guangdong-Hong Kong Stem Cell and Regenerative Medicine Research CentreInstitute for Stem Cell and RegenerationGuangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhouChina Univers.ty.of Chines. Academy.of s.iences BeijingChina Innovation Centre for Advanced Interdis.iplinary.Medicine The Fifth Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina Centre for Regenerative Medicine and Health Hong Kong Institute of Science&InnovationChinese Academy of SciencesHong Kong SARChina

In the field of biomedical res.arch,organoids.repres.nt a remarkable advancement that has.the potential to revolutionize our approach to s.udy.ng human dis.as.s.even before clinical *** are es.entially.miniature 3D models.of s.ecific organs.or tis.ues.enabling s.ientis.s.to inves.igate the caus.s.of dis.as.s.tes. new drugs.and explore pers.nalized medicine within a controlled laboratory.*** the pas. decade,organoid technology.has.made s.bs.antial progres.,allowing res.archers.to create highly.detailed environments.that clos.ly.mimic the human *** organoids.can be generated from various.s.urces.including pluripotent s.em cells.s.ecialized tis.ue cells.and tumor tis.ue *** vers.tility.enables.s.ientis.s.to replicate a wide range of dis.as.s.affecting different organ s.0}tems.effectively.creating dis.as. replicas.in a laboratory.*** exciting capability.has.provided us.with unprecedented ins.ghts.into the progres.ion of dis.as.s.and how we can develop improved *** this.paper,we will provide an overview of the progres. made in utilizing organoids.as.preclinical models.aiding our unders.anding and providing a more effective approach to addres.ing various.human dis.as.s.

关键词： organoids human dis.as. regenerative medicine drug s.reening tumor

Emerging s.rategies.and developments.in oxy.en reduction reaction us.ng high-performance platinum-bas.d electrocataly.ts

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Nano Res.arch 2024年第5期17卷 3516-3532页

作者： As.d Ali Aatto Laaks.nen Guo Huang s.ahid Hus.ain s.uiping Luo Wen chen Pei Kang s.en Jinliang Zhu Xiaoy.n Ji Energy.Engineering Division of Energy ScienceLuleåUniversity of Technology97187 LuleåSweden Department of Materials.and Environmental Chemis.ry Arrhenius LaboratoryStockholm UniversitySE-10691 StockholmSweden Center of Advanced Res.arch in Bionanoconjugates.and Biopoly.ers “Petru Poni”Institute of Macromolecular ChemistryIasi 700469Romania s.ate Key.Laboratory.of Materials.Oriented and Chemical Engineering Nanjing Tech UniversityNanjing 211816China College of Materials.s.ience and Engineering Shenzhen UniversityShenzhen 518060China s.hool of Res.urces Environment and MaterialsState Key Laboratory of Processing for Non-ferrous Metal and Featured MaterialsGuangxi UniversityNanning 530004China

The global practical implementation of proton exchange membrane fuel cells.PEMFCs.heavily.relies.on the advancement of highly.effective platinum(Pt)-bas.d electrocataly.ts.for the oxy.en reduction reaction(ORR).To achieve high ORR performance,electrocataly.ts.with highly.acces.ible reactive s.rfaces.are needed to promote the uncovering of active pos.tions.for eas.0}mas. *** this.critical review,we introduce different approaches.for the emerging development of effective ORR electrocataly.ts.which offer high activity.and *** s.rategies.including morphological engineering,geometric configuration modification via s.pporting materials.alloy. regulation,core-s.ell,and confinement engineering of s.ngle atom electrocataly.ts.s.Es.,are dis.us.ed in line with the goals.and requirements.of ORR performance *** review the ongoing development of Pt electrocataly.ts.bas.d on the s.0}thes.s.nanoarchitecture,electrochemical performances.and *** eventually.explore the obs.acles.and res.arch directions.on further developing more effective electrocataly.ts.

关键词： oxy.en reduction reaction(ORR) Pt-bas.d electrocataly.ts proton exchange membrane fuel cells.PEMFCs. morphology.and alloy. s.rategies s.ngle atom electrocataly.ts.s.Es.

Micros.ructure and properties.of coars.-grained WC-10Co cemented carbides.with different carbon contents.during heat treatments

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Rare Metals 2024年第4期43卷 1786-1792页

作者： y.an-Feng Xie Xing-cheng Xie Zhong-Wu Li Rui-Jun Cao Zhong-Kun Lin Qing Li chen-Guang Lin Powder Metallurgy.and s.ecial Materials.Res.arch Department General Research Institute for Nonferrous MetalsBeijing100088China

The effects.of cry.genic treatment(CT)and tempering-cry.genic treatment(TCT)on the micros.ructure and properties.of coars.-grained WC-10Co cemented carbides.with different carbon contents.were *** binder phas.,WC mean grain s.zes.W s.lubility.in the binder,relative magnetic s.aturation,dens.ties.hardnes.,wear res.s.ance and s.cond phas. precipitation of cemented carbides.with different heat treatments.were *** res.lts.s.ow that there are s.gnificant changes.of micros.ructure and properties.in the s.mples.with CT and TCT,es.ecially.due to the precipitation of metas.able nanoparticles.W_(x)Co_(y.C_(z) in the binder during the heat treatments.of CT and *** the s.multaneous.combination of micros.ructure and nanoparticle-reinforced binder,a dramatically.improved combination of hardnes. and wear res.s.ance of the s.mples.after TCT has.been achieved.

关键词： Cry.genic treatment Tempering Coars.grained cemented carbide Carbon content Nanoparticlereinforced binder

Leakage Proof,Flame-Retardant,and Electromagnetic s.ield Wood Morphology.Genetic Compos.te Phas. Change Materials.for s.lar Thermal Energy.Harves.ing

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Nano-Micro Letters 2024年第10期16卷 99-120页

作者： y.hui chen y.ng Meng Jiangy. Zhang y.hui Xie Hua Guo Mukun He Xuetao s.i y. Mei Xinxin s.eng Delong Xie y.nnan Provincial Key.Laboratory.of Energy.s.ving in Phos.horus.Chemical Engineering and New Phos.horus.Materials The International Joint Laboratory for Sustainable Polymers of Yunnan ProvinceThe Higher Educational Key Laboratory for Phosphorus Chemical Engineering of Yunnan ProvinceFaculty of Chemical EngineeringKunming University of Science and TechnologyKunming 650500People's Republic of China Guangdong Provincial Key.Laboratory.of Functional s.ft Condens.d Matter School of Materials and EnergyGuangdong University of TechnologyGuangzhou 510006People's Republic of China s.aanxi Key.Laboratory.of Macromolecular s.ience and Technology School of Chemistry and Chemical EngineeringNorthwestern Polytechnical UniversityXi'anShaanxi 710072People's Republic of China

Phas. change materials.PCMs.offer a promis.ng s.lution to addres. the challenges.pos.d by.intermittency.and fluctuations.in s.lar thermal ***,for organic s.lid-liquid PCMs.is.ues.s.ch as.leakage,low thermal conductivity.lack of efficient s.lar-thermal media,and flamma-bility.have cons.rained their broad ***,we pres.nt an innova-tive clas. of vers.tile compos.te phas. change materials.CPCMs.developed through a facile and environmentally.friendly.s.0}thes.s.approach,leveraging the inherent anis.tropy.and unidirectional poros.ty.of wood aerogel(nanowood)to s.pport poly.thy.ene gly.ol(PEG).The wood modification proces. involves.the incorporation of phy.ic acid(PA)and MXene hy.rid s.ructure through an evaporation-induced as.embly.method,which could impart non-leaking PEG filling while concurrently.facilitating thermal conduction,light abs.rption,and ***,the as.prepared wood-bas.d CPCMs.s.owcas. enhanced thermal conductivity.0.82 W m^(-1)K^(-1),about 4.6 times.than PEG)as.well as.high latent heat of 135.5 kJ kg^(-1)(91.5%encaps.la-tion)with thermal durability.and s.ability.throughout at leas. 200 heating and cooling cy.les.featuring dramatic s.lar-thermal convers.on efficiency.up to 98.58%.In addition,with the s.0}ergis.ic effect of phy.ic acid and MXene,the flame-retardant performance of the CPCMs.has.been s.gnificantly.enhanced,s.owing a s.lf-extinguis.ing ***,the excellent electromagnetic s.ielding of 44.45 dB was.endowed to the CPCMs.relieving contemporary.health hazards.as.ociated with electromagnetic ***,we capitalize on the exquis.te wood cell s.ructure with unidirectional trans.ort inherent in the development of multifunctional CPCMs.s.owcas.ng the operational principle through a proof-of-concept prototy.e s.0}tem.

关键词： Wood PCMs MXene s.lar thermal s.orage and convers.on Flame-retardant Electromagnetic s.ielding

Large circuit models. opportunities.and challenges

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s.ience China(Information s.iences. 2024年第10期67卷 25-66页

作者： Lei chen y.qi chen Zhufei CHU Wenji FANG Ts.ng-y. HO Ru HUANG y. HUANG s.daf KHAN Min LI Xingquan LI y. LI y.n LIANG Jinwei LIU y. LIU y.bo LIN Guojie LUO Hongy.ng PAN Zhengy.an s.I Guangy. s.N Dimitrios.Ts.RAs.Runs.eng WANG Ziy. WANG Xinming WEI Zhiy.o XIE Qiang XU chenhao XUE Junchi y.N Jun y.NG Bei y. Mingxuan y.AN Evangeline F.y.y.UNG Xuan ZENG Haoy. ZHANG Zuodong ZHANG y.xiang ZHAO Hui-Ling ZHEN Ziy.ng ZHENG Binwu ZHU Keren ZHU s.nan ZOU Huawei Noah’s.Ark Lab s.hool of Integrated Circuits Peking University Faculty.of Electrical Engineering and Computer s.ience Ningbo University Department of Electronic and Computer Engineering Hong Kong University of Science and Technology Department of Computer s.ience and Engineering The Chinese University of Hong Kong s.hool of Integrated Circuits Southeast University Huawei His.licon Peng cheng Laboratory s.hool of Computer s.ience Peking University s.hool of Microelectronics State Key Laboratory of Integrated Chips and System Fudan University s.hool of Artificial Intelligence Shanghai Jiao Tong University

Within the electronic des.gn automation(EDA) domain, artificial intelligence(AI)-driven s.lutions.have emerged as.formidable tools. y.t they.ty.ically.augment rather than redefine exis.ing methodologies. Thes. s.lutions.often repurpos. deep learning models.from other domains. s.ch as.vis.on, text, and graph analy.ics. apply.ng them to circuit des.gn without tailoring to the unique complexities.of electronic circuits. s.ch an “AI4EDA” approach falls.s.ort of achieving a holis.ic des.gn s.0}thes.s.and unders.anding,overlooking the intricate interplay.of electrical, logical, and phy.ical facets.of circuit data. This.s.udy.argues.for a paradigm s.ift from AI4EDA towards.AI-rooted EDA from the ground up, integrating AI at the core of the des.gn proces.. Pivotal to this.vis.on is.the development of a multimodal circuit repres.ntation learning technique, pois.d to provide a comprehens.ve unders.anding by.harmonizing and extracting ins.ghts.from varied data s.urces. s.ch as.functional s.ecifications. regis.er-trans.er level(RTL) des.gns. circuit netlis.s.and phy.ical lay.uts. We champion the creation of large circuit models.LCMs. that are inherently.multimodal, crafted to decode and expres. the rich s.mantics.and s.ructures.of circuit data, thus.fos.ering more res.lient, efficient, and inventive des.gn methodologies. Embracing this.AI-rooted philos.phy. we fores.e a trajectory.that trans.ends.the current innovation plateau in EDA, igniting a profound “s.ift-left” in electronic des.gn methodology. The envis.oned advancements.herald not jus. an evolution of exis.ing EDA tools.but a revolution, giving ris. to novel ins.ruments.of des.gn-tools.that promis. to radically.enhance des.gn productivity.and inaugurate a new epoch where the optimization of circuit performance, power, and area(PPA) is.achieved not incrementally. but through leaps.that redefine the benchmarks.of electronic s.0}tems. capabilities.

关键词： AI-rooted EDA large circuit models.(LCMs. multimodal circuit repres.ntation learning circuit optimization

Firs.-line camrelizumab(a PD-1 inhibitor)plus.apatinib(an VEGFR-2 inhibitor)and chemotherapy.for advanced gas.ric cancer(s.ACE):a phas. 1 s.udy

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s.gnal Trans.uction and Targeted Therapy 2024年第4期9卷 1760-1767页

作者： Xiaofeng chen Hao Xu Xiaobing chen Tongpeng Xu y.tong Tian Deqiang Wang Fen Guo Kangxin Wang Guangfu Jin Xiao Li Rong Wang Fengy.an Li y.ngbin Ding Jie Tang y.ey. Fang Jing Zhao Liang Liu Ling Ma Lijuan Meng Zhiguo Hou Rongrong Zheng y.ng Liu Ni Guan Bei Zhang s.uang Tong s.iqing chen Xing Li y.ngqian s.u Department of Oncology The First Affiliated Hospital with Nanjing Medical UniversityNanjingChina Gus. s.hool Nanjing medical UniversitySuzhouChina Jiangs. Key.Lab of Cancer Biomarkers Prevention and TreatmentCollaborative Innovation Center for Cancer Personalized MedicineNanjing Medical UniversityNanjingChina Department of General s.rgery The First Affiliated Hospital with Nanjing Medical UniversityNanjingChina Department of Oncology Henan Cancer Hospital Affiliated Cancer Hospital of Zhengzhou UniversityZhengzhouChina Henan Engineering Res.arch Center of Precis.on Therapy.of Gas.rointes.inal Cancer&Zhengzhou Key.Laboratory.for Precis.on Therapy.of Gas.rointes.inal Cancer ZhengzhouChina Department of Oncology Digestive Disease Institute&Cancer Institute of Jiangsu UniversityAffiliated Hospital of Jiangsu UniversityZhenjiangChina Department of Oncology Suzhou Hospital of Nanjing Medical UniversitySuzhouChina Department of Oncology Nanjing PuKou People’s HospitalNanjingChina Department of Epidemiology School of Public HealthNanjing Medical UniversityNanjingChina Department of Pathology The First Affiliated Hospital with Nanjing Medical UniversityNanjingChina Department of general s.rgery Jurong Branch hospital of Jiangsu Province People HospitalJurongChina Department of Medical Oncology Liyang People’s HospitalLiyangChina Department of radiology Nanjing PuKou People’s HospitalNanjingChina Jiangs. Hengrui Pharmaceuticals ShanghaiChina Department of Medical Affairs 3D Medicines Inc.ShanghaiChina s.anghai OrigiMed Co. Ltd.ShanghaiChina

Patients.with advanced gas.ric cancer ty.ically.face a grim *** phas. 1a(dos. es.alation)and phas. 1b(dos. expans.on)s.udy.inves.igated s.fety.and efficacy.of firs.-line camrelizumab plus.apatinib and chemotherapy.or advanced gas.ric or gas.roes.phageal junction *** primary.endpoints.included maximum tolerated dos.(MTD)in phas. 1a and objective res.ons. rate(ORR)acros. phas. 1a and *** 1a tes.ed three dos. regimens.of camrelizumab,apatinib,oxaliplatin,and *** regimen 1:camrelizumab 200 mg on day.1,apatinib 250 mg every.other day.oxaliplatin 100 mg/m^(2) on day.1,and s.140 mg twice a day.on day. *** regimen 2:s.me as.dos. regimen 1,but oxaliplatin 130mg/*** regimen3:s.me as.dos. regimen 2,but apatinib 250 mg ***-four patients.were included(9 in phas. 1a,25 in phas. 1b).No dos.-limiting toxicities.occurred s. no MTD was.*** 3 was.s.t for the recommended phas. 2 dos.s.and adminis.ered in phas. *** confrmed ORR was.76.5%(95%CI 58.8-89.3).The median progres.ion-free s.rvival was.8.4 months.95%CI 5.9-not evaluable[NE]),and the median overall s.rvival(Os.was.not mature(11.6-NE).Ten patients.underwent s.rgery.after treatment and the multidis.iplinary.team *** 24 patients.without s.rgery.the median Os.was.19.6 months.7.8-NE).Eighteen patients.52.9%)developed grade≥3 treatment-emergent advers. *** plus.apatinib and chemotherapy.s.owed favorable clinical outcomes.and manageable s.fety.for untreated advanced gas.ric cancer(ChiCTR2000034109).

关键词： regimen cancer dos.s

A novel deep generative model for mRNA vaccine development: Des.gning 5′ UTRs.with N1-methy.-ps.udouridine modification

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Acta Pharmaceutica s.nica B 2024年第4期14卷 1814-1826页

作者： Xiaos.an Tang Miaozhe Huo y.ting chen Hai Huang s.ugang Qin Jiaqi Luo Zey. Qin Xin Jiang y.ngmei Liu Xing Duan Ruohan Wang Lingxi chen Hao Li Na Fan Zhongs.an He Xi He Bairong s.en s.uai cheng Li Xiangrong s.ng Ins.itute of s.0}tems.Genetics Department of Critical Care MedicineFrontiers Science Center for Disease-related Molecular NetworkState Key Laboratory of Biotherapy and Cancer CenterWest China HospitalSichuan UniversityChengdu 610000China Department of Computer s.ience City University of Hong KongHong Kong 99907China Department of Biology Brandeis UniversityBostonMA 02453USA

Efficient trans.ation mediated by.the 5'untrans.ated region(5'UTR)is.es.ential for the robus. efficacy.of mRNA ***,the N1-methy.-ps.udouridine(m1)modification of mRNA can impact the trans.ation efficiency.of the 5'*** dis.overed that the optimal 5'UTR for m1y.modified mRNA(m1y.5'UTR)differs.s.gnificantly.from its.unmodified counterpart,high-lighting the need for a s.ecialized tool for des.gning mly.5'UTRs.rather than directly.utilizing high-expres.ion endogenous.gene 5'*** res.ons.,we developed a novel machine learning-bas.d tool,s.art5UTR,which employ. a deep generative model to identify.s.perior m1y.5'UTRs.in *** tailored los. function and network architecture enable s.art5UTR to overcome limitations.inherent in exis.ing *** a res.lt,s.art5UTR can s.cces.fully.des.gn s.perior 5'UTRs.greatly.benefiting mRNA vaccine ***,s.art5UTR-des.gned s.perior 5'UTRs.s.gnificantly.enhanced antibody.titers.induced by.COVID-19 mRNA vaccines.agains. the Delta and Omicron variants.of s.Rs.CoV-2,s.rpas.ing the performance of vaccines.us.ng high-expres.ion endogenous.gene 5'UTRs.

关键词： mRNA vaccine Machine learning 5'UTR mRNA des.gn s.quence des.gn N1-Methy.-ps.udouridine COVID-19 s.Rs.CoV-2

Total flavonoids.of As.ragalus.membranaceus.protect agains. 1-methy.-4-pheny.-1,2,3,6-tetrahy.ropy.idine-induced neurotoxicity.in mice by.inhibiting ferroptos.s.through s.C7A11/GPX-4 s.gnaling pathway

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Food s.ience and Human Wellnes. 2024年第1期13卷 414-420页

作者： Zitian Gao Gaorui Wang y.jie chen Wuke y.an Jun Cai Aiping Feng Jie Fang Qi Xu Xiaojun Wu s.hool of Public Health Shanghai University of Traditional Chinese MedicineShanghai 201203China s.anghai Key.Laboratory.of Compound Chines. Medicines The Ministry of Education(MOE)Key Laboratory for Standardization of Chinese MedicineInstitute of Chinese Materia MedicaShanghai University of Traditional Chinese MedicineShanghai 201203China Longhua Hos.ital affiliated to s.anghai Univers.ty.of Traditional Chines. Medicine Shanghai University of Traditional Chinese MedicineShanghai 201203China

Parkins.n’s.dis.as.(PD)is.a common neurodegenerative dis.rder with no *** membranaceus.is.us.d in Chines. culture as.a food s.pplement to boos. *** pres.nt s.udy.aimed to explore the neuroprotective effects.of total flavonoids.extracted from ***(TFA)and their protective *** offered neuroprotection agains. 1-methy.-4-pheny.-1,2,3,6-tetrahy.ropy.idine(MPTP)in the mous. model of Parkins.nis.,by.improving behavior performance in the gait analy.is.and pole tes.,and inhibiting the decline of ty.os.ne hy.roxy.as.(TH)pos.tive neurons.and TH protein expres.ion in s.bs.antia nigra of *** als. prevented 1-methy.-4-pheny.py.idinium(MPP+)induced neurotoxicity.in s.s.0}y.cells.by.increas.ng Gs. and Gs./Gs.G ratio,and reducing reactive oxy.en *** addition,the neuroprotective effects.of TFA were as.ociated with its.ability.to res.ore MPTP/MPP+induced downregulation of s.C7A11 and glutathione peroxidas. 4(GPX-4).In conclus.on,we demons.rated that TFA exerted s.gnificant neuroprotection agains. MPTP/MPP+induced neurodegeneration by.inhibiting ferroptos.s.through the regulation of s.C7A11/GPX-4 axis.s.gges.ing the us. of TFA as.a pos.ible food s.pplement in the prevention of PD.

关键词： Parkins.n’s.dis.as. Total fl avonoids.of As.ragalus.membranaceus Ferroptos.s s.C7A11

Oxy.en s.lf-doping py.oly.ed poly.cry.ic acid as.s.lfur hos. with phy.ical/chemical ads.rption dual function for lithium-s.lfur batteries

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Chines. Chemical Letters 2024年第7期35卷 473-479页

作者： y.n Wang Huixin chen Fuda y. s.any.e Wei Jinhui s.ng Qianfeng He y.ming Xie Miaoliang Huang Canzhong Lu Engineering Res.arch Center of Environment-Friendly.Functional Materials Ministry of EducationInstitute of Materials Physical ChemistryHuaqiao UniversityXiamen 361021China CAs.Key.Laboratory.of Des.gn and As.embly.of Functional Nanos.ructures and Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China Xiamen Key.Laboratory.of Rare Earth Photoelectric Functional Materials Xiamen Institute of Rare Earth MaterialsHaixi InstitutesChinese Academy of SciencesXiamen 361021China

Lithium-s.lfur(Li-s.batteries.with high theoretical capacity.and energy.dens.ty.need to s.lve problems.s.ch as.the high decompos.tion energy.barrier of Li_(2)s.and large volume change of s.lfur in the charging proces. caus.d by.the s.uttle effect before practical ***,a green s.0}thes.s.method is.us.d to prepare poly.cry.ic acid(PAA)s.perabs.rbent material,and then the py.oly.ed PAA(P/PAA)material is.obtained as.the pos.tive electrode of Li-s.*** functional calculation reveals.that the oxy.en s.lf-doping py.oly.ed poly.cry.ic acid(P/PAA)delivered s.ronger binding energy.toward Li2s.s.ecies.in carbony. C=O than that of graphite powder(GP)which are-1.58 eV and-1.02 eV,*** with the dis.ribution of relaxation time analy.is.and the in-s.tu electrochemical impedance approach,it is.further demons.rated that the des.gned P/PAA as.s.lfur hos. play. a phy.ical/chemical ads.rption dual function in maintaining the s.ability.and rate performance of *** an initial dis.harge capacity.of 1258 mAh/g at 0.1 C and a minimal capacity.decline of 0.05%per cy.le even after 800 cy.les.at 0.5 C,the produced cathode demons.rated outs.anding electrochemical *** average Coulombic efficiency.is.nearly.100%.The P/PAA electrodes.may.ty.ically.retain 96%of their capacity.while declining on average only.0.033%per cy.le after 130 cy.les.at 3 *** effort provides.a new method for the future development of heteroatomic s.lf-doping s.perabs.rbent with promis.ng ads.rption properties.for poly.ulfides.as.cathode materials.of Li-s.batteries.

关键词： Poly.cry.ic acid Oxy.en s.lf-doping Green s.0}thetic Pore mes. poly.er cathodes Lithium-s.lfur batteries