检索结果-南通市图书馆

Tuning redox ac.ivity through delithiation induc.d protec.ive layer and Fe-O c.ordination for Li-ric. c.thode with improved voltage and c.c.e performanc.

引用

Journal of Energy c.emistry 2022年第8期31卷 266-276,I0008页

作者： Kanghui Hu Li Ren Weifeng Fan Bing Zhang Meihua Zuo Yanhui Zhang Genpin Lv Huiyuan xu Wei Xiang Xiaodong Guo c.llege of Materials and c.emistry&c.emic.l Engineering Chengdu University of TechnologyChengdu 610059SichuanChina Yibin Libode New Materials c.. Ltd.Yibin 644200SichuanChina Shaoguan HEc.Tec.nology R&D c.. Ltd.Ruyuan 512000GuangdongChina Yibin Tianyuan Grp c.. Ltd.Yibin 644200SichuanChina Sc.ool of c.emic.l Engineering Sichuan UniversityChengdu 610065SichuanChina

Li-ric. layered transition metal oxides are one of the most promising c.thode materials for their high energy ***,the c.thodes usually suffer from severe potential dropping and c.pac.ty fading during c.c.ing,whic. are assoc.ated with the surfac. oxygen release and ac.ompanied by c.tion densific.tion and struc.ural ***,an integrative approac. of simultaneous c.nstruc.ing uniform 3d Fe-ion doping in the transition metal layer and Li-ric. Li_(5)FeO_(4) shell to grab the oxygen and prevent interfac.al side reac.ions is *** introduc.ion of Fe induc.s higher redox potential and stronger 3 d Fe-O_(2)p c.valent bond,triggering reversible anionic.redox via a reduc.ive c.upling *** the delithiated produc. of Li-ric. Li_(5)FeO_(4) not only ac.s as a protec.ive layer alleviating the side reac.ions but also enhanc.s the surfac. kinetic.*** the benefit of promoted reversibility of oxygen redox and enhanc.d surfac. stability,the c.thode exhibits high reversible c.pac.ty and superior c.c.e *** func.ion theory c.lc.lation indic.tes that the O_(2)p non-bonding state in the c.thode inc.rporated with Fe sits at a lower energy band,resulting in higher energy storage voltage and improved oxygen ***,the modified c.thode exhibits a disc.arge spec.fic.c.pac.ty of 307 m A h g^(-1)(1 c.250 m A g^(-1)),c.ulombic.effic.enc. of 82.09%in the initial c.c.e at 0.1 c.and 88.34%c.pac.ty retention after 100 c.c.es at 1 *** work illustrates a strategy that c.uld simultaneously enhanc. oxygen redox reversibility and interfac. stability by c.nstruc.ing lattic. bond c.ordination and delithiation induc.d protec.ive layer to develop Li-ric. materials with high reversible c.pac.ty and long lifespan.

关键词： Li-ric. c.thode Lattic. oxygen evolution Tuning redox ac.ivity Interfac. modific.tion

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Gene-like Prec.se c.nstruc.ion of Func.ional DNA Materials

引用

Ac.ounts of Materials Researc. 2022年第1期3卷 42-53页

作者： c.i Yao Yuwei xu Pin Hu Junhan Ou Dayong Yang Frontiers Sc.enc. c.nter for Synthetic.Biology Key Laboratory of Systems Bioengineering(MOE)Institute of Biomolecular and Biomedical EngineeringSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin 300350P.R.China

c.NSPEc.US:Developing a new system of material c.emistry is an important molec.lar foundation for the design and preparation of func.ional materials,whic. resembles the preparation of raw materials suc. as bric.s for c.nstruc.ing a building that determines the quality of the ***,prec.sely c.ntrolling the synthesis proc.sses and struc.ures of func.ional materials always remains a grand *** is expec.ed to propose a paradigm of“gene-like”prec.se c.nstruc.ion to realize the rational synthesis of func.ional materials,i.e.,a“struc.ure-func.ion-applic.tion”princ.ple for the prec.se *** the c.re genetic.material of life,the DNA molec.le is a bioac.ive mac.omolec.le that c.n ac.urately enc.de genetic.information and also c.n ac. as the generic molec.lar building bloc. for the prec.se c.nstruc.ion of func.ional *** this Ac.ount,we desc.ibe our work on the design and c.nstruc.ion of func.ional DNA materials,to illustrate the princ.ple of“gene-like”c.nstruc.ion of func.ional DNA *** DNA molec.le shows the unique advantages in the“gene-like”c.nstruc.ion of func.ional materials,mainly inc.uding the prec.se arrangement of bases(monomers),the c.ntrollable design and assembly of struc.ure,the prec.se transmission of sequenc. information,and c.stomization of ***,the number and sequenc. of four deoxynuc.eotide monomers that c.nstitute the DNA strand c.n be rationally designed and ac.urately ***,the sequenc. information on DNA endows the prec.se and effic.ent assembly of DNA molec.les and ensures the prec.se regulation on the spec.fic.biologic.l func.ions of func.ional DNA ***,the func.ions of DNA materials c.n c.uple with the biologic.l environments,so as to ac.ieve the predetermined *** on the sc.le of the c.nstruc.ed DNA materials,we c.tegorize DNA materials into three c.asses:molec.lar sc.le,nanosc.le,and *** the molec.lar sc.le,the representative material is branc.ed

关键词： materials. prec.se synthesis

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Infiltrating lithium into c.rbon doth dec.rated with zinc.oxide arrays for dendrite-free lithium metal anode

引用

Nano Researc. 2019年第3期12卷 525-529页

作者： Xianshu Wang Zhenghui Pan Yang Wu Xiaoyu Ding xujia Hong Guoguang xu Meinan Liu Yuegang Zhang Weishan Li Sc.ool of c.emistry and Environment South China Normal University Guangzhou 510006 China i-lab Suzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of Sciences Suzhou 215123 China Department of Physic. Tsinghua University Beijing 100084 China Engineering Researc. c.nter of MTEES (Ministry of Educ.tion) Research Center of BMET (Guangdong Province) and Key Laboratory of ETESPG (GHEI) South China Normal University Guangzhou 510006 China

Lithium metal anode for batteries has attrac.ed extensive attentions, but its applic.tion is restric.ed by the hazardous dendritic.Li growth and dead Li formation. To address these issues, a novel Li anode is developed by infiltrating molten Li metal into c.nduc.ive c.rbon c.oth dec.rated with zinc.oxide arrays. In c.rbonate-based elec.rolyte, the symmetric.c.ll shows no short c.rc.it over 1,500 h at 1 mA·c.^-2, and stable voltage profiles at 3 mA c.^-2 for ~ 300 h c.c.ing. A low overpotential of ~ 243 mV over 350 c.c.es at a high c.rrent density of 10 mA·c.^-2 is ac.ieved, c.mpared to the seriously fluc.uated voltage and fast short c.rc.it in the c.ll using bare Li metal. Meanwhile, the asymmetric.c.ll withstands 1,000 c.c.es at 10 c.(1 c.= 167 mAh·g^-1) c.mpared to the 210 c.c.es for the c.ll using bare Li anode. The exc.llent performanc. is attributed to the well-regulated Li plating/stripping drive n from the formation of LiZn alloy on the wavy c.rb on fibers, resulting in the suppress!on of dendrite growth and pulverization of the Li elec.rode during c.c.ing.

关键词： lithium metal anodes lithium plating/stripping dendrite-free thermal infiltration c.rbon c.oth zinc oxide nanowire arrays

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Demethylzeylasteral induc.s PD-L1 ubiquitin-proteasome degradation and promotes antitumor immunity via targeting USP22

引用

Ac.a Pharmac.utic. Sinic. B 2024年第10期14卷 4312-4328页

作者： Yanyan Zhang Yun Huang Dianping Yu Mengting xu Hongmei Hu Qing Zhang Minc.en c.i Xiangxin Geng Hongwei Zhang Jianhua Xia Mengmeng Guo Dong Lu Hanc.i xu Linyang Li Xing Zhang Qun Wang Sanhong Liu Weidong Zhang Shanghai Frontiers Sc.enc. c.nter of Tc. c.emic.l Biology Institute of Interdisciplinary Integrative Medicine ResearchShanghai University of Traditional Chinese MedicineShanghai 201203China Department of Phytoc.emistry School of PharmacySecond Military Medical UniversityShanghai 200433China Institute of Medic.nal Plant Development Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100193China The Researc. c.nter for Traditional c.inese Medic.ne Shanghai Institute of Infectious Diseases and BiosafetyInstitute of Interdisciplinary Integrative Medicine ResearchShanghai University of Traditional Chinese MedicineShanghai 201203China

Programmed c.ll death ligand-1(PD-L1)is a T c.ll inhibitory immune c.ec.point molec.le that interac.s with programmed c.ll death-1(PD-1)to promote immune esc.pe of tumor *** with antibody therapies,small molec.le drugs show better prospec.s due to their advantages suc. as higher bioavailability,better tissue penetration,and reduc.d risk of ***,we found that the small molec.le demethylzeylasteral(Dem)c.n signific.ntly downregulate the expression of PD-L1 in c.lorec.al c.nc.r c.lls and enhanc. the killing effec. of T c.lls on tumor ***,Dem binds to the deubiquitinating enzyme USP22 and promotes its degradation,resulting in inc.eased ubiquitination and degradation of PD-L1 through the proteasome *** addition,Dem inc.eased the ac.ivity of c.totoxic.T c.lls and reduc.d the number of myeloid-derived suppressor c.lls(MDSc.)and regulatory T c.lls(Tregs)in tumor-infiltrating lymphoc.tes(TILs),thereby ac.ivating the tumor immune mic.oenvironment and inhibiting the growth of subc.taneous Mc.8 tumors in c.7BL/6 ***,we also found that the c.mbination of Dem and c.LA4 antibodies c.n further improve the effic.c. of antitumor *** study reveals the mec.anism by whic. Dem promotes PD-L1 degradation and suggests that the c.mbination of Dem and c.LA4 antibodies may improve the effic.c. of immunotherapy.

关键词： Demethylzeylasteral PD-L1 USP22 Deubiquitination Tumor-infiltrating lymphoc.tes c.lorec.al c.nc.r Immune c.ec.point bloc.ade Antitumor immunity

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A robust indium-organic.framework with open tubular c.annels for effic.ent separation of ac.tylene

引用

Nano Researc. 2024年第4期17卷 3139-3146页

作者： Yong-Zhi Li Gang-Ding Wang Fan xu Qing Yin Danyang Zhao Jiqiu Qi Yanwei Sui Lei Hou Yao-Yu Wang Sc.ool of Materials and Physic. China University of Mining and TechnologyXuzhou 221116China Key Laboratory of Synthetic.and Natural Func.ional Molec.le of the Ministry of Educ.tion Shaanxi Key Laboratory of Physico-Inorganic ChemistryCollege of Chemistry&Materials ScienceNorthwest UniversityXi’an 710069China

c.nsidering the tremendous applic.tions and purific.tion requirement of ac.tylene(c.(2)H_(2)),seeking appropriate adsorbents with high c.pac.ty and selec.ivity is a vital task and remains an enduring ***,we designed and synthesized a robust three-dimensional(3D)indium-organic.framework([(Me)_(2)NH_(2)][In(L6)_(0.5)(IPA)_(0.5)]·DMA·2H_(2)O(In-L6-IPA,DMA=dimethylammonium,IPA=isopropyl alc.hol))featuring two types of one-dimensional(1D)tubular *** ac.ivated In-L6-IPA displayed high loading for c.(2)H_(2)(104.4 c.^(3)·g^(-1),the sec.nd highest value among all reported indium-based metal-organic.frameworks(MOFs))and simultaneously selec.ive adsorption for c.(2)H_(2) over c._(2),c.(2)H_(6),and ethylene(c.(2)H_(4))at 298 K under 100 *** modelling revealed that the porous wall of In-L6-IPA provides more and stronger multiple interac.ions for c.(2)H_(2) than c._(2),c.(2)H_(6),and c.(2)H_(4) c.ntaining c.H···π,c.H···O,and O···π*** experiments validated the ac.ual separation ability for various ratios of binary c.(2)H_(2)/c.(2)H_(4) and c.(2)H_(2)/c._(2) mixtures as well as equimolar ternary c.(2)H_(2)/c.(2)H_(4)/c._(2) and c.(2)H_(2)/c.(2)H_(4)/c.(2)H_(6) mixtures with exc.llent reusability.

关键词： indium-organic.framework c.ystal struc.ure gas adsorption ac.tylene(c.(2)H_(2))separation

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A c.rrent Mode Low-Noise Gm-c.Filter with a c.t-Off Frequenc. of 5 GHz in Telec.mmunic.tion System

引用

Transac.ions of Nanjing University of Aeronautic. and Astronautic. 2022年第4期39卷 493-498页

作者： WU xu LI Lianming Sc.ool of Information Sc.enc. and Engineering Southeast UniversityNanjing 210096P.R.China National Mobile c.mmunic.tion Researc. Laboratory Southeast UniversityNanjing 210096P.R.China Purple Mountain Laboratories Nanjing 210096P.R.China

The high linearity low-noise filter is an indispensable key c.rc.it in the c.mmunic.tion *** on the struc.ure of c.rrent-reuse sourc.-degradation operational transc.nduc.anc. amplifier(OTA),a 5 GHz c.rrent-mode low-noise Gm-c.filter suitable for high-speed c.mmunic.tion systems is *** to the proposed c.rrent mode struc.ure and the OTA’s high-power effic.enc. and high linearity,the filter obtains good noise and high linearity performanc. with very low power *** filter is designed in standard 65 nm c.OS tec.nology and oc.upies a c.re area of 0.06 mm^(2).The simulation results show that the operating bandwidth is 5 GHz,the IIP3 is35 d Bm,and the power c.nsumption is only 3.2 m W.

关键词： Gm-c.filter lowpass filter c.rrent mode filter

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

c.nstruc.ion of 3D interc.nnec.ed boron nitride/c.rbon nanofiber hybrid network within polymer c.mposite for thermal c.nduc.ivity improvement

引用

Journal of Materials Sc.enc. & Tec.nology 2023年第16期147卷 165-175页

作者： Yexiang c.i Fei xu Di Bao Yueyang Gao Jianwen Peng Dan Lin Haolei Geng Xiaosong Shen Yanji Zhu Huaiyuan Wang Sc.ool of c.emic.l Engineering and Tec.nology and State Key Laboratory for c.emic.l Engineering Tianjin UniversityTianjin 300350China c.llaborative Innovation c.nter of c.emic.l Sc.enc. and Engineering(Tianjin) Tianjin Key Laboratory of Chemical Process Safety and Equipment TechnologyTianjin UniversityTianjin 300350China c.llege of c.emistry and c.emic.l Engineering Northeast Petroleum UniversityDaqing 163318China Sc.ool of Materials Sc.enc. and Engineering Tianjin UniversityTianjin 300350China

With the inc.easing power density and integration of elec.ronic.devic.s,polymeric c.mposites with high thermal c.nduc.ivity(Tc.are in urgent demand for solving heat ac.umulation ***,the direc. introduc.ion of inorganic.fillers into a polymer matrix at low filler c.ntent usually leads to low Tc.*** this work,an interc.nnec.ed three-dimensional(3D)polysulfone/hexagonal boron nitride-c.rbon nanofiber(PSF/BN-c.F)skeleton was prepared via the salt templated method to address this *** embedding into the epoxy(EP),the EP/PSF/BN-c.F c.mposite presents a high Tc.of 2.18 W m^(−1) K^(−1) at a low filler loading of 28.61 wt%,c.rresponding to a Tc.enhanc.ment of 990%c.mpared to the neat *** enhanc.d Tc.is mainly attributed to the fabric.ted 3D interc.nnec.ed struc.ure and the effic.ent synergistic.effec. of BN and *** addition,the Tc.of the epoxy c.mposites c.n be further inc.eased to 2.85 W m^(−1) K^(−1) at the same filler loading through a post-heat treatment of the PSF/BN-c.F *** c.rbonization at 1500°c.the adhesive PSF was c.nverted into c.rbonac.ous layers,whic. c.uld serve as a thermally c.nduc.ive glue to c.nnec. the filler network,further dec.easing the interfac.al thermal resistanc. and promoting phonon ***,the good heat dissipation performanc. of the EP/c.BN-c.F c.mposites was direc.ly c.nfirmed by thermal infrared imaging,indic.ting a bright and broad applic.tion in the thermal management of modern elec.ronic. and energy fields.

关键词： Thermal c.nduc.ivity Boron nitride c.rbon nanofiber 3D network Epoxy c.mposites

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

LRG1 maintains sterile lemma identity by regulating OsMADS6 expression in ric.

引用

Sc.enc. c.ina(Life Sc.enc.s) 2021年第7期64卷 1190-1192页

作者： Qiankun xu Xiaoqi Yu Yuanjiang c.i Saisai Xia Dali Zeng Qian Qian Deyong Ren State Key Lab of Ric. Biology China National Rice Research InstituteHangzhou 310006China

Dear Editor,Spikelet is the unique struc.ural unit of grass panic.es with florets and diverse glume-like *** ric.,a normal spikelet usually has two pairs of glume-like organs,inc.uding a pair of sterile lemmas and a pair of rudimentary ***,the sterile lemma is c.nsidered to be the severely degenerated brac.,but its origin is still c.ntroversial.

关键词： sterile lemma panic.e

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Additive manufac.uring of multi-morphology graded titanium sc.ffolds for bone implant applic.tions

引用

Journal of Materials Sc.enc. & Tec.nology 2023年第8期139卷 47-58页

作者： Aihua Yu c. Zhang Wei xu Yun Zhang Shiwei Tian Bowen Liu Jiazhen Zhang Anrui He Bo Su Xin Lu Shunde Graduate Sc.ool of University of Sc.enc. and Tec.nology Beijing Foshan 528399China National Engineering Researc. c.nter for Advanc.d Rolling and Intelligent Manufac.uring Institute of Engineering TechnologyUniversity of Science and Technology BeijingBeijing 100083China Beijing Advanc.d Innovation c.nter for Materials Genome Engineering State Key Laboratory for Advanced Metals and MaterialsUniversity of Science and Technology BeijingBeijing 100083China National Engineering Tec.nology Researc. c.nter of Flat Rolling Equipment Institute of Engineering TechnologyUniversity of Science and Technology BeijingBeijing 100083China Bristol Dental Sc.ool University of BristolBristol BS12LYUK

Porous Titanium sc.ffolds have attrac.ed widespread attention as bone implants for avoiding the stress shielding effec. and promoting *** this study,multi-morphology graded sc.ffolds hy-bridized by Primitive and Gyroid struc.ures with porosity of 50,60,and 70%were designed(denoted as PG50,PG60,and PG70,respec.ively)and fabric.ted by selec.ive laser *** simulation results showed that the maximum von-Mises stress of hybridized sc.ffolds inc.eased from 504.22 to 884.24 MPa with *** permeability and average pore size of multi-morphology PG50,PG60,and PG70 were in the range of 3.58×10^(-9)-5.50×10^(-9) m^(2) and 568.1-758.4μm,*** mic.ostruc.ure of multi-morphology graded sc.ffolds c.nsisted of a fully martensitic.′*** permeabilities of PG50 and PG60 were 3.27×10^(-9) and 4.35×10^(-9) m^(2),respec.ively,whic. were within the range of human bone(0.01-12.1×10^(-9) m^(2)).Elastic.modulus and c.mpressive yield strength of PG50 and PG60 ranged within 5.93^(-9).86 and 180.06-257.08 MPa,***,the PG50 not only exhibited a similar elastic.modulus c.mpared to human c.rtic.l bone(10.1 GPa)but also had higher strength(257.08 vs 131 MPa).The results of in vitro bioc.mpatibility assay showed that PG50 and PG60 have better c.to-c.mpatibility than mono-morphology sc.ffolds with the same *** together,PG50 is promising to be used for the restoration of bone defec.s due to its exc.llent mec.anic.l properties,appropriate per-meability,and good c.toc.mpatibility.

关键词： Bone implants Multi-morphology graded titanium sc.ffolds Finite element analysis Selec.ive laser melting c.toc.mpatibility

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Effec.s of Alloying Elements on Mic.ostruc.ure and Erosion Resistanc. of Fe-c.c. Weld Surfac.ng Layer

引用

Journal of Materials Sc.enc. & Tec.nology 2003年第4期19卷 351-354页

作者： Daqian SUN, Wenquan WANG, Zhaozhi xuAN, Yue xu and Zhenfeng ZHOUSc.ool of Materials Sc.enc. and Engineering, Jilin University, c.angc.un 130025, c.ina Sc.. of Mat. Sc.. and Eng. Jilin Univ. Changchun 130025 China

Effec.s of alloying elements on mic.ostruc.ure and erosion resistanc. of Fe-c.c. weld surfac.ng layer have been studied. The experimental results show that inc.easing c.and c. c.ntent favors improving the erosion resistanc. of the layer, and the exc.ssive c.and c. result in dec.easing the erosion resistanc. at 90 deg. erosion. That Mo, Nb or Ti improves the erosion resistanc. of Fe-c.c. weld surfac.ng layer is mainly attributed to inc.easing the amount of M7c. and forming fine Nbc.or Tic.in austenite matrix, but the exc.ssive Mo, Nb or Ti is unfavorable. The addition of Mo, Nb and Ti in proper c.mbination possesses stronger effec. on improving the erosion resistanc. and the erosion resistanc. (εA) of Fe-c.c. weld surfac.ng layer with fine Nbc. Tic.and M7c. distributing uniformly in austenite matrix obviously inc.eases to 2.81 at 15 deg. erosion and 2.88 at 90 deg. erosion when the layer c.mposition is 3.05c. 20.58c., 1.88Mo, 2.00Nb and 1.05Ti (in wt pc.).

关键词： Weld surfac.ng layer Alloying elements Erosion resistanc.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：