检索结果-南通市图书馆

Metallic Sb-stabilized porous silicon with stable SEI and high electron/ion conductivity boosting lithium-ion storage performance

引用

Rare Metals 2024年第9期43卷 4234-4242页

作者： Jia-Guo Deng Hao-Qin feng Yu-Long Xu Si-Guang Guo Jian-Ping Li Kai-Fu Huo Ji-Jiang Fu Biao Gao Pual-K.Chu The state key Laboratory of Refractories and Metallurgy and {2. of Advanced Materials and Nanotechnology Wuhan University of Science and TechnologyWuhan 430081China Wuhan National Laboratory for Optoelectronics(WNLO) School of Optical and Electronic InformationHuazhong University of Science and TechnologyWuhan 430074China Department of physics Department of Materials Science&Engineeringand Department of Biomedical EngineeringCity University of Hong KongHong Kong 999077China

Silicon(Si)has mild discharge potential and high theoretical capacity,making it a highly desirable material for lithium-ion batteries(LIBs).Nevertheless,the excessive volume expansion,poor ion/electron conductiv ity and unstable solid electrolyte interface(SEI)hinde practical application to ***,the metallic antimony(Sb)stabilized porous Si(SiDSb)composite was prepared by magnesiothermic reduction of Sb_(2.O_(3)and Mg_(2.Si and chemical etching to remove the by-product of *** highly conductive Sb nanodots embedded in the Si liga ments promote not only the formation of conductive and stable LiF-rich SEI,but also the electron/ion transpor ability of *** to the outstanding bulk/interface stability,excellent conductivity,as well as ideal porous structure,the SiDSb electrode demonstrates a capacity of82. mAh·g^(-1)after undergoing 32. turns at 1000 mA·g^(-1).Additionally,it exhibits a stable capacity of 675 m Ah·g^(-1)when tested at a higher current density of 5000 m A·g^(-1).The results reveal a viable solution to solve three problems at the same time,namely the poor conductivity,inferior SEI and excessive volume expansion of Si,boding well for the design of Si-based materials for high-energy LIBs.

关键词： Silicon Anodes Lithium-ion batteries Antimony solid electrolyte interphase

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

The friction and wear characteristics and lubrication mechanism of imidazole phosphate ionic liquid

引用

Science china(Technological sciences) 2009年第5期52卷 1191-1194页

作者： ZHANG Lin feng dapeng XU Bin LIU XuQing LIU WeiMin state key Laboratory of {2. lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China Research institute of lanzhou Petro{2. Corporation Lanzhou 730000China Graduate University of chinese academy of sciences Beijing 100039China

Several imidazole phosphate ionic liquids with varying carbon chain length have been synthesized at room *** characteristics and tribological properties of these synthesized ionic liquids were studied using four-ball friction and wear testing *** lubrication mechanism was also investigated by means of electron microscopy and X-ray photoelectron *** ex-perimental results showed that no corrosion was generated when the imidazole phosphate ionic liquid was applied to steel-steel ***,the imidazole phosphate showed excellent anti-wear and lubricating performances,its frictional performance was related to the polarity of ionic *** is suggested that the ionic liquids react with friction surface to form a protective film of iron phosphate and result in reduction in friction and wear.

关键词： imidazole phosphate ionic liquids friction and wear lubrication mechanism

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

Effect of functional groups on tribological properties of lubricants and mechanism investigation

引用

Friction 2023年第6期11卷 911-926页

作者： Hongxiang YU Haijie CHEN Zhiwen ZHENG Dan QIAO dapeng feng Zhenbin GONG Guojun DONG state key Laboratory of {2. lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou730000China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing100049China

Nine organic compounds were utilized as model lubricants to investigate the impact of functional groups on tribological *** Acid with carboxyl showed the best lubrication properties,and fluid film and tribofilm were coexistent in its friction test,bringing a low friction coefficient and wear *** addition,the lubricant with low friction coefficient corresponded to high adsorption energy in density functional theory(DFT)*** the lubricant forming adsorption film with large surface energy displayed small wear rate in friction ***,adsorption energies positively correlated surface *** on the experimental results,the action mechanism of functional groups on tribological properties of lubricants was *** functional groups make lubricant molecules show different adsorption energies and surface *** molecules with high adsorption energy are more likely to adsorb on substrates and form a vertical monolayer,which can maintain a regular molecular brush structure during friction and bring a low friction *** lubricant molecules with high surface energy may be more prone having tribochemical reactions during friction and forming protective tribofilm,which leads to a low wear rate.

关键词： functional group tribological property adsorption energy surface energy action mechanism

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

Green Synthesized Liquid-like Dynamic Polymer Chains with Decreased Nonspecific Adhesivity for High-Purity Capture of Circulating Tumor Cells

引用

CCS Chemistry 2024年第2期6卷 507-517页

作者： feng Wu Xiaofeng Chen Shuli Wang Ruimin Zhou Chunyan Wang Lejian Yu Jing Zheng Chaoyong Yang Xu Hou state key Laboratory of Physical Chemistry of {2. Surfaces College of Chemistry and Chemical EngineeringXiamen UniversityXiamenFujian 361005 College of Physical Science and Technology Xiamen UniversityXiamenFujian 361005 College of physics and New Energy Xuzhou University of TechnologyXuzhouJiangsu 221018 Fujian Engineering Research Center for solid-state Lighting Department of Electronic ScienceSchool of Electronic Science and EngineeringXiamen UniversityXiamenFujian 361005 institute of Artificial Intelligence Xiamen UniversityXiamenFujian 361005 Innovation Laboratory for sciences and Technologies of Energy Materials of Fujian Province(IKKEM) XiamenFujian 361102 state key Laboratory of Bio-Fibers and Eco-Textiles Qingdao UniversityQingdaoShandong 266071

The capture of circulating tumor cells(CTCs)is of great significance in reducing cancer mortality and ***,the nonspecific binding of proteins and white blood cells(WBCs)weakens the targeting capabilities of the capture surfaces,which critically hampers the efficiency and purity of the captured ***,we propose a liquid-like interface design strategy that consists of liquid-like polymer chains and anti-EpCAM modification processes for high-purity and high-efficiency capture of *** dynamic flexible feature of the liquid-like chains endows the modified surfaces with excellent antiadhesion property for proteins and blood *** liquid-like surfaces can capture the target CTCs and show high cell viability due to the environmentfriendly surface modification *** liquid-like surface designs were introduced in the deterministic lateral displacement(DLD)-patterned microfluidic chip,the nonspecific adhesion rate of WBCs was reduced by more than fivefold compared to that in the DLD chip without liquid-like interface design,while maintaining comparable capture ***,this strategy provides a novel perspective on surface design for achieving high purity and efficient capture of CTCs.

关键词： green synthesis dynamic polymer chains liquid-like interface nonspecific adsorption capture of circulating tumor cells microfluidics

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

Advanced strategies for combinational immunotherapy of cancer based on polymeric nanomedicines

引用

BMEMat(BioMedical Engineering Materials) 2024年第2期2卷 7-33页

作者： Kaisheng You Qi Wang Mohamed Syazwan Osman Dongpyo Kim Qian Li Chao feng Lei Wang Kuikun Yang School of Life Science and Technology School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbinChina state key Laboratory for Organic Electronics and Information Display&{2. of Advanced Materials Nanjing University of Posts&TelecommunicationsNanjingChina EMZI-UiTM Nanoparticles Colloids&Interface Industrial Research Laboratory(NANO-CORE) Centre for Chemical Engineering StudiesUniversiti Teknologi MARACawangan Pulau PinangMalaysia Department of chemical Engineering Center for Intelligent Microprocess of Pharmaceutical Synthesis(CIMPS)Pohang University of Science and Technology(POSTECH)PohangRepublic of Korea Department of Neurology The Second Affiliated Hospital of Harbin Medical UniversityHarbinChina College of Marine Life Science Ocean University of ChinaQingdaoChina

Although immunotherapy has revolutionized cancer therapy by providing efficient tumor growth suppression,long-term protection from recurrence as well as minimized side effects,the low response rate significantly limits the clinical application of immunotherapy in board types of solid *** order to improve the therapeutic efficacy,conventional therapies including radiotherapy,chemotherapy,phototherapy and chemodynamic therapy are employed to combine with immunotherapy to elicit stronger antitumor immune *** nanomedicines are frequently utilized in synergistic immunotherapy and other therapies owing to their tunable physiochemical properties,high drug loading capacity,ease of modification and low *** elaborate design and tailored properties,polymer nanomedicines can significantly enhance antitumor efficacy by enhancing tumor specificity,priming immune cells and amplifying immune responses in ***,until now,there is no review solely dedicated to the comprehensive development of polymer-based platforms for combinational immunotherapy of can***,this paper summarizes latest advances in the design,fabrication and application of polymer nanomedicines in combinational immunotherapy and traditional antitumor strategies including radiotherapy,chemotherapy,photothermal therapy,photodynamic therapy and other *** outlook on the trajectory and potential challenges of polymer nanomedicines in bridging the gap between immunotherapy and conventional therapies is also discussed.

关键词： drug delivery immunotherapy polymer nanomedicine synergistic therapy

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

Recent advances in structural modification on graphitic carbon nitride(g-C_(3)N_(4))-based photocatalysts for high-efficiency photocatalytic H_(2.O_(2.production

引用

Nano Research Energy 2024年第1期3卷 101-151页

作者： feng Ming Yap Grayson Zhi Sheng Ling Brenden Jing Su Jian Yiing Loh Wee-Jun Ong School of Energy and chemical Engineering Xiamen University MalaysiaSelangor Darul Ehsan 43900Malaysia Center of Excellence for NaNo Energy&Catalysis Technology(CONNECT) Xiamen University MalaysiaSelangor Darul Ehsan 43900Malaysia state key Laboratory of Physical Chemistry of {2. Surfaces College of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China Gulei Innovation institute Xiamen UniversityZhangzhou 363200China Shenzhen Research institute of Xiamen University Shenzhen 518057China

To date,extensively high demand for hydrogen peroxide(H_(2.O_(2.)has been predominantly supplied by the anthraquinone process for several worldwide applications,encompassing wastewater treatment,environmental remediation,and chemical ***,the compacted manufacturing,massive energy input and the release of tremendous wastes have restricted commercialization *** to mitigate such issues,the photocatalytic H_(2.O_(2.production by utilizing g-C_(3)N_(4)catalysts has endowed a greener,sustainable and promising alternative,considering that it involves water and oxygen as reactants in the present of sunlight as energy ***,we have manifested a comprehensive overview of the research progress for g-C_(3)N_(4)-based semiconductors for photocatalytic H_(2.O_(2.*** review has systematically elucidated state-of-the-art development of different modifications on g-C_(3)N_(4)to unravel the fundamental mechanism of H_(2.O_(2.evolution via oxygen reduction reaction(ORR)and water oxidation reaction(WOR).In addition,the contribution made by vacancy introduction,doping,heterogenization,and co-catalyst passivation with respect to photoefficiency enhancement have been ***,the current challenges and perspective of future development directions on photocatalytic H_(2.O_(2.production have also been *** such,g-C_(3)N_(4)stands as the next step toward advancement in the configuration and modulation of high-efficiency photocatalysts.

关键词： photocatalysis g-C_(3)N_(4) H_(2.O_(2.production structural modification

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

亲水、疏水聚合物刷水润滑机制的对比研究

引用

摩擦学学报（中英文） 2024年第4期44卷 519-529页

作者：孙靖东杨淑燕吴杨周峰郭峰青岛理工大学机械与汽车工程学院山东青岛266520 烟台先进材料与绿色制造山东省实验室山东烟台264006 中国科学院兰州化学物理研究所固体润滑国家重点实验室甘肃兰州730000

通过表面接枝聚合技术在摩擦副表面(陶瓷球-玻璃盘)分别生长亲、疏水型2.聚合物刷:聚甲基丙烯酸-3-磺酸丙酯钾盐(PSPMA)和聚甲基丙烯酸月桂酯(PLMA),成功构筑了润湿性不同的2.浸润表面,利用球-盘式光干涉薄膜测量装置研究了2.表面在... 详细信息

通过表面接枝聚合技术在摩擦副表面(陶瓷球-玻璃盘)分别生长亲、疏水型2.聚合物刷:聚甲基丙烯酸-3-磺酸丙酯钾盐(PSPMA)和聚甲基丙烯酸月桂酯(PLMA),成功构筑了润湿性不同的2.浸润表面,利用球-盘式光干涉薄膜测量装置研究了2.表面在水环境中的液膜厚度和摩擦力变化,结果表明2.表面呈现出不同的减摩效果:PLMA表面的摩擦力稳定且随速度变化较小,推测这与其较低的表面自由能和低玻璃化温度有关;PSPMA表面的摩擦系数波动较大且滑滚比和卷吸速度对其影响较大,这可能与聚合物刷发生高度水化而在接触表面形成了1层具有法向承载能力的水合层有关.亲水的PSPMA表面形成的水膜膜厚要远远高于疏水的PLMA表面水膜.高速滑动条件下,在流体动压效应和水合作用共同耦合作用使得PSPMA表面呈现出了润滑增强作用,从而获得了较高的膜厚和较低的摩擦系数.研究表明聚合物刷的水合效应对于获取优异的润滑性能是至关重要的,这对于理解水基润滑的机理和指导水润滑材料的设计具有较为重要的意义.

关键词：聚合物刷水合效应表面润湿性膜厚流体动压效应

来源：

维普期刊数据库博看期刊

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

Functional delivery vehicle of organic nanoparticles in inorganic crystals

引用

chinese chemical Letters 2019年第12期30卷 2351-2354页

作者： Linlin Kong Xinyi Jin dapeng Hu Leyun feng Dong Chen Hanying Li institute of Process Equipment College of Energy EngineeringZhejiang UniversityHangzhou 310027China state key Laboratory of Fluid Power and Mechatronic Systems Zhejiang UniversityHangzhou 310027China MOE key Laboratory of Macromolecular Synthesis and Functionalization State Key Laboratory of Silicon MaterialsDepartment of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027China

Encapsulation of bioactive substances for extended shelf life and controlled,targeted release is critical for their applications in food and drug ***,a new method has been developed to encapsulate bioactive molecules in the crystal composites,showing greatly enhanced stability and unique pHtriggered ***,a model bioactive,is first loaded in shellac nanoparticles via coprecipitation with a high encapsulation efficiency,and then the chlorophyll-loaded nanoparticles are incorporated into calcite crystals grown from a gel media containing the *** the protection of shellac nanoparticles and calcite crystals,chlorophyll shows excellent stability even under *** chlorophyll could only be released by first dissolving the calcite crystals under acidic condition and then dissolving the shellac nanoparticles under alkaline *** unique pHtriggered release mimics the pH change from acidic in the stomach to alkaline in the intestine and is thus well suited for controlled,targeted intestinal *** work suggests that the crystal composites are an ideal delivery vehicle for the functional design of bioactive molecules.

关键词： Nanoparticle Calcite crystal Encapsulation Chlorophyll Dual-pH responses

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

Ultrafine ordered L1_(2.-Pt-Co-Mn ternary intermetallic nanoparticles as high-performance oxygen-reduction electrocatalysts for practical fuel cells

引用

Journal of Energy Chemistry 2024年第6期93卷 157-165,I0005页

作者： Enping Wang Liuxuan Luo Yong feng Aiming Wu Huiyuan Li Xiashuang Luo Yangge Guo Zehao Tan fengjuan Zhu Xiaohui Yan Qi Kang Zechao Zhuang Daihui Yang Shuiyun Shen Junliang Zhang china-UK Low Carbon College Shanghai Jiao Tong UniversityShanghai 201306China institute of Fuel Cells Key Laboratory for Power Machinery and Engineering of MOESchool of Mechanical EngineeringShanghai Jiao Tong UniversityShanghai 200240China Shanghai Tangfeng Energy Technology Co.Ltd. Shanghai 201306China state key Laboratory of Advanced {2. Power Sources Guizhou Meiling Power Sources Co.Ltd.Zunyi 563003GuizhouChina School of Chemistry and chemical Engineering Chongqing UniversityChongqing 400044China institute of New Energy for Vehicles School of Materials Science and EngineeringTongji UniversityShanghai 201804China Department of chemical Engineering Columbia UniversityNY 10027USA

The long-range periodically ordered atomic structures in intermetallic nanoparticles(INPs)can significantly enhance both the electrocatalytic activity and electrochemical stability toward the oxygen reduction reaction(ORR)compared to the disordered atomic structures in ordinary solid-solution alloy ***,through a facile and scalable synthetic method,a series of carbon-supported ultrafine Pt_3Co_(x)Mn_(1-x)ternary INPs are prepared in this work,which possess the"skin-like"ultrathin Pt shells,the ordered L1_(2. atomic structure,and the high-even dispersion on supports(L1_(2.-Pt_3Co_(x)Mn_(1-x)/~SPt INPs/C).Electrochemical results present that the composition-optimized L1_(2.-Pt_3Co_(0.7)Mn_(0.3)/~SPt INPs/C exhibits the highest electrocata lytic activity among the series,which are also much better than those of the pristine ultrafine Pt/***,it also has a greatly enhanced electrochemical *** addition,the effects of annealing temperature and time are further *** importantly,such superior ORR electrocatalytic performance of L1_(2.-Pt_3Co_(0.7)Mn_(0.3)/~SPt INPs/C are also well demonstrated in practical fuel *** characterization analyses further reveal the major origins of the greatly enhanced ORR electrocata lytic performance:the Pt-Co-Mn alloy-induced geometric and ligand effects as well as the extremely high L1_(2. atomic-ordering *** work not only successfully develops a highly active and stable ordered ternary intermetallic ORR electrocatalyst,but also elucidates the corresponding"structure-function"relationship,which can be further applied in designing other intermetallic(electro)catalysts.

关键词： Platinum Cobalt Manganese Oxygen reduction reaction Ordered intermetallic L1_(2.atomic structure Proton-exchange membrane fuel cell

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

Spontaneous ignition of corrugated cardboard under dynamic high radiant flux

引用

Defence Technology（防务技术） 2024年第10期40卷 65-77页

作者： Liu Liu Yan Gu Hong Yang Xing Wang Yang Zhou Xiaogan Dai Yong Han Shanggang Wen Ming Li Congmei Lin Changgen feng Fei Tang Yushi Wen institute of chemical Materials China Academy of Engineering PhysicsMianyang 621999China state key Laboratory of Explosion Science and Technology Beijing Institute of TechnologyBeijing 100081China state key Laboratory of Fire Science University of Science and Technology of ChinaHefei 230026China institute of Applied physics and Computational Mathematics China Academy of Engineering PhysicsBeijing 100088China

Understanding the response of solid combustibles under high radiant fluxes is critical in predicting the thermal damage from extreme *** the more moderate radiant fluxes in conventional hydrocarbon fires,extreme events such as strong explosion,concentrated sunlight and directed energy can generate dynamic radiant fluxes at the MW/m^(2. level,creating a unique threat to *** study investigates the pyrolysis and spontaneous ignition behaviors of corrugated cardboard by using both experimental and numerical methods,under 10-cm dynamic high radiant fluxes ranging from 0.2.to 1.2. MW/m^(2. for 10 *** spontaneous ignition process at dynamic high radiant fluxes was recorded and *** ignition modes were found at the critical radiant flux of 0.4 MW/m^(2.,namely hot-gas spontaneous ignition and hot-residue piloted *** latter is not the focus of this paper due to its extremely small probability of *** research reveals that the increase in flux intensity induces shorter delay times for both pyrolysis and ignition,lower ignition energy density,along with a corresponding rise in the critical mass flux and surface temperature at ignition *** simulation results are generally aligned with the experimental findings,despite some divergences may be attributed to model simplifications and parameter *** work contributes to a deeper insight into material behavior under extreme radiation,with valuable implications for fire safety and hazard assessment.

关键词： Extreme radiation Fire safety Corrugated cardboard Pyrolysis Ignition temperature

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：