检索结果-南通市图书馆

MOF-derived Cu embedded into N-doped mesoporous carbon as a robust support of PdAu nanocatalysts for ethanol electrooxidation

引用

Rare Metals 2024年第3期43卷 1083-1094页

作者： Yu-Fu Huang Peng Wu Jun-Ping Tang Jian Yang Jing Li Shuai Chen Xue-Ling Zhao ChengChen bin-wei zhang Yan-Yun Ma wei-Heng Shi Dong-Hai Lin Shi-Gang Sun School of Energy and Materials Shanghai Engineering Research Center of Advanced Thermal Functional MaterialsShanghai Key Laboratory of Engineering Materials Application and EvaluationShanghai Polytechnic UniversityShanghai201209China State Key Laboratory of Physical Chemistry of Solid Surfaces Department of ChemistryCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen361005China School of Chemistry and Chemical Engineering Chongqing UniversityChongqing401331China Center of Advanced Energy Technology and Electrochemistry Institute of Advanced Interdisciplinary StudiesChongqing UniversityChongqing400044China Institute of Functional Nano&Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials&DevicesSoochow UniversitySuzhou215123China Department of Materials Science and Engineering Drexel UniversityPhiladelphiaPA19104USA

Metal-organic frameworks(MOFs)h ave attracted widespread attention due to their large surface area and porous *** designing the nanostructures of MOFs to promote their application in ethanol electrooxidation is still a ***,a novel Cu-NCNs(Cu-nitrogen-doped carbon nanotubes)support was synthesized by pyrolysis of melamine(MEL)and Cu-ZIF-8 together,and then,Pd-Au nanoalloys were loaded by sodium borohydride reduction method to prepare PdAu@Cu-NCNs *** generating mesoporous carbon with high specific surface area and favorable electron and mass transport can be used as a potential excellent carrier for PdAu *** addition,the balance of catalyst composition and surface structure was tuned by controlling the content of Pd and ***,the best-performed Pd_(2)Au_(2)@Cu-NCN-1000-2(where 1000 means the carrier calcination temperature,and 2 means the calcination constant temperature time)catalyst exhibits better long-term stability and electrochemical activity for ethanol oxidation in alkaline media(4.80 A·mg^(-1)),which is 5.05 times higher than that of commercial Pd/C(0.95 A·mg^(-1)).Therefore,this work is beneficial to further promoting the application of MOFs in direct ethanol fuel cells(DEFCs)and can be used as inspiration for the design of more efficient catalyst support structures.

关键词： Metal-organic frameworks(MOFs) N-doped Mesoporous carbon PdAu Ethanol electrooxidation

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

CeO_(2)-clay composites for ultra-long cycle life electrochemical capacitive energy storage application

引用

Journal of Rare Earths 2023年第5期41卷 728-739,I0004页

作者： Shan-Shan Chai wei-bin zhang Jing-Lei Yang Lun zhang Xiong-wei Han Myat Myintzu Theint Xue-Jing Ma College of Materials and Chemistry&Chemical Engineering Chengdu University of TechnologyChengdu 610059China Mineral Development Section for the International Relation Department of MinesMinistry of Natural Resources and Environmental ConversationNay Pyi Taw15011Myanmar

The lattice expansion caused by the reduction of Ce(Ⅳ)to Ce(Ⅲ)impeded the development of the CeO_(2)as an effective electrode material for electrochemical ***,we prepared CeO_(2)-clay composites through a one-step hydrothermal *** interlayer structures of clays efficiently accommodate volume changes induced by crystal lattice expansion to achieve ultra-long cycle *** 60000 charge-discharge cycles,the capacitance retention rate of the assembled asymmetric supercapacitors is as high as~-100%.The key findings of this work reveal the potential application of clays in achieving ultralong cycle stability of the CeO_(2)electrode material,paving the way for further application of the CeO_(2)in electrochemical energy storage.

关键词： Cerium dioxide Clay mineral Cycle life Electrochemical supercapacitor Rareearths

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

Alkali cation intercalation manganese phosphate hydrate boosting electrochemical kinetics for pseudocapacitive energy storage

引用

Journal of Materiomics 2022年第4期8卷 833-842页

作者： Xu Bao wei-bin zhang Lun zhang Yao-Wen Guo Xia Zhou Xian-Li zhang Xiong-wei Han Jianping Long College of Materials and Chemistry&Chemical Engineering Chengdu University of TechnologyChengdu610059China

New insight into the effect on the alkali cations of Liþ,Naþ,and Kþpre-intercalated between adjacent layers of Mn3(PO4)2$3H2O towards the charge storage mechanism and their electrochemical kinetics of intercalation/deintercalation in three alkali electrolytes is *** electrochemical perfor-mance of the designed LieMn3(PO4)2$3H2O material outperforms that most of Mn-based pseudocapa-citive electrode *** designed unique stratified structure is attractive for quick charge migration,which confirms that the appropriate pre-intercalation of alkali cation between layers is an efficient strategy to improve kinetics for the high-power density pseudocapacitive supercapacitor energy storage application.

关键词： Manganese phosphate Alkali cation Electrochemical kinetics Pseudocapacitance

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

二硫化钼和碳纳米管复合物电极用于盐差能转换

引用

电化学（中英文） 2024年第6期30卷 32-44页

作者：李家俊张伟彬刘鑫宇杨静蕾尹易杨泽钦马雪婧成都理工大学材料与化学化工学院四川成都610059

海洋占地球水资源总量的97%,地表面积的70%以上。随着化石燃料等不可再生能源的持续消耗与可再生能源的快速发展,人们对海洋资源的利用越来越重视。海洋能包括潮汐能、波浪能、温差能和盐差能等。其中盐差能是海水和淡水相互作用产生的... 详细信息

海洋占地球水资源总量的97%,地表面积的70%以上。随着化石燃料等不可再生能源的持续消耗与可再生能源的快速发展,人们对海洋资源的利用越来越重视。海洋能包括潮汐能、波浪能、温差能和盐差能等。其中盐差能是海水和淡水相互作用产生的能量,是以化学能形式存在的海洋能,这种能量较多产生在河口处。目前,压力延迟渗透技术、反电渗析技术和电容混合技术是转换盐差能的三种主要技术。本文构建了一种基于电容混合技术的新型盐差电池,使用二硫化钼和多壁碳纳米管复合物电极作为阳极,活性炭作为阴极。将两种不同离子储存机制的材料复合在一起,二硫化钼具有类似石墨烯的层状结构,层间间距约为石墨烯的两倍,是一种可以与钠离子发生插层反应的电池电极材料。多壁碳纳米管具有典型的双电层效应,放电时在其表面吸附钠离子的同时,可以帮助钠离子更快地进入二硫化钼层间,加快离子传输效率和盐差能的转换效率。对该复合材料进行物理和电化学表征,并与活性炭电极组装的盐差电池,测试其盐差能转换能力。浓度响应电压150 mV,经过一个完整的四步循环后,转换能量密度可达6.96 J·g^(-1)。该器件原材料价格较低,并且不使用离子膜,更加环保,为转换盐差能的研究提供了一种新途径。

关键词：盐差量电化学转化转换效率二硫化钼碳纳米管

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

Freestanding carbon fiber-confined yolk-shelled silicon-based anode for promoted lithium storage applications

引用

Rare Metals 2023年第11期42卷 3718-3728页

作者： Dong-Chen Jia Yuan-Yong Feng Chuan-Long zhang Jian-Jiang Li bin-wei zhang Yu-Hai Dou Jagadish Chandra Roy Xiao-Yi Zhu Lei zhang School of Environmental Science and Engineering Qingdao UniversityQingdao266071China Department of Oral and Maxillofacial Surgery The Affiliated Hospital of Qingdao UniversityQingdao266071China Centre for Catalysis and Clean Energy Gold Coast CampusGriffith UniversitySouthportQLD4222Australia Center of Advanced Energy Technology and Electrochemistry Institute of Advanced Interdisciplinary StudiesSchool of Chemistry and Chemical EngineeringChongqing UniversityChongqing400044China Institute of Energy Materials Science University of Shanghai for Science and TechnologyShanghai200093China

A flexible carbon fiber-confined yolk-shelled silicon-based composite is reported as an anode material for lithium storage *** nanoparticles(Si NPs)are confined by the N-doped hollow carbon cages(SiNHC)and these uniform dispersed yolk-shell-structured Si-NHC units were encapsulated by the carbon fibers within an interconnected three-dimensional(3D)framework(Si-NHC@CNFs).For the encapsulated yolkshelled Si-NHC,the void space between the inner Si NPs and outer NHC can accommodate the structural changes of Si NPs during charging/discharging processes,leading to effectively improved structural stability and cycling *** importantly,all the Si-NHC units were bridged together through a conductive CNFs"highway"to enhance the overall conductivity and tap density *** observed,Si-NHC@CNFs exhibited an initial discharge capacity of 1364.1 mAh·g^(-1)at 1000 mA·g^(-1)and678.9 mAh·g^(-1)at 2000 mA·g^(-1).Furthermore,the reversible capacity was well maintained at 752.2 mAh·g^(-1)at500 mA·g^(-1)after 6000 ultra-long cycles.

关键词： Silicon ZIF-8 Carbon fibers Anode Lithium-ion battery(LIB)

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

General strategy for evaluating the d-band center shift and ethanol oxidation reaction pathway towards Pt-based electrocatalysts

引用

Science China Chemistry 2023年第1期66卷 279-288页

作者： Jin-Hong Zheng Guang Li Jun-Ming zhang Ningyan Cheng Li-Fei Ji Jian Yang Jialin zhang bin-wei zhang Yan-Xia Jiang Shi-Gang Sun State Key Laboratory of Physical Chemistry of Solid Surfaces Department of ChemistryCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China School of Chemistry and Chemical Engineering Chongqing UniversityChongqing 401331China Center of Advanced Energy Technology and Electrochemistry Institute of Advanced Interdisciplinary StudiesChongqing UniversityChongqing 400044China Key Laboratory of Magnetic Molecules&Magnetic Information Materials Ministry of Education School of Chemical and Material ScienceShanxi Normal UniversityTaiyuan 030031China Information Materials and Intelligent Sensing Laboratory of Anhui Province Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of EducationInstitutes of Physical Science and Information TechnologyAnhui UniversityHefei 230039China

The catalytic performance of Pt-based catalysts depends sensitively on their d-band ***,there are still huge challenges to evaluate their d-band centers from experimental technologies,and modulate them to analyze their selectivity in ethanol oxidation reaction(EOR).Here,Pt1Au1alloy supported on the commercial carbon material(Pt_(1)Au_(1)/C)is employed as a typical example to investigate its d-band center shift of surface Pt,and as electrocatalysts to study its selectivity towards ***,a highly reliable in situ Fourier-transform infrared spectroscopy CO-probe strategy is developed to characterize the d-band center shift of surface *** modified electronic effect and site effect of Pt_(1)Au_(1)/C dictated the adsorption configuration of intermediate species and the OH species coverage,thereby influencing its *** importantly,we developed a universal cyclic voltammetry peak differentiation fitting method as an electrochemical analysis technique to investigate CO_(2)selectivity,which is potentially extendable to other Pt-based electrocatalysts.

关键词： PtAu in situ FTIRS d-band center ethanol oxidation reaction CV peak differentiation fitting method

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

Acute Bacillus cereus endophthalmitis caused by ocular perforation injury and occult intravitreal cilium implantation:a case report

引用

International Journal of Ophthalmology(English edition) 2024年第5期17卷 976-978页

作者： Ling zhang bin Chen wei-Min He Department of Ophthalmology West China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina Department of Ophthalmology the People’s Hospital of LeshanLeshan 614000Sichuan ProvinceChina

Dear Editor,We present a case of acute Bacillus cereus(***)endophthalmitis in a patient with an intraocular perforation injury combined with occult intravitreal cilium *** endophthalmitis is a severe intraocular infection commonly caused by post-traumatic *** often leads to significant vision loss or even eye loss within 12-48h[1].The presence of an intraocular foreign body(IOFB)increases the risk of infection,while early surgical removal of IOFBs can prevent endophthalmitis,some IOFBs are difficult to detect *** Medical Ethics Review Board of West China Hospital of Sichuan University waived application for a clinical study because this was a retrospective report of a single patient based on imaging and because no human experimentation was *** patient provided written informed consent to use the imaging data for publication.

关键词： endophthalmitis ilium injuries

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

Bi-Atom Electrocatalyst for Electrochemical Nitrogen Reduction Reactions

引用

Nano-Micro Letters 2021年第7期13卷 86-90页

作者： Wenchao zhang bin-wei zhang Institute of Environmental Engineering School of Metallurgy and EnvironmentCentral South UniversityChangsha 410083HunanPeople’s Republic of China Chinese National Engineering Research Center for Control and Treatment of Heavy Metal Pollution Changsha 410083HunanPeople’s Republic of China Institute for Superconducting and Electronic Materials(ISEM) School of MechanicalMaterialsMechatronics and Biomedical EngineeringFaculty of Engineering and Information SciencesUniversity of WollongongWollongongNSW 2500Australia

The electrochemical nitrogen reduction reaction(NRR)to directly produce NH3 from N_(2) and H_(2)O under ambient conditions has attracted significant attention due to its ***,the electrochemical NRR presents several practical challenges,including sluggish reaction and low ***,bi-atom catalysts have been proposed to achieve excellent activity and high selectivity toward the electrochemical NRR by Ma and his *** could accelerate the kinetics of N_(2)-to-NH_(3) electrochemical conversion and possess better electrochemical NRR *** work sheds light on the introduction of bi-atom catalysts to enhance the performance of the electrochemical NRR.

关键词： Electrochemical nitrogen reduction reaction Bi-atom catalysts Excellent activity High selectivity

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

Multiple types of disease-associated RNAs identification for disease prognosis and therapy using heterogeneous graph learning

引用

Science China(Information Sciences) 2024年第8期67卷 341-342页

作者： Wenxiang zhang Hang wei Wenjing zhang Hao WU bin LIU School of Computer Science and Technology Beijing Institute of Technology School of Computer Science and Technology Xidian University Department of Teaching and Research Shenzhen University General Hospital Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging National-Regional Key Technology Engineering Laboratory for Medical UltrasoundSchool of Biomedical Engineering Shenzhen University Medical School Advanced Research Institute of Multidisciplinary Science Beijing Institute of Technology

Identifying disease-associated RNAs is crucial in revealing the pathogenic mechanisms of diseases [1], and biologists have made notable progress in this field [2]. However, more effective computational methods are needed to provide reference disease-associated RNAs, reducing the manpower and material resources required for biological experiments.

关键词：

来源：

同方期刊数据库

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

Saturation Estimation with Complex Electrical Conductivity for Hydrate-Bearing Clayey Sediments:An Experimental Study

引用

Journal of Ocean University of China 2024年第1期23卷 173-189页

作者： XING Lanchang zhang Shuli zhang Huanhuan WU Chenyutong WANG bin LAO Liyun wei wei HAN weifeng wei Zhoutuo GE Xinmin DENG Shaogui College of Control Science and Engineering China University of Petroleum(East China)Qingdao 266580China School of Water Energy and EnvironmentCranfield UniversityCranfield MK430ALUnited Kingdom Department of Alternative Energy PetroChina Research Institute of Petroleum Exploration&DevelopmentLangfang 065007China School of Geosciences China University of Petroleum(East China)Qingdao 266580China Laboratory for Marine Mineral Resources Qingdao National Laboratory for Marine Science and TechnologyQingdao 266071China

Clays have considerable influence on the electrical properties of hydrate-bearing *** is desirable to understand the electrical properties of hydrate-bearing clayey sediments and to build hydrate saturation(S_(h))models for reservoir evaluation and *** electrical properties of tetrahydrofuran-hydrate-bearing sediments with montmorillonite are characterized by complex conductivity at frequencies from 0.01 Hz to 1 *** effects of clay and Sh on the complex conductivity were analyzed.A decrease and increase in electrical conductance result from the clay-swelling-induced blockage and ion migration in the electrical double layer(EDL),*** quadrature conductivity increases with the clay content up to 10%because of the increased surface site density of counterions in *** the in-phase conductivity and quadrature conductivity decrease consistently with increasing Sh from 0.50 to *** sets of models for Sh evaluation were *** model based on the Simandoux equation outperforms Archie’s formula,with a root-mean-square error(E_(RMS))of 1.8%and 3.9%,respectively,highlighting the clay effects on the in-phase *** fre-quency effect correlations based on in-phase and quadrature conductivities exhibit inferior performance(E_(RMS)=11.6%and 13.2%,re-spectively)due to the challenge of choosing an appropriate pair of frequencies and intrinsic uncertainties from two *** second-order Cole-Cole formula can be used to fit the complex-conductivity *** pair of inverted Cole-Cole parameters,i.e.,characteristic time and chargeability,is employed to predict S_(h) with an E_(RMS) of 5.05%and 9.05%,respectively.

关键词： gas hydrate complex electrical conductivity hydrate-bearing clayey sediment hydrate saturation Simandoux equation frequency dispersion Cole-Cole formula

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：