Electrochemical Energy Technology最新文献_第2页

Preparation of Ti/IrO2 Anode with Low Iridium Content by Thermal Decomposition Process: Electrochemical removal of organic pollutants in water 热分解法制备低铱Ti/IrO2阳极:电化学去除水中有机污染物

Electrochemical Energy Technology Pub Date : 2018-04-13 DOI: 10.1515/eetech-2018-0001

Asim Yaqub, M. Isa, H. Ajab, S. Kutty, E. H. Ezechi, R. Farooq

引用次数: 5

Novel optimization technique to determine polarization characteristics of a corroding metal 一种确定腐蚀金属极化特性的新型优化技术

Electrochemical Energy Technology Pub Date : 2017-12-20 DOI: 10.1515/eetech-2017-0003

Shaik Liyakhath Ahmed, Sunil Kumar Thamida, N. Narasaiah

引用次数: 2

Corrosion studies of DC reactive magnetron sputtered alumina coating on 304 SS 304 SS表面直流反应磁控溅射氧化铝涂层的腐蚀研究

Electrochemical Energy Technology Pub Date : 2017-12-20 DOI: 10.1515/eetech-2017-0001

Baskar Thangaraj, K. Mahadevan

引用次数: 2

Design and synthesis of hierarchical mesoporous WO3-MnO2 composite nanostructures on carbon cloth for high-performance supercapacitors 高性能超级电容器用碳布分层介孔WO3-MnO2复合纳米结构的设计与合成

Electrochemical Energy Technology Pub Date : 2017-12-20 DOI: 10.1515/eetech-2017-0005

P. Shinde, V. Lokhande, Amar M. Patil, T. Ji, C. Lokhande

{"title":"Design and synthesis of hierarchical mesoporous WO3-MnO2 composite nanostructures on carbon cloth for high-performance supercapacitors","authors":"P. Shinde, V. Lokhande, Amar M. Patil, T. Ji, C. Lokhande","doi":"10.1515/eetech-2017-0005","DOIUrl":"https://doi.org/10.1515/eetech-2017-0005","url":null,"abstract":"Abstract To enhance the energy density and power performance of supercapacitors, the rational design and synthesis of active electrode materials with hierarchical mesoporous structure is highly desired. In the present work, fabrication of high-performance hierarchical mesoporous WO3-MnO2 composite nanostructures on carbon cloth substrate via a facile hydrothermal method is reported. By varying the content of MnO2 in the composite, different WO3-MnO2 composite thin films are obtained. The formation of composite is confirmed by X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) analyses. The Brunauer-Emmett-Teller (BET) analysis reveals maximum specific surface area of 153 m2 g−1. The optimized WO3-MnO2 composite electrode demonstrates remarkable electrochemical performance with high specific capacitance of 657 F g−1 at a scan rate of 5 mV s−1 and superior longterm cycling stability (92% capacity retention over 2000 CV cycles). Furthermore, symmetric flexible solid-state supercapacitor based on WO3-MnO2 electrodes has been fabricated. The device exhibits good electrochemical performance with maximum specific capacitance of 78 F g−1 at a scan rate of 5 mV s−1 and specific energy of 10.8 Wh kg−1 at a specific power of 0.65 kW kg−1. The improved electrochemical performance could be ascribed to the unique combination of multivalence WO3 and MnO2 nanostructures and synergistic effect between them","PeriodicalId":443383,"journal":{"name":"Electrochemical Energy Technology","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114315828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

TiO2-nanowire/MWCNT composite with enhanced performance and durability for polymer electrolyte fuel cells 用于聚合物电解质燃料电池的tio2 -纳米线/MWCNT复合材料具有增强的性能和耐久性

Electrochemical Energy Technology Pub Date : 2017-12-20 DOI: 10.1515/eetech-2017-0002

S. Selvaganesh, P. Dhanasekaran, S. Bhat

{"title":"TiO2-nanowire/MWCNT composite with enhanced performance and durability for polymer electrolyte fuel cells","authors":"S. Selvaganesh, P. Dhanasekaran, S. Bhat","doi":"10.1515/eetech-2017-0002","DOIUrl":"https://doi.org/10.1515/eetech-2017-0002","url":null,"abstract":"Abstract Durability is a major issue and has been the growing focus of research for the commercialization of polymer electrolyte fuel cells (PEFCs). Corrosion of carbon support is a key parameter as it triggers the Pt catalyst degradation and affects cell performance, which in turn affects the longevity of the cells. Herein, we describe a hybrid composite support of TiO2-nanowires and Multiwalled carbon nanotubes (MWCNTs) that offers resistance to corrosion under stressful operating conditions. Titania nanowireswhich have been shown to be more efficient and catalytically active than spherically shaped TiO2. TiO2-MWCNT composites are prepared through a hydrothermal method, followed by Pt deposition using a polyol method. Crystal structure, morphology, and oxidation state are examined through various characterization techniques. Electrochemical performance of TiO2-nanowire/MWCNT composite-supported Pt at various ratios of TiO2/MWCNT is assessed in PEFCs. Pt on support with optimum composition of TiO2-nanowires to MWCNTs exhibits fuel cell performance superior to Pt onMWCNTs. Accelerated stress testing (AST) between 1 and 1.5 V reveals that the designed catalyst on nanocomposite support possesses superior electrochemical activity and shows only 16% loss in catalytic activity in relation to 35% for Pt/MWCNTs even after 6000 potential cycles. Subsequently, the samples were characterized after AST to correlate the loss in fuel cell performance","PeriodicalId":443383,"journal":{"name":"Electrochemical Energy Technology","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134175702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Electrochemical synthesis of hydrogen with depolarization of the anodic process 电化学合成氢的阳极去极化过程

Electrochemical Energy Technology Pub Date : 2016-05-13 DOI: 10.1515/eetech-2016-0003

G. Tulskiy, A. Tulskaya, L. Skatkov, V. Gomozov, S. Deribo

引用次数: 4

Polymer coated Capacitive Deionization Electrode for Desalination: A mini review 海水淡化用聚合物包覆电容去离子电极综述

Electrochemical Energy Technology Pub Date : 2016-02-01 DOI: 10.1515/eetech-2016-0001

Mahendra S. Gaikwad, C. Balomajumder

引用次数: 22

The role of the solvent in PMMA gel polymer electrolytes 溶剂在PMMA凝胶聚合物电解质中的作用

Electrochemical Energy Technology Pub Date : 2016-01-28 DOI: 10.1515/eetech-2016-0002

J. Vondrak, M. Musil, M. Sedlaříková, R. Kořínek, K. Bartusek, A. Fedorková

引用次数: 0

The modeling gap: What we are missing between molecular dynamics of electrode reactions and simulation of battery packs 建模差距:我们在电极反应的分子动力学和电池组模拟之间缺少什么

Electrochemical Energy Technology Pub Date : 2016-01-23 DOI: 10.1515/eetech-2016-0005

R. Holze

{"title":"The modeling gap: What we are missing between molecular dynamics of electrode reactions and simulation of battery packs","authors":"R. Holze","doi":"10.1515/eetech-2016-0005","DOIUrl":"https://doi.org/10.1515/eetech-2016-0005","url":null,"abstract":"At the very beginning (and still thereafter) electrodes (not exactly the proper designation following W. Nernst) for electrolytic and galvanic processes (think of chloralkaline, aluminum production, copper refining) were flat and smooth ones, only some coarse surface structuring supporting gas bubble transport was applied sometimes. On the contrary electrodes in electrochemical conversion and storage devices were non-flat (with the notable exception of lithium, zinc and copper in primary batteries). Even today this contrast persists, only recently packed bed electrodes, i.e. porous bodies, have been suggested for some electroorganic processes [1]. The reasons are wellknown: Many of the electrode reactions in the latter devices proceed at fairly low rates causing possibly large charge transfer overpotentials. And because overpotentials (in this case more precisely charge transfer or activation overpotentials) are related by the Butler-Volmer equation to the charge transfer current density increasing the operating surface area is the most obvious way to smaller overpotentials. These porous electrodes provide further benefits beyond the large surface area: They enable the establishment of stable three-phase boundaries in gasdiffusion electrodes. A proper distinction between these basically two classes of electrodes has never been clearly established. At first glance the flat ones can be called 2D, the non flat 3D. A rough electrode with a low roughness factor (the ratio of the true area vs. the apparent or geometric surface area; numerous methods to determine electrochemically active surface areas are known [2]) may still appear flat and may thus be assigned to the first class but where","PeriodicalId":443383,"journal":{"name":"Electrochemical Energy Technology","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132724054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Current Progress of Capacitive Deionization for Removal of Pollutant Ions 电容去离子去除污染离子的研究进展

Electrochemical Energy Technology Pub Date : 2016-01-04 DOI: 10.1515/eetech-2016-0004

Mahendra S. Gaikwad, C. Balomajumder

引用次数: 6