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题名: Electrochemical mechanism of ion current rectification of polyelectrolyte gel diodes
作者: Yamamoto, T;  Doi, M
刊名: NATURE COMMUNICATIONS
出版日期: 2014
卷号: 5, 期号:-, 页码:4162
关键词: MULTISCALE PHYSICAL MODEL ;  WATER ELECTROLYZER ;  TRANSIENT ANALYSIS ;  BIPOLAR MEMBRANES ;  ELECTRIC-FIELDS ;  GENERATION ;  TRANSISTORS ;  TRANSPORT ;  NANOPORES ;  COLLAPSE
学科分类: Physics
DOI: 10.1038/ncomms5162
通讯作者: Yamamoto, T (reprint author), Beihang Univ, Ctr Soft Matter Phys & its Applicat, Sch Chem & Environm, Xueyuan Rd 37, Beijing 100191, Peoples R China.
部门归属: [Yamamoto, Tetsuya
英文摘要: Polyelectrolyte gel diodes that are double layers of two oppositely charged polyelectrolyte gels, sandwiched by two symmetric electrodes, are emergent ionic devices. These diodes are designed to rectify ion currents with a physical mechanism that is analogous to conventional semiconductor diodes-the asymmetry in the permeability of ions across the interfaces between the two oppositely charged gels. Here we show that polyelectrolyte gel diodes indeed rectify steady currents with a physical mechanism that is very different from conventional diodes by using a simple electrochemical model; electric currents are limited by electrochemical reactions that are driven by potential drops at electrodes and these potential drops markedly change with changing the direction of applied voltages due to the redistribution of non-reactive counterions, leading to rectified ion currents. This concept is relatively generic and thus may provide insight in the physics of analogous ionic and biomimetic systems that show electrochemical reactions.
资助者: Chinese Central Government in the program of "Thousand talents''; 111 project [B14009]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000338838500018
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15747
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Recommended Citation:
Yamamoto, T,Doi, M. Electrochemical mechanism of ion current rectification of polyelectrolyte gel diodes[J]. NATURE COMMUNICATIONS,2014,5(-):4162.
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