Electrochemical mechanism of ion current rectification of polyelectrolyte gel diodes

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	Electrochemical mechanism of ion current rectification of polyelectrolyte gel diodes
	Yamamoto, T; Doi, M
刊名	NATURE COMMUNICATIONS
	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
ISSN号	2041-1723
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.
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.
学科主题	Physics
收录类别	SCI
资助信息	Chinese Central Government in the program of "Thousand talents''; 111 project [B14009]
原文出处	http://dx.doi.org/10.1038/ncomms5162
语种	英语
WOS记录号	WOS:000338838500018
公开日期	2015-06-03
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/15747]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Yamamoto, T,Doi, M. Electrochemical mechanism of ion current rectification of polyelectrolyte gel diodes[J]. NATURE COMMUNICATIONS,2014,5(-):4162.
APA	Yamamoto, T,&Doi, M.(2014).Electrochemical mechanism of ion current rectification of polyelectrolyte gel diodes.NATURE COMMUNICATIONS,5(-),4162.
MLA	Yamamoto, T,et al."Electrochemical mechanism of ion current rectification of polyelectrolyte gel diodes".NATURE COMMUNICATIONS 5.-(2014):4162.