Redox switch of ionic transport in conductive polypyrrole-engineered unipolar nanofluidic diodes

	Redox switch of ionic transport in conductive polypyrrole-engineered unipolar nanofluidic diodes
	Zhang, Qianqian 1,2; Zhang, Zhen 3; Zhou, Hangjian 1; Xie, Zhiqiang 1,2; Wen, Liping 4; Liu, Zhaoyue 1; Zhai, Jin 1; Diao, Xungang 2
刊名	NANO RESEARCH
	2017-11-01
卷号	10 期号:11 页码:3715-3725
关键词	Redox Switch Polypyrrole Nanofluidic Diodes Ion rectificatIon Ion Gating
英文摘要	Controlling ion transport in nanoconfined spaces is a key task for the creation of smart nanofluidic devices. In this work, redox-active polypyrrole (PPy) polymers are introduced into anodic aluminum oxide (AAO) nanochannels to form smart unipolar nanofluidic diodes (UNDs) for the first time. The ionic transport behavior of the present polypyrrole-engineered UNDs can be controlled through the redox reactions of PPy. Under an applied oxidation potential, conductive PPy exhibits several redox states carrying different charges, following the formation of polarons and bipolarons with different oxidation states. Combined with the asymmetric distribution of PPy in the AAO nanochannels, the UNDs investigated here exhibit redox-switchable ion rectification and ion-gating properties. The influence of the charge asymmetry of the UNDs on their ionic transport behavior is assessed by precisely controlling the length of oxidized PPy segments in the AAO nanochannels and by carrying out theoretical simulations based on the Poisson and Nernst-Planck (PNP) equations.
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/41290]
专题	化学研究所_绿色印刷实验室
作者单位	1.Beihang Univ, Beijing Key Lab Bioinspired Energy Mat & Devices, Minist Educ,Sch Chem & Environm, Key Lab Bioinspired Smart Interfacial Sci & Techn, Beijing 100191, Peoples R China 2.Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China 3.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Key Lab Green Printing, Beijing 100190, Peoples R China 4.Chinese Acad Sci, Tech Inst Phys & Chem, Lab Bioinspired Smart Interfacial Sci, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Qianqian,Zhang, Zhen,Zhou, Hangjian,et al. Redox switch of ionic transport in conductive polypyrrole-engineered unipolar nanofluidic diodes[J]. NANO RESEARCH,2017,10(11):3715-3725.
APA	Zhang, Qianqian.,Zhang, Zhen.,Zhou, Hangjian.,Xie, Zhiqiang.,Wen, Liping.,...&Diao, Xungang.(2017).Redox switch of ionic transport in conductive polypyrrole-engineered unipolar nanofluidic diodes.NANO RESEARCH,10(11),3715-3725.
MLA	Zhang, Qianqian,et al."Redox switch of ionic transport in conductive polypyrrole-engineered unipolar nanofluidic diodes".NANO RESEARCH 10.11(2017):3715-3725.