Electrochemically Fabricated Polypyrrole-Cobalt-Oxygen Coordination Complex as High-Performance Lithium-Storage Materials

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	Electrochemically Fabricated Polypyrrole-Cobalt-Oxygen Coordination Complex as High-Performance Lithium-Storage Materials
	Guo, BK ; Kong, QY ; Zhu, Y ; Mao, Y ; Wang, ZX ; Wan, MX ; Chen, LQ
刊名	CHEMISTRY-A EUROPEAN JOURNAL
	2011
卷号	17 期号:52 页码:14878
关键词	RECHARGEABLE BATTERIES ACTIVE POLYMERS ION BATTERIES FUEL-CELLS PARTICLES CATALYSTS ANODES FILMS
ISSN号	0947-6539
通讯作者	Kong, QY: Soc Civile Synchrotron SOLEIL, St Aubin BP 48, F-91192 Gif Sur Yvette, France.
中文摘要	Current lithium-ion battery (LIB) technologies are all based on inorganic electrode materials, though organic materials have been used as electrodes for years. Disadvantages such as limited thermal stability and low specific capacity hinder their applications. On the other hand, the transition metal oxides that provide high lithium-storage capacity by way of electrochemical conversion reaction suffer from poor cycling stability. Here we report a novel high-performance, organic, lithium-storage material, a polypyrrolecobaltoxygen (PPy-Co-O) coordination complex, with high lithium-storage capacity and excellent cycling stability. Extended X-ray absorption fine structure and Raman spectroscopy and other physical and electrochemical characterizations demonstrate that this coordination complex can be electrochemically fabricated by cycling PPy-coated Co3O4 between 0.0 V and 3.0 V versus Li+/Li. Density functional theory (DFT) calculations indicate that each cobalt atom coordinates with two nitrogen atoms within the PPy-Co coordination layer and the layers are connected with oxygen atoms between them. Coordination weakens the C?H bonds on PPy and makes the complex a novel lithium-storage material with high capacity and high cycling stability.
收录类别	SCI
资助信息	National 973 Program of China [2009CB220100]; National 863 Program of China [2009AA033101]; National Natural Science Foundation of China (NSFC) [20974120]
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/37018]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Guo, BK,Kong, QY,Zhu, Y,et al. Electrochemically Fabricated Polypyrrole-Cobalt-Oxygen Coordination Complex as High-Performance Lithium-Storage Materials[J]. CHEMISTRY-A EUROPEAN JOURNAL,2011,17(52):14878.
APA	Guo, BK.,Kong, QY.,Zhu, Y.,Mao, Y.,Wang, ZX.,...&Chen, LQ.(2011).Electrochemically Fabricated Polypyrrole-Cobalt-Oxygen Coordination Complex as High-Performance Lithium-Storage Materials.CHEMISTRY-A EUROPEAN JOURNAL,17(52),14878.
MLA	Guo, BK,et al."Electrochemically Fabricated Polypyrrole-Cobalt-Oxygen Coordination Complex as High-Performance Lithium-Storage Materials".CHEMISTRY-A EUROPEAN JOURNAL 17.52(2011):14878.