Carbon nanotube-polypyrrole core-shell sponge and its application as   highly compressible supercapacitor electrode

doi:10.1007/s12274-013-0388-5

CORC > 北京大学 > 工学院

	Carbon nanotube-polypyrrole core-shell sponge and its application as highly compressible supercapacitor electrode
	Li, Peixu ; Shi, Enzheng ; Yang, Yanbing ; Shang, Yuanyuan ; Peng, Qingyu ; Wu, Shiting ; Wei, Jinquan ; Wang, Kunlin ; Zhu, Hongwei ; Yuan, Quan ; Cao, Anyuan ; Wu, Dehai
刊名	nano research
	2014
关键词	carbon nanotube sponge polypyrrole core-shell configuration compressible electrode supercapacitor HIGH-PERFORMANCE SUPERCAPACITOR ENERGY DENSITY SOLID-STATE COMPOSITE FILMS POWER ARCHITECTURE
DOI	10.1007/s12274-013-0388-5
英文摘要	A carbon nanotube (CNT) sponge contains a three-dimensional conductive nanotube network, and can be used as a porous electrode for various energy devices. We present here a rational strategy to fabricate a unique CNT@polypyrrole (PPy) core-shell sponge, and demonstrate its application as a highly compressible supercapacitor electrode with high performance. A PPy layer with optimal thickness was coated uniformly on individual CNTs and inter-CNT contact points by electrochemical deposition and crosslinking of pyrrole monomers, resulting in a core-shell configuration. The PPy coating significantly improves specific capacitance of the CNT sponge to above 300 F/g, and simultaneously reinforces the porous structure to achieve better strength and fully elastic structural recovery after compression. The CNT@PPy sponge can sustain 1,000 compression cycles at a strain of 50% while maintaining a stable capacitance (> 90% of initial value). Our CNT@PPy core-shell sponges with a highly porous network structure may serve as compressible, robust electrodes for supercapacitors and many other energy devices.; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; SCI(E); 中国科学引文数据库(CSCD); 9; ARTICLE; anyuan@pku.edu.cn; wdh-dme@tsinghua.edu.cn; 2; 209-218; 7
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/215904]
专题	工学院
推荐引用方式 GB/T 7714	Li, Peixu,Shi, Enzheng,Yang, Yanbing,et al. Carbon nanotube-polypyrrole core-shell sponge and its application as highly compressible supercapacitor electrode[J]. nano research,2014.
APA	Li, Peixu.,Shi, Enzheng.,Yang, Yanbing.,Shang, Yuanyuan.,Peng, Qingyu.,...&Wu, Dehai.(2014).Carbon nanotube-polypyrrole core-shell sponge and its application as highly compressible supercapacitor electrode.nano research.
MLA	Li, Peixu,et al."Carbon nanotube-polypyrrole core-shell sponge and its application as highly compressible supercapacitor electrode".nano research (2014).