Polyaniline-Grafted Graphene Hybrid with Amide Groups and Its Use in Supercapacitors

	Polyaniline-Grafted Graphene Hybrid with Amide Groups and Its Use in Supercapacitors
	An J. W.; Liu J. H.; Zhou Y. C.; Zhao H. F.; Ma Y. X.; Li M. L.; Yu M.; Li S. M.
	2012
发表期刊	Journal of Physical Chemistry C
ISSN	1932-7447
卷号	116 期号:37 页码:19699-19708
摘要	Unlike conventional routes for preparing graphene/polyaniline (G/PANI) composites coupled by van der Waals forces, an approach to graft polyaniline (PANI) nanofibers onto graphene to acquire a polyaniline-graphene (PANI-G) hybrid connected by amide groups is described in this study. The chemical bonding between graphene and PANI is confirmed by infrared spectroscopy and X-ray photoelectron spectroscopy. The Raman spectrum of PANI-G hybrid demonstrates a close interaction between graphene and PANI. Electrochemical tests show that PANI-G hybrid has a high capacitance (623.1 F/g) at a current density of 0.3 A/g,, higher than that in G/PANI composites reported previously. In addition, the retained capacitance of the PANI-G hybrid in the long term charge/discharge cycling test reached as high as 510 F/g at current density of 50 A/g, suggesting its potential use in supercapacitors. First-principle calculations were carried out to study the electronic structures of PANI-G hybrid. The results show that the carbonyl group in the amide linkage plays a key role in the formation of pi-conjugated structure, facilitates charge transfer, and consequently improves capacitance and cycling ability.
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/34507
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	An J. W.,Liu J. H.,Zhou Y. C.,et al. Polyaniline-Grafted Graphene Hybrid with Amide Groups and Its Use in Supercapacitors[J]. Journal of Physical Chemistry C,2012,116(37):19699-19708.
APA	An J. W..,Liu J. H..,Zhou Y. C..,Zhao H. F..,Ma Y. X..,...&Li S. M..(2012).Polyaniline-Grafted Graphene Hybrid with Amide Groups and Its Use in Supercapacitors.Journal of Physical Chemistry C,116(37),19699-19708.
MLA	An J. W.,et al."Polyaniline-Grafted Graphene Hybrid with Amide Groups and Its Use in Supercapacitors".Journal of Physical Chemistry C 116.37(2012):19699-19708.