Changchun Institute of Optics,Fine Mechanics and Physics,CAS
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. |
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