期刊
ELECTROCHIMICA ACTA
卷 55, 期 19, 页码 5414-5419出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2010.04.067
关键词
Layered manganese oxide; Conducting polymer; Delamination/reassembling; Supercapacitor
资金
- National Natural Science Foundation of China [50773020]
- Shanghai Municipal Science and Technology Commission [0852nm02000]
- Shanghai Leading Academic Discipline Project [B502]
- Shanghai Key Laboratory Project [08DZ2230500]
A novel layered manganese oxide/poly(aniline-co-o-anisidine) nanocomposite [MnO2/P(An-co-oAs)] was successfully synthesized by a delamination/reassembling process using P(An-co-oAs) ionomer and layered manganese oxide in aqueous solution. This nanocomposite obtained was then characterized by Fourier transform infrared (FTIR) spectra, X-ray diffraction (XRD), electron microscopy (SEM), and thermogravimetric (TG) analysis. X-ray diffraction and electron microscope analysis showed that the MnO2/P(An-co-oAs) nanocomposite had a lamellar structure with increasing interlayer spacing. The MnO2/P(An-co-oAs) nanocomposite exhibited substantially improved conductivity, which was near 100 times greater than that of its pristine MnO2 (3.5 x 10(-7) S cm(-1)). The specific capacitance of the MnO2/P(An-co-oAs) nanocomposite reached 262 F g(-1) in 1 M Na2SO4 at a current density of 1 A g(-1), which was significantly higher than that of either of its two pristine materials [MnO2 (182 Fg(-1)) or P(An-co-oAs) (127 F g(-1))] owing to the synergic effect between the two pristine components. The fabrication mechanism of the nanocomposite was also proposed and discussed in this paper. (C) 2010 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据