Xiaomin Li, Wen Zhao, Rui Yin, Xiaoshuai Huang and Lei Qian
Key Laboratory for Liquid–Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, 17923 Jingshi Road, Jinan 250061, China
A polyaniline (PANI)-porous graphene (PGR) hybrid material with high capacitive performance was synthesized through electropolymerization of aniline on the PGR. The microstructure and morphologies of the PANI-PGR were characterized by field emission scanning electron microscopy, while electrochemical behaviors were measured by cyclic voltammetry and galvanostatic charge-discharge. The effects of aniline and PGR concentrations and polymerization cycles on electrochemical performances of the PANI-PGR were investigated. The results demonstrated that the prepared PANI0.05-PGR1.25-15 (0.05 M aniline, 1.25 mg·ml-1 PGR and 15 polymerization cycles) showed the highest specific capacitance of 1209 F·g-1 at 0.2 A·g-1. The specific capacitance of the obtained PANI-PGR was higher compared with other PANI materials, such as graphene (GR)-wrapped PANI nanofiber, single walled carbon nanotube/PANI, and GR-PANI nanoworm composites. The PANI0.05-PGR1.25-15 also displayed good cycle stability, retaining 92% of the initial capacitance after 1000 cycles of charge-discharge. The excellent capacitive properties were attributed to large specific surface area of the PGR and good pseudocapacitive properties of PANI.
Article type:
Research Paper
Published online:
30 Jul 2018
DOI:
10.30919/es8d743
Volume:
3
Page:
89-95
Citation:
Engineered Science, 2018, 3, 89-95
Format output:
.RIS for Reference Manager; Refworks, and Zotero;
.ENW for EndNote;
.BIB for BibTex, JabRef and Medeley;
Permissions:
Copyright
Number of downloads:
1326
Citation Information:
30
Description:
This article is cited by 30 publications.
This article is cited by 30 publications.
Copyright © 2021 Engineered Science Publisher, All Rights Reserved