Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/101091
Title: In situ synthesized heteropoly acid/polyaniline/graphene nanocomposites to simultaneously boost both double layer- and pseudo-capacitance for supercapacitors
Authors: Cui, Zhiming
Guo, Chun Xian
Yuan, Weiyong
Li, Chang Ming
Issue Date: 2012
Source: Cui, Z., Guo, C. X., Yuan, W., Li, C. M. (2012). In situ synthesized heteropoly acid/polyaniline/graphene nanocomposites to simultaneously boost both double layer- and pseudo-capacitance for supercapacitors. Physical Chemistry Chemical Physics, 14(37), 12823-12828.
Series/Report no.: Physical chemistry chemical physics
Abstract: It is challenging to simultaneously increase double layer- and pseudo-capacitance for supercapacitors. Phosphomolybdic acid/polyaniline/graphene nanocomposites (PMo12–PANI/GS) were prepared by using PMo12 as a bifunctional reagent for not only well dispersing graphene for high electrochemical double layer capacitance but also in situ chemically polymerizing aniline for high pseudocapacitance, resulting in a specific capacitance of 587 F g−1, which is [similar]1.5 and 6 times higher than that of PANI/GS (392 F g−1) and GS (103 F g−1), respectively. The nanocomposites also exhibit good reversibility and stability. Other kinds of heteropolyacids such as molybdovanadophosphoric acids (PMo12−xVx, x = 1, 2 and 3) were also used to prepare PMo12−xVx–PANI/GS nanocomposites, also showing enhanced double layer- and pseudo-capacitance. This further proves the proposed concept to simultaneously boost both double layer- and pseudo-capacitance and demonstrates that it could be a universal approach to significantly improve the capacitance for supercapacitors.
URI: https://hdl.handle.net/10356/101091
http://hdl.handle.net/10220/11089
DOI: 10.1039/C2CP42022H
Rights: © 2012 The Owner Societies.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SCBE Journal Articles

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