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Title: | Polyaniline/graphene nanocomposites synthesized by in situ high gravity chemical oxidative polymerization for supercapacitor |
Authors: | Zhao, Yibo Arowo, Moses NyoTonglo Wu, Wei Zou, Haikui Chen, Jianfeng Chu, Guangwen |
Keywords: | Polyaniline Graphene Nanocomposites Supercapacitor |
Issue Date: | 2015 |
Publisher: | Elsevier |
Abstract: | Polyaniline/graphene (PANI/GN) nanocomposites were synthesized by in situ high gravity chemical oxidative polymerization in a rotating packed bed (RPB). The effects of graphene dosage, ammonium persulfate/aniline mole ratio, aniline concentration and reactor type on their morphology and electrochemical performances were discussed in detail. Results indicated that this process can synthesize PANI/GN nanocomposites easily under relatively extensive conditions. Particularly, it was demonstrated that it is appropriate for higher aniline concentration condition, which is favorable for large scale production. Furthermore, RPB produced PANI/GN nanocomposites of more uniform morphology and thinner coating than those synthesized in a stirred tank reactor (STR). These advantages resulted in nanocomposites of higher specific capacitance of up to 403 F/g as compared to 255 F/g for those of STR at 0.5 A/g. This process is not only simple and efficient, but also has a good prospect for industrial application. |
URI: | https://doi.org/10.1016/j.jiec.2014.11.005 http://ir.mu.ac.ke:8080/jspui/handle/123456789/5422 |
Appears in Collections: | School of Engineering |
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