An autocatalytic route of CuO/CoO@SiO nanocapsules as excellent performance supercapacitor materials

A novel supercapacitor material was synthesized from SiO 2 -coated Co 3 O 4 and CuO nanoparticles. These nanocapsules provided large specific surface area, fast electron transport, good mechanical stability and high electrochemical activity. The specific capacitance at 1 A g −1 was 835.4 F g −1 , an...

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Bibliographic Details
Published in:New journal of chemistry 2020-07, Vol.44 (29), p.1243-12434
Main Authors: Chen, Yu, Ma, Qinghai, Li, Zhenhui, Cui, Fang, Xu, Linxu, Zhang, Jiajia, Chai, Zhiyi, Ma, Wenlu, Cui, Tieyu
Format: Article
Language:English
Online Access:Get full text
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Summary:A novel supercapacitor material was synthesized from SiO 2 -coated Co 3 O 4 and CuO nanoparticles. These nanocapsules provided large specific surface area, fast electron transport, good mechanical stability and high electrochemical activity. The specific capacitance at 1 A g −1 was 835.4 F g −1 , and it had excellent cycling performance. Nanocapsules prepared with silica as a carrier and coated with Co 3 O 4 and CuO nanoparticles are used for high-performance supercapacitors.
ISSN:1144-0546
1369-9261
DOI:10.1039/d0nj02356f