Morphology-controlled MnO₂-graphene oxide-diatomaceous earth 3-dimensional (3D) composites for high-performance supercapacitors
Date
2016
Authors
Wen, Z.
Li, M.
Li, F.
Zhu, S.
Liu, X.
Zhang, Y.
Kumeria, T.
Losic, D.
Gao, Y.
Zhang, W.
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Journal article
Citation
Dalton Transactions, 2016; 45(3):936-942
Statement of Responsibility
Zhong Quan Wen, Min Li, Fei Li, Shi Jin Zhu, Xiao Ying Liu, Yu Xin Zhang, Tushar Kumeria, Dusan Losic, Yang Gao, Wei Zhange and Shi Xuan He
Conference Name
Abstract
3-Dimensional (3D) composites based on a unique combination of MnO2-nanostructures, graphene oxide nanosheets and porous Diatomaceous Earth (DE) microparticles (GO-DE@MnO2) were synthesized and explored for application in high-performance supercapacitors. To explore the influence of the structural properties of MnO2 nanostructures on supercapacitor performances, several MnO2 structures with nanosheet and nanowire morphologies were synthesized and characterized. The prepared GO-DE@MnO2 composites with MnO2 nanosheets due to their higher conductivity and higher surface area showed a larger specific capacitance of 152.5 F g(-1) and a relatively better cycle stability (83.3% capacitance retention after 2000 cycles at a scan rate of 2 A g(-1)), indicating great potential for application in supercapacitors.
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This journal is © The Royal Society of Chemistry 2016