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Cobalt monoxide-doped porous graphitic carbon microspheres for supercapacitor application.

ABSTRACT: A novel design and facile synthesis process for carbon based hybrid materials, i.e., cobalt monoxide (CoO)-doped graphitic porous carbon microspheres (Co-GPCMs), have been developed. With the synthesis strategy, the mixture of cobalt gluconate, ?-cyclodextrin and poly (ethylene oxide)???-poly (propylene oxide)??-poly (ethylene oxide)??? is treated hydrothermally, followed by pyrolysis in argon. The resultant Co-GPCMs exhibits a porous carbon matrix with localized graphitic structure while CoO nanodots are embedded in the carbon frame. Thus, the Co-GPCMs effectively combine the electric double-layer capacitance and pseudo-capacitance when used as the electrode in supercapacitor, which lead to a higher operation voltage (1.6?V) and give rise to a significantly higher energy density. This study provides a new research strategy for electrode materials in high energy density supercapacitors.

SUBMITTER: Yang ZC

PROVIDER: S-EPMC3795356 | biostudies-literature | 2013 Oct

REPOSITORIES: biostudies-literature

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Cobalt monoxide-doped porous graphitic carbon microspheres for supercapacitor application.

Yang Zheng-Chun ZC Tang Chun-Hua CH Zhang Yu Y Gong Hao H Li Xu X Wang John J

Scientific reports 20131011

A novel design and facile synthesis process for carbon based hybrid materials, i.e., cobalt monoxide (CoO)-doped graphitic porous carbon microspheres (Co-GPCMs), have been developed. With the synthesis strategy, the mixture of cobalt gluconate, α-cyclodextrin and poly (ethylene oxide)₁₀₆-poly (propylene oxide)₇₀-poly (ethylene oxide)₁₀₆ is treated hydrothermally, followed by pyrolysis in argon. The resultant Co-GPCMs exhibits a porous carbon matrix with localized graphitic structure while CoO na ...[more]

PMID: 24113335

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