In situ synthesis of mesoporous NiMoO4 on ball milled graphene for high performance supercapacitors

Huang Qian; Lv Jinlong; Liang Tongxiang; Wang Chen

doi:10.1149/2.0261709jes

In situ synthesis of mesoporous NiMoO₄ on ball milled graphene for high performance supercapacitors

Huang Qian, Lv Jinlong, Liang Tongxiang, Wang Chen

ENG - Fracture and Reliability Research Institute

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Hydrothermal method is used to in situ synthesize mesoporous graphene@NiMoO₄ nanocomposites as supercapacitor electrodes. NiMoO₄ nanorods are formed on fresh graphene surface, while scattered NiMoO₄ nanoparticles are obtained on the surface of ball milled graphene. graphene@NiMoO₄ nanocomposites electrodes exhibit a higher electrochemical performance compared with a pure NiMoO₄ electrode, and the ball milled graphene@NiMoO₄ electrodes have the maximum specific capacitance of 2100 F g^-1 at 1 A g^-1 discharge current and maintains at least 92% of its initial capacitance after 5000 operational cycles. Such an enhanced supercapacitive performance originates from the mesoporous structure, more electroactive sites, large specific surface area, high electrical conductivity and synergistic effect between NiMoO₄ and the graphene.

Original language	English
Pages (from-to)	E173-D179
Journal	Journal of the Electrochemical Society
Volume	164
Issue number	9
DOIs	https://doi.org/10.1149/2.0261709jes
Publication status	Published - 2017

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Surfaces, Coatings and Films
Electrochemistry
Materials Chemistry

UN SDGs

This output contributes to the following Sustainable Development Goal(s)

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title = "In situ synthesis of mesoporous NiMoO4 on ball milled graphene for high performance supercapacitors",

abstract = "Hydrothermal method is used to in situ synthesize mesoporous graphene@NiMoO4 nanocomposites as supercapacitor electrodes. NiMoO4 nanorods are formed on fresh graphene surface, while scattered NiMoO4 nanoparticles are obtained on the surface of ball milled graphene. graphene@NiMoO4 nanocomposites electrodes exhibit a higher electrochemical performance compared with a pure NiMoO4 electrode, and the ball milled graphene@NiMoO4 electrodes have the maximum specific capacitance of 2100 F g-1 at 1 A g-1 discharge current and maintains at least 92% of its initial capacitance after 5000 operational cycles. Such an enhanced supercapacitive performance originates from the mesoporous structure, more electroactive sites, large specific surface area, high electrical conductivity and synergistic effect between NiMoO4 and the graphene.",

author = "Huang Qian and Lv Jinlong and Liang Tongxiang and Wang Chen",

note = "Funding Information: This work is supported by the National Natural Science Foundation of China (Grand No. 21271114 and No. 91326203) Publisher Copyright: {\textcopyright} 2017 The Electrochemical Society.",

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AU - Qian, Huang

AU - Jinlong, Lv

AU - Tongxiang, Liang

AU - Chen, Wang

PY - 2017

Y1 - 2017

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AB - Hydrothermal method is used to in situ synthesize mesoporous graphene@NiMoO4 nanocomposites as supercapacitor electrodes. NiMoO4 nanorods are formed on fresh graphene surface, while scattered NiMoO4 nanoparticles are obtained on the surface of ball milled graphene. graphene@NiMoO4 nanocomposites electrodes exhibit a higher electrochemical performance compared with a pure NiMoO4 electrode, and the ball milled graphene@NiMoO4 electrodes have the maximum specific capacitance of 2100 F g-1 at 1 A g-1 discharge current and maintains at least 92% of its initial capacitance after 5000 operational cycles. Such an enhanced supercapacitive performance originates from the mesoporous structure, more electroactive sites, large specific surface area, high electrical conductivity and synergistic effect between NiMoO4 and the graphene.

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