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Three-dimensional graphene nanosheets supported by NiO/Si-MCP as electrode materials for high-performance supercapacitors
Qiqihar Univ, Coll Commun & Elect Engn, Qiqihar 161006, Heilongjiang, Peoples R China..
Qiqihar Univ, Coll Commun & Elect Engn, Qiqihar 161006, Heilongjiang, Peoples R China..
Mudanjiang Med Coll, Qiqihar 157011, Heilongjiang, Peoples R China..
Qiqihar Univ, Coll Commun & Elect Engn, Qiqihar 161006, Heilongjiang, Peoples R China..
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2017 (English)In: Ionics (Kiel), ISSN 0947-7047, E-ISSN 1862-0760, Vol. 23, no 8, 2185-2191 p.Article in journal (Refereed) Published
Abstract [en]

A three-dimensional (3D) graphene/NiO/Si-microchannel (MCP) composite electrode is synthesized by the conventional microelectronic machining process and electrochemical exfoliation technology for electrochemical capacitors. SEM, AFM, and Raman scattering are used to investigate the morphology and structure, and electrochemical characterization reveals that the 3D graphene/NiO/Si-MCP has a high specific capacitance of 833 Fg-1 at a current density of 5 Ag-1 in 6 mol L-1 KOH. Moreover, good cycling performance with 92% capacitance retention after 1000 cycles is observed indicating the novel electrode has large potential in high-performance supercapacitors.

Place, publisher, year, edition, pages
2017. Vol. 23, no 8, 2185-2191 p.
Keyword [en]
Graphene/NiO/Si-MCP, Electrochemical exfoliation, Supercapacitors
National Category
Physical Chemistry Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:uu:diva-332923DOI: 10.1007/s11581-017-2050-9ISI: 000406286800027OAI: oai:DiVA.org:uu-332923DiVA: diva2:1157806
Available from: 2017-11-16 Created: 2017-11-16 Last updated: 2017-11-16Bibliographically approved

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Zhang, Zhi-Bin

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