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Title of Journal: J Appl Electrochem

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Abbravation: Journal of Applied Electrochemistry

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Springer Netherlands

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DOI

10.1007/bf00561780

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1572-8838

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Hydrothermal and softtemplating synthesis of meso

Authors: Rui Ding Li Qi Mingjun Jia Hongyu Wang
Publish Date: 2013/07/04
Volume: 43, Issue: 9, Pages: 903-910
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Abstract

Mesoporous nickel cobaltite NiCo2O4 nanoparticles were synthesized via a hydrothermal and softtemplating method through quasireversemicelle mechanism The physicochemical properties of the NiCo2O4 materials were characterized via Xray diffraction scanning electron microscopy Xray photoelectron spectra and nitrogen sorption isotherms measurements The electrochemical performances of the NiCo2O4 electrode were investigated by cyclic voltammetry chronopotentiometry and electrochemical impedance spectroscopy tests The obtained NiCo2O4 materials exhibit typical mesoporous structures with an average particle size of about 200 nm a specific surface area of 8863 m2 g−1 and a total pore volume of 0337 cm3 g−1 The facile electrolytes penetration for the mesoporous structures favors highperformance of the NiCo2O4 electrode The NiCo2O4 electrode shows a high specific capacitance 591 F g−1 at 1 A g−1 highrate capability 248 F g−1 at 20 A g−1 and a good cycling behavior for tested 3000 cycles indicating a promising application for electrochemical capacitorsWe gratefully acknowledge the financial support of this research by National Basic Research Program of China 2012CB932800 2011CB935702 Scientific Research Foundation for the Returned Overseas Chinese Scholars and State Education Ministry SRF for ROCS and SEM and Hundred Talents Program of Chinese Academy of Sciences

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