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Title of Journal: J Solid State Electrochem

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Abbravation: Journal of Solid State Electrochemistry

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Springer-Verlag

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DOI

10.1006/acha.1995.1003

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1433-0768

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Effect of surfactant on the morphology and capacit

Authors: LingBin Kong Chao Lu MaoCheng Liu YongChun Luo Long Kang
Publish Date: 2013/02/09
Volume: 17, Issue: 5, Pages: 1463-1471
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Abstract

A promising nickel cobaltite oxide NiCo2O4 composite electrode material was successfully synthesized by a solgel method and followed by a simple sintering process The microstructure and surface morphology of NiCo2O4 modified by hexadecyltrimethylammonium bromide CTAB and polyvinyl alcohol were physically characterized by powder Xray diffraction and scanning electron microscopy Meanwhile electrochemical performance was widely investigated in 2 M KOH aqueous electrolyte using cyclic voltammetry galvanostatic chargedischarge test and electrochemical impedance spectroscopy The results show that evident porous microstructure was successfully fabricated by CTAB The NiCo2O4 controlled by CTAB exhibited highly specific capacitance of 1440 F g−1 at a current density of 5 mA cm−2 Remarkably it still displays desirable cycle retention of 941  over 1000 cycle numbers at a current density of 20 mA cm−2 The excellent electrochemical performance suggests its potential application in electrode material for electrochemical capacitorsThis work was supported by the National Natural Science Foundation of China no 21163010 the Key Project of Chinese Ministry of Education no 212183 the Natural Science Funds for Distinguished Young Scholars of Gansu Province no 1111RJDA012 and the Program for Hongliu Outstanding Talents in Lanzhou University of Technology no J201102

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