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Facile and Eco-Friendly Synthesis of Finger-Like Co?O? Nanorods for Electrochemical Energy Storage.

ABSTRACT: Co?O? nanorods were prepared by a facile hydrothermal method. Eco-friendly deionized water rather than organic solvent was used as the hydrothermal media. The as-prepared Co?O? nanorods are composed of many nanoparticles of 30-50 nm in diameter, forming a finger-like morphology. The Co?O? electrode shows a specific capacitance of 265 F g-1 at 2 mV s-1 in a supercapacitor and delivers an initial specific discharge capacity as high as 1171 mAh g-1 at a current density of 50 mA g-1 in a lithium ion battery. Excellent cycling stability and electrochemical reversibility of the Co?O? electrode were also obtained.

SUBMITTER: Sun S 

PROVIDER: S-EPMC5304806 | biostudies-other | 2015 Dec

REPOSITORIES: biostudies-other

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Facile and Eco-Friendly Synthesis of Finger-Like Co₃O₄ Nanorods for Electrochemical Energy Storage.

Sun Shijiao S   Zhao Xiangyu X   Yang Meng M   Ma Liqun L   Shen Xiaodong X  

Nanomaterials (Basel, Switzerland) 20151217 4

Co₃O₄ nanorods were prepared by a facile hydrothermal method. Eco-friendly deionized water rather than organic solvent was used as the hydrothermal media. The as-prepared Co₃O₄ nanorods are composed of many nanoparticles of 30-50 nm in diameter, forming a finger-like morphology. The Co₃O₄ electrode shows a specific capacitance of 265 F g<sup>-1</sup> at 2 mV s<sup>-1</sup> in a supercapacitor and delivers an initial specific discharge capacity as high as 1171 mAh g<sup>-1</sup> at a current dens  ...[more]