二次水热法制备鸟巢状TiO2/Co3O4纳米结构及其锂电性能*

doi:10.11896/j.issn.1005-023X.2017.022.002

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Abstract In this work, a TiO²/Co³O⁴ nanostructured materials was prepared through a hydrothermal process using cobalt(Ⅱ) nitrate hexahydrate, urea, and hydrothermally pre-synthesized (from TiO₂ powders and NaOH and under mechanical stirring) TiO₂ nanowires as raw materials. The composition, morphology and electrochemical performance of the product were characterized by employing X-ray diffractometer (XRD), scanning electron microscope (SEM), charging/discharging tester and electrochemical workstation. Our experiments illustrated the nest-like micromorphology, good cyclic stability and electrochemical character of this two-step hydrothermally synthesized TiO²/Co³O⁴ composites, as the electrode exhibited initial discharge and charge capacities of 777 mAh/g and 759 mAh/g, respectively, and a capacity retention of 663 mAh/g after 100 cycles during constant-current charge/discharge at 33.5 mA/g.

Key words： lithium ion battery electrochemical performance cyclic stability nest-like TiO₂ nanowire TiO²/Co³O⁴ composite two step hydrothermal synthesis

Published: 08 May 2018

CLC number:

TB332

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	Articles by authors
	ZHANG Guanqun
	XU Zhou
	LIU Jianxiong
	YANG Yanrong
	LIU Cheng
	CHENG Qi
	YU Xiaohua

Cite this article:

ZHANG Guanqun,XU Zhou,LIU Jianxiong, et al. Two step Hydrothermally Synthesized Nest like TiO₂/Co₃O₄ Nanostructures with Good Electrochemical Performance for Lithium Ion Battery[J]. Materials Reports, 2017, 31(22): 5-9.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2017.022.002 OR http://www.mater-rep.com/EN/Y2017/V31/I22/5

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