滴加速率对TiO2/RGO复合材料结构和储钠性能的影响*

doi:10.11896/j.issn.1005-023X.2017.010.001

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Abstract With ethanol as solvent and Ti(OBu)4 as precursor, the process for preparing TiO2/reduced graphene oxide composite (TiO2/RGO) by sol-gel method and heat treatment was studied. The effect of Ti(OBu)4 feeding rate on the morphology, structure and storage properties of TiO2/RGO in the sol-gel process was studied. Results showed that the TiO2/RGO composite was composed of anatase TiO2 and reduced graphene oxide, and TiO2 concentrated at the edge of the RGO layer. Electrochemical test results showed that the initial discharge capacity and coulombic efficiency increased first and then decreased with the increase of cycle times. When the feeding rate is 1.0 mL/min, the TiO2/RGO composites possessed good performance of sodium storage, as the initial discharge capacity and initial coulombic efficiency were 140.14 mAh·g-1 and 27.92% at a current rate of 1C (1C=20 mA·g-1), as well as good cycle and rate performance.

Key words： sodium ion battery reduced graphene oxide titanium dioxide electric performance feeding rate

Published: 08 May 2018

CLC number:

O646

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	Articles by authors
	YANG Shaobin
	ZHANG Qin
	SHEN Ding
	DONG Wei
	LIU Chao

Cite this article:

YANG Shaobin,ZHANG Qin,SHEN Ding, et al. Effect of Feeding Rate on the Structure and Storage Properties of TiO2/RGO Composites[J]. Materials Reports, 2017, 31(10): 1-5.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2017.010.001 OR http://www.mater-rep.com/EN/Y2017/V31/I10/1

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