Facile synthesis of anatase TiO(2) quantum-dot/graphene-nanosheet composites with enhanced electrochemical performance for lithium-ion batteries

Runwei Mo; Zhengyu Lei; Kening Sun; David Rooney

doi:10.1002/adma.201304338

Facile synthesis of anatase TiO(2) quantum-dot/graphene-nanosheet composites with enhanced electrochemical performance for lithium-ion batteries

Adv Mater. 2014 Apr 2;26(13):2084-8. doi: 10.1002/adma.201304338. Epub 2013 Dec 17.

Authors

Runwei Mo¹, Zhengyu Lei, Kening Sun, David Rooney

Affiliation

¹ Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology, Harbin, 150001, China.

PMID: 24347361
DOI: 10.1002/adma.201304338

Abstract

A facile method to synthesize well-dispersed TiO2 quantum dots on graphene nanosheets (TiO2 -QDs/GNs) in a water-in-oil (W/O) emulsion system is reported. The TiO2 /graphene composites display high performance as an anode material for lithium-ion batteries (LIBs), such as having high reversible lithium storage capacity, high Coulombic efficiency, excellent cycling stability, and high rate capability. The excellent electrochemical performance and special structure of the composites thus offer a way to prepare novel graphene-based electrode materials for high-energy-density and high-power LIBs.

Keywords: TiO2 quantum dots; emulsion technique; graphene; lithium-ion batteries.

Publication types

Research Support, Non-U.S. Gov't