Journal
RARE METALS
Volume 37, Issue 2, Pages 107-117Publisher
NONFERROUS METALS SOC CHINA
DOI: 10.1007/s12598-017-0983-9
Keywords
Few-layer MoS2 nanosheets; Carbon; Co-modified; TiO2 nanosheets; Lithium-ion battery anodes
Funding
- National Natural Science Foundation of China [51472177]
- China-EU Science and Technology Cooperation Project [SQ2013ZOA100006]
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Carbon and few-layer MoS2 nanosheets co-modified TiO2 nanocomposites (defined as MoS2-C@TiO2) were prepared through a facile one-step pyrolysis reaction technique. In this unique nanostructure, the TiO2 nanosheets with stable structure serve as the backbones, and carbon coating and few-layer MoS2 tightly adhere onto the surface of the TiO2. It needs to be pointed out that the carbon coating improves the overall electronic conductivity and the few-layer MoS2 facilitates the diffusion of lithium ions and offers more active sites for lithium-ion storage. As a result, when evaluated as lithium-ion battery anodes, the MoS2-C@TiO2 nanocomposites exhibit markedly enhanced lithium storage capability compared with pure TiO2. A high specific capacity of 180 mA.h.g(-1) has been achieved during the preliminary cycles, and the specific capacity can maintain 160 mA.h.g(-1) at a high current density of 1C (1C=167 mA.g(-1)) even after 300 discharge/charge cycles, indicating the great potential of the MoS2-C@TiO2 on energy storage.
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