Carbon and few-layer MoS_2 nanosheets comodified TiO_2 nanocomposites(defined as MoS_2-C@TiO_2)were prepared through a facile one-step pyrolysis reaction technique. In this unique nanostructure, the TiO_2 nanosheets with stable structure serve as the backbones, and carbon coating and few-layer MoS_2 tightly adhere onto the surface of the TiO_2. It needs to be pointed out that the carbon coating improves the overall electronic conductivity and the few-layer MoS_2 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 MoS_2-C@TiO_2 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 1 C(1 C=167 mA·g^(-1)) even after 300 discharge/charge cycles, indicating the great potential of the MoS_2-C@TiO_2 on energy storage.
展开▼