期刊
ELECTROCHIMICA ACTA
卷 158, 期 -, 页码 321-326出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2015.01.146
关键词
SnO2; Nanowire arrays; Mesoporous carbon; Lithium-ion battery
资金
- National Natural Science Foundation of China [51173074, 51273158]
- Key Project of Chinese Ministry of Education [212099]
- Promotive Research Fund for Young and Middle aged Scientists of Shandong Province [BS2012CL010]
- Ph.D. Programs Foundation of Ministry of Education of China [20120201120048]
- Natural Science Basis Research Plan in Shaanxi Province of China [2012JQ6003]
Carbon-supported SnO2 nanowire arrays were synthesized by a facile strategy using self-assembled mesoporous carbon as template followed by partial removal of the carbon. The as-obtained materials were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), thermogravimetric analysis (TGA) and nitrogen adsorption. The resulting products possess a large specific surface area due to the free interspaces between the nanowires. When evaluated as anode materials for lithium-ion batteries, the carbon-supported SnO2 nanowires can deliver large reversible capabilities with excellent cycling performance on account of the mesoporous carbon matrix, which can be served as a buffering layer to relax the stress, reduce the volume variation, and protect the SnO2 nanowires from severe structural degradation during the insertion-deinsertion process of lithium ions. (C) 2015 Elsevier Ltd. All rights reserved.
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