Journal
MATERIALS RESEARCH BULLETIN
Volume 48, Issue 4, Pages 1575-1580Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2012.12.046
Keywords
Composites; Chemical synthesis; Electrochemical properties
Categories
Funding
- National Natural Science Foundation of China [21101014, 21273022, 51272030]
- Beijing Municipal Natural Science Foundation [2112022]
- Fundamental Research Funds for the Central Universities
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Graphene-based metals and their oxides usually exhibit enhanced electrochemical behavior in lithium-ion batteries due to the outstanding properties of graphene. Moreover, the structure and morphology of electrodes can also take an important role in their electrochemical properties. Herein we describe a facile synthesis of graphene-Sn composites containing ca. 3-6 nm diameter mesopores formed by aggregation of Sn nanoparticles on the graphene surface. These mesoporous composites with large surface area deliver higher capacity and better cycle performance in comparison with pristine Sn particles. Furthermore, the mesoporous composites treated under hydrothermal treatment exhibit higher rechargeable capacities and cycle performances. (C) 2012 Elsevier Ltd. All rights reserved.
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