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论文类型：期刊论文

发表时间：2013-07-15

发表刊物：APPLIED SURFACE SCIENCE

收录刊物：SCIE、EI

卷号：277

页面范围：268-271

ISSN号：0169-4332

关键字：Copper sulfide; Hierarchical structures; Formation mechanism; Electrochemical properties

摘要：Novel stick-like CuS hierarchical structures have been fabricated by a hydrothermal approach use beta-cyclodextrin as ligand and structure-directing agent. SEM and TEM characterizations show that the CuS stick-like structures are composed of tens to hundreds of well-arranged and self-assembled nanoplates with a thickness of about 25 nm. The mechanism for the formation of the final stick-like hierarchical structures is proposed and discussed. beta-cyclodextrin is found to be the key factor in controlling the morphologies. Meanwhile, the possibility of using CuS as the electrode material for lithium ion batteries (LIBs) is studied. Electrochemical measurements reveal that the as-prepared CuS exhibits outstanding cycle stability, indicating that it might find possible application as a cathode material for LIBs in the long term. (C) 2013 Elsevier B.V. All rights reserved.