期刊
ELECTROCHIMICA ACTA
卷 292, 期 -, 页码 895-902出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2018.09.194
关键词
Sodium ion batteries; Anode; CuCo2S4; Reduced graphene oxide; Nanocomposites
资金
- National Natural Science Foundation of China [51602193]
The CuCo2S4/reduced graphene oxide (rGO) nanocomposites were synthesized by a simple one-step solvothermal method. The composition and structural features of the CuCo2S4/rGO were researched by XRD, SEM, TEM, BET, XPS and Raman spectroscopy. As an anode material for sodium ion batteries (SIBs), CuCo2S4/rGO shows the notably enhanced Na-storage performance compared to single CuCo2S4. The reversible specific capacity of CuCo2S4/rGO keeps 433 mAh g(-1) at 100 mA g(-1) after 50 cycles. Furthermore the CuCo2S4/rGO shows good rate capability with specific capacity of 336 mAh g(-1) at 1000 mA g(-1). The excellent electrochemical properties of CuCo2S4/rGO nanocomposites forecast that they will be promising anode materials for SIBs. (C) 2018 Elsevier Ltd. All rights reserved.
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