期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 32, 期 -, 页码 9-13出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2013.03.033
关键词
Environmentally friendly; Nickel sulfides; Reduced graphene oxide; Supercapacitors
资金
- National Natural Science Foundation of China [21175129]
- National Basic Research Program of China [2011CB935800]
- Scientific and Technological Development Plan Project of Jilin Province [20100534, 20110448]
The present communication demonstrates the first environmentally friendly hydrothermal synthesis of nickel sulfide nanospheres/reduced graphene oxide (nickel sulfides/rGO) nanocomposites with the use of L-cysteine as a reducing agent, sulfur donor, and linker. The nanosphere consists of ultrafine particles leading to textural pores. The resulting nickel sulfides/rGO nanocomposites were further used as an electrode material for supercapacitors and found to exhibit very high specific capacitances of 1169 F g(-1) and 761 F g(-1) at current rates of 5 A g(-1) and 50 A g(-1), respectively, with good cycling stability. (C) 2013 Elsevier B.V. All rights reserved.
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