期刊
CHEMISTRY-AN ASIAN JOURNAL
卷 10, 期 3, 页码 679-686出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.201403198
关键词
core-shell structures; hollow spheres; NiS; nonenzymatic glucose sensors; supercapacitors
资金
- Program for New Century Excellent Talents of the University in China [NCET-13-0645]
- National Natural Science Foundation of China (NSFC) [21201010, U1304504, U1404203]
- Program for Innovative Research Team (in Science and Technology) in University of Henan Province [14IRTSTHN004]
- Science&Technology Foundation of Henan Province [122102210253, 13A150019, 142102210587, 14B150001]
- China Postdoctoral Science Foundation [2012M521115]
- opening research foundations of the State Key Laboratory of Coordination Chemistry
alpha-NiS and beta-NiS hollow spheres were successfully synthesized via the Kirkendall effect under different hydrothermal conditions. The obtained a-NiS and b-NiS hollow spheres were evaluated as electrode materials for supercapacitors. Importantly, the a-NiS hollow sphere electrode has a large specific capacitance (562.3 Fg(-1) at 0.60 Ag-1) and good cycling property (maintaining about 97.5% at 2.4 Ag 1 after 1000 cycles). Furthermore, the as-prepared a-NiS and beta-NiS hollow spheres were successfully applied to construct electrochemical glucose sensors. Especially, the a-NiS hollow spheres exhibit a good sensitivity (155 mAmM(-1) cm(-2)), low detection limit (0.125 mm), and a wide linear range.
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