title: NiS hollow spheres for high-performance supercapacitors and non-enzymatic glucose sensors.
abstract: α-NiS and β-NiS hollow spheres were successfully synthesized via the Kirkendall effect under different hydrothermal conditions. The obtained α-NiS and β-NiS hollow spheres were evaluated as electrode materials for supercapacitors. Importantly, the α-NiS hollow sphere electrode has a large specific capacitance (562.3 F g(-1) at 0.60 A g(-1)) and good cycling property (maintaining about 97.5% at 2.4 A g(-1) after 1000 cycles). Furthermore, the as-prepared α-NiS and β-NiS hollow spheres were successfully applied to construct electrochemical glucose sensors. Especially, the α-NiS hollow spheres exhibit a good sensitivity (155 μA mM(-1)  cm(-2)), low detection limit (0.125 μM), and a wide linear range.
authors: College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, 455002, Henan (P. R. China).
authors: Chengzhen
authors: C
authors: Wei
authors: Cheng
authors: C
authors: Cheng
authors: Junhong
authors: J
authors: Zhao
authors: Yan
authors: Y
authors: Wang
authors: Yanyan
authors: Y
authors: Cheng
authors: Yazhou
authors: Y
authors: Xu
authors: Weimin
authors: W
authors: Du
authors: Huan
authors: H
authors: Pang
keywords: NiS; core-shell structures; hollow spheres; non-enzymatic glucose sensors; supercapacitors