Chen JS1,2, Guan C2, Gui Y2, Blackwood DJ2.
ACS Appl Mater Interfaces. 2016 Dec 29. doi: 10.1021/acsami.6b14746. [Epub ahead of print]We report a rationally designed two-step method to fabricate self-supported Ni3S2 nanosheet arrays. We first used 2-methylimidazole (2-MI), an organic molecule commonly served as organic linkers in metal-organic frameworks (MOFs), to synthesize an α-Ni(OH)2 nanosheet array as a precursor, followed by its hydrothermal sulfidization into Ni3S2. The resulting Ni3S2 nanosheet array demonstrated superior supercapacitance properties, with a very high capacitance of about 1,000 F g-1 being delivered at a high current density of 50 A g-1 for 20,000 charge-discharge cycles. Read More