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Microwave-assisted synthesis of NiS2 nanostructures for supercapacitors and cocatalytic enhancing photocatalytic H2 production
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Microwave-assisted synthesis of NiS2 nanostructures for supercapacitors and cocatalytic enhancing photocatalytic H2 production
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Journal Article
Microwave-assisted synthesis of NiS2 nanostructures for supercapacitors and cocatalytic enhancing photocatalytic H2 production
2014
Overview
Uniform NiS
2
nanocubes are successfully synthesized with a microwave-assisted method. Interestingly, NiS
2
nanocubes, nanospheres and nanoparticles are obtained by controlling microwave reaction time. NiS
2
nanomaterials are primarily applied to supercapacitors and cocatalytic enhancing photocatalytic H
2
production. Different morphologies of NiS
2
nanostructures show different electrochemical and cocatalytic enhancing H
2
production activities. Benefited novel nanostructures, NiS
2
nanocube electrodes show a large specific capacitance (695 F g
−1
at 1.25 A g
−1
) and excellent cycling performance (the retention 93.4% of initial specific capacitance after 3000 cycles). More importantly, NiS
2
nanospheres show highly cocatalytic enhancing photocatalytic for H
2
evolution, in which the photocatalytic H
2
production is up to 3400 μmol during 12 hours under irradiation of visible light (λ>420 nm) with an average H
2
production rate of 283 μmol h
−1
.
Publisher
Nature Publishing Group UK,Nature Publishing Group
