Journal
ELECTROCHIMICA ACTA
Volume 153, Issue -, Pages 508-514Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2014.12.043
Keywords
nickel sulfide; nanosheets array; hydrogen evolution cathode; water splitting; neutral and basic electrolytes
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In this paper, we demonstrate the first preparation of NiS2 nanosheets array on carbon cloth (NiS2 NA/CC) via sulfidization of its Ni(OH)(2) NA/CC precursor. As a 3D hydrogen evolution cathode, the NiS2 NA/CC electrode shows excellent catalytic activity and stability in neutral solutions. It needs overpotentials of 193 and 243 mV to afford current densities of 2 and 10 mA/cm(2), respectively. This electrode also works efficiently in basic solutions. (C) 2014 Elsevier Ltd. All rights reserved.
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