期刊
NANO RESEARCH
卷 9, 期 11, 页码 3346-3354出版社
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-016-1211-x
关键词
nickel disulfide (NiS2); iron doping; nanosheet array; water splitting; oxygen evolution reaction
类别
资金
- National Natural Science Foundation of China [21575137]
Developing efficient water-splitting electrocatalysts, particularly for the anodic oxygen evolution reaction (OER), is an important challenge in energy conversion technologies. In this study, we report the development of iron-doped nickel disulfide nanoarray on Ti mesh (Fe-0.1-NiS2 NA/Ti) via the sulfidation of its nickel-iron-layered double hydroxide precursor (NiFe-LDH NA/Ti). As a three-dimensional OER anode, Fe-0.1-NiS2 NA/Ti exhibits remarkable activity and stability in 1.0 M KOH, with the requirement of a low overpotential of 231 mV to achieve 100 mA center dot cm(-2). In addition, it exhibits excellent activity and durability in 30 wt.% KOH. Notably, this electrode is also efficient for the cathodic hydrogen evolution reaction under alkaline conditions.
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