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  • Hierarchical CoS2/Ni3S2/CoN...
    Lee, Husileng; Wu, Xiujuan; Ye, Qilun; Wu, Xingqiang; Wang, Xiaoxiao; Zhao, Yimeng; Sun, Licheng

    Chemical communications (Cambridge, England), 02/2019, Volume: 55, Issue: 11
    Journal Article

    Herein, we have reported an easily synthesized CoS2/Ni3S2/CoNiOx water oxidation catalyst with excellent catalytic activity and superior durability. The as-prepared catalyst required overpotential (η) as low as 256 mV to exhibit a current density of 10 mA cm−2 in 1.0 M KOH. Remarkably, it sustained a current density of 1 A cm−2 for one week in 30% KOH solution with only 25 mV increment of η. Thus, it is a hopeful candidate as a highly-effective water oxidation electrode in practical applications.