Bi-metallic nitroxide nanodot-decorated tri-metallic sulphide nanosheets by on-electrode plasma-hydrothermal sprouting for overall water splitting
Bi-metallic nitroxide nanodot-decorated tri-metallic sulphide nanosheets by on-electrode plasma-hydrothermal sprouting for overall water splitting
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双金属硝基氧纳米点装饰的三金属硫化物纳米片通过电极上等离子体水热萌发实现整体水分解
DOI:
10.1016/j.apcatb.2019.118254
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发表时间:
2020-02
期刊:
影响因子:
--
通讯作者:
Kostya Ken Ostrikov
中科院分区:
文献类型:
--
作者:
Qing Zhang;Wei Chen;Guangliang Chen;Jun Huang;Changsheng Song;Sijun Chu;Rui Zhang;Guoxu Wang;Chaorong Li;Kostya Ken Ostrikov
Water electrolysis using non-precious transition metal-based electrocatalysts is one of the most promising ways for renewable hydrogen energy. Herein, we develop high-performance catalysts of trimetallic sulfide (Ni3S2-FeS-CoS) nanosheets decorated with bimetallic-nitroxide (NiCo(N,O)x) nanodots on a 3D NiFeCo foam byin situfabrication with approaches of the dielectric barrier discharge (DBD) plasma and hydrothermal sulphurization. The resulting catalyst shows excellent electrocatalytic activity for overall water splitting in alkaline medium, with the overpotentials 82 m V for hydrogen evolution reaction (HER) and 170 m V for oxygen evolution reaction (OER) at a current density of 10 mA cm−2(j10), which are very competitive to most recent non-noble-metal electrocatalysts. Specially, the nanodots help achieve ultra-stable electrocatalytic performance evidenced by negligible changes for the physico-chemical structure of catalyst after a harsh HER or OER test over 50 h. Our results offer a versatile approach for the development of next-generation electrocatalysts for hydrogen economy and other applications.
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影响因子:
16.6
作者:
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通讯作者:
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影响因子:
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影响因子:
--
作者:
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