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- W3087777435 abstract "Developing highly efficient nickel or iron based hydroxide electrocatalysts is primary essential but challenging for oxygen evolution reaction (OER) at ultra-high current densities. Herein, we developed a facile method to prepare nitrogen and iron doped nickel(II) hydroxide nanosheets on self-supported conductive nickel foam (denoted as Fe,N-Ni(OH)2/NF) through ammonia hydrothermal and impregnation methods. Owing to the optimization of the electronic structure by nitrogen doping and the strong synergistic effect between Fe and Ni(OH)2, the three-dimensional (3D) Fe,N-Ni(OH)2/NF nanosheets delivered superior electrocatalytic OER performances in basic solution with low potentials of 1.57 V and 1.59 V under 500 mA/cm2 and 1000 mA/cm2 respectively and robust operation for 10 h with ignored activity decay, comparing well with the potentials of previously reported NiFe based electrocatalysts as well as the benchmark commercial Ir/C/NF. In-situ Raman spectroscopy revealed that the main active species were NiOOH during the OER process. The present results are expected to provide new insights into the study of OER process towards ultra-high current densities." @default.
- W3087777435 created "2020-10-01" @default.
- W3087777435 creator A5063677973 @default.
- W3087777435 creator A5077784535 @default.
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- W3087777435 date "2021-03-01" @default.
- W3087777435 modified "2023-09-24" @default.
- W3087777435 title "Efficient electrocatalytic oxygen evolution at ultra-high current densities over 3D Fe, N doped Ni(OH)2 nanosheets" @default.
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- W3087777435 doi "https://doi.org/10.1016/j.cclet.2020.09.030" @default.
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