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- W4281694810 abstract "The development of hydrogen energy is limited by the high cost of platinum group metals (PGM). There is an urgent need to design efficient PGM-free electrocatalysts in the hydrogen electrode. Herein, Janus Ni/W bimetallic materials are proposed as an effective PGM-free bifunctional hydrogen electrocatalyst. By constructing the bimetallic materials, a synergistic effect is realized to enhance the reaction kinetics and improve the catalytic performance. In general, Ni can provide excellent Had sites, and W serves as OHad sites. Therefore, the synergistic effect of Ni and W can improve the kinetics of hydrogen evolution reaction and the hydroxide oxidation reaction. Ni/W@NF can obtain the hydrogen evolution reaction current density of 10 mA cm-2 with an overpotential of only 62.6 mV, and the exchange current density of hydroxide oxidation reaction can reach 1.83 mA cm-2. This work provides a new idea for the design of high-efficiency and low-cost PGM-free bifunctional hydrogen electrocatalysts." @default.
- W4281694810 created "2022-06-13" @default.
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- W4281694810 date "2022-11-01" @default.
- W4281694810 modified "2023-10-18" @default.
- W4281694810 title "Janus bimetallic materials as efficient electrocatalysts for hydrogen oxidation and evolution reactions" @default.
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- W4281694810 doi "https://doi.org/10.1016/j.jcis.2022.06.029" @default.
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