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- W3155871040 abstract "Topological materials with robust topological surface states appear to be well-suited as electrochemical catalysts. However, few studies have been published on the development of non-noble metal topological catalysts, most likely because the topological properties tend to be attributed to the s and p orbital electrons, while transition-metal catalysis mainly involves d orbital electrons. Herein, we proposed a topological semimetallic (TSM) compound, VAl3, with a surface state consisting mainly of d orbital electrons, as an electrocatalyst for the hydrogen evolution reaction (HER). Density functional theory (DFT) calculations showed that the surface state electrons enhanced the adsorption of H atoms. Moreover, the transfer of surface state electrons between the surface and adsorbed H atoms was optimized through nickel doping. We experimentally prepared single-crystals VAl3 and V0.75Ni0.25Al3 alloys. Electrochemical analysis showed that not only did V0.75Ni0.25Al3 outperform VAl3 but also it was among the best non-noble metal topological HER electrocatalysts currently available." @default.
- W3155871040 created "2021-04-26" @default.
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- W3155871040 date "2021-04-12" @default.
- W3155871040 modified "2023-10-14" @default.
- W3155871040 title "Development of a Ni-Doped VAl<sub>3</sub> Topological Semimetal with a Significantly Enhanced HER Catalytic Performance" @default.
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- W3155871040 doi "https://doi.org/10.1021/acs.jpclett.1c00238" @default.
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