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Vanadium Diboride (VB2) for NO Electroreduction to NH3
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2023-05-30 , DOI: 10.1021/acs.inorgchem.3c00451
Guike Zhang 1 , Nana Zhang 1 , Yali Guo 1 , Xiaolin Zhao 2 , Ke Chu 1
Affiliation  

We report VB2 as an efficient electrocatalyst for NO-to-NH3 electroreduction (NORR), showing the highest NH3-Faradaic efficiency of 89.6% with the corresponding NH3 yield rate of 198.3 μmol h–1 cm–2 at −0.5 V vs RHE. Theoretical calculations demonstrate that B sites of VB2 act as the key active centers which can facilitate the NORR protonation energetics and inhibit the competitive hydrogen evolution, boosting both NORR activity and selectivity.

中文翻译:

二硼化钒 (VB2) 用于将 NO 电还原为 NH3

我们报告了 VB 2作为 NO-to-NH 3电还原 (NORR) 的高效电催化剂,显示出最高的 NH 3 -法拉第效率为 89.6%,相应的 NH 3产率为 198.3 μmol h –1 cm –2在 -0.5 V 与 RHE。理论计算表明,VB 2的B位作为关键活性中心,可以促进NORR质子化能量学并抑制竞争性析氢,从而提高NORR活性和选择性。
更新日期:2023-05-30
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