posted on 2023-01-03, 14:09authored byKai Chen, Peng Shen, Nana Zhang, Dongwei Ma, Ke Chu
Electrocatalytic reduction of NO to NH3 (NORR)
emerges
as a promising route for achieving harmful NO treatment and sustainable
NH3 generation. In this work, we first report that Mo2C is an active and selective NORR catalyst. The developed
Mo2C nanosheets deliver a high NH3 yield rate
of 122.7 μmol h–1 cm–2 with
an NH3 Faradaic efficiency of 86.3% at −0.4 V. Theoretical
computations unveil that the surface-terminated Mo atoms on Mo2C can effectively activate NO, promote protonation energetics,
and suppress proton adsorption, resulting in high NORR activity and
selectivity of Mo2C.