Journal
SMALL
Volume 18, Issue 4, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.202104043
Keywords
electrocatalytic nitrogen reduction; MoSe; (2); nanoporous catalysts; single-atoms
Categories
Funding
- National Natural Science Foundation of China [51771072]
- Outstanding Youth Scientist Foundation of Hunan Province [2020JJ2006]
- Youth 1000 Talent Program of China
- Fundamental Research Funds for the Central Universities
- Hunan University State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body Independent Research Project [71860007]
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Electrically catalyzing nitrogen reduction reaction (NRR) by introducing single-atom Au onto bicontinous nanoporous MoSe2 as an efficient electrocatalyst enhances the selectivity towards NH3 production.
The electrocatalytic nitrogen reduction reaction (NRR) provides a promising strategy to convert the abundant but inert N-2 into NH3 using renewable energy. Herein, single-atom Au isolated onto bicontinous nanoporous MoSe2 (np-MoSe2) is designed as an electrocatalyst for achieving highly efficient NRR catalysis, which exhibits a high Faradaic efficiency (FE) of 37.82% and an NH3 production rate of 30.83 mu g h(-1) mg(-1) at -0.3 V versus a reversible hydrogen electrode (RHE) in 0.1 m Na2SO4 under ambient conditions. Experimental and theoretical investigations reveal that the introduction of single Au atoms onto np-MoSe2 optimizes the adsorption of NRR intermediates while suppressing the competing HER, thus providing an energetic-favorable process for enhancing the catalytic selectivity toward electrochemical N-2 reduction into NH3.
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