Abstract
Electrochemical nitrogen reduction is expected to replace the industrial Haber-Bosch process due to its environment-friendly and sustainable development route, while the main challenge is to develop active and selective N2 reduction reaction (NRR) electrocatalysts. Here, we prepare the self-supporting CoMoC nanoporous catalyst by electrochemical dealloying method. Due to the nanoporous structure and MoC compositions, the CoMoC catalyst exhibits high catalytic activity and outstanding selectivity to NRR. The intimate between Co and MoC favors in electron transport, resulting in promoting the activity of the whole nitrogen reduction reaction process. In 0.1 M PBS (PH = 7), the NH3 yield rate and faradaic efficiency (FE) at 0.1 V (vs. RHE) are 18.9 ug cm−2 h−1 and 8.9%, respectively. This work opens up new opportunities to develop self-supporting CoMoC nanoporous catalysts with good conductivity and activity for NRR.
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