The electrochemical synthesis of ammonia under ambient condition has attracted significant attention as an alternative route for green ammonia production. However, competing hydrogen evolution reaction (HER) hinders selective ammonia synthesis through electrochemical nitrogen reduction reaction (NRR). For the broad adoption of such technology in industries, it is essential to overcome poor selectivity of NRR by developing effective electrocatalysts and controlling the reactant at the interface between electrode and electrolyte.[1,2] In this study, we prepared cobalt-molybdenum carbide-carbon nanofiber via electrospinning method as a selective NRR catalyst. Furthermore, we reveal the relationship between water adsorption ability and NRR selectivity on biphasic catalyst using isotopic-labeling and in-situ analyses.

Reference

[1] Journal of Electroanalytical Chemistry 2021, 896, 115157.

[2] Journal of Energy Chemistry 2022, 67, 474–482.