Abstract
Developing highly efficient and affordable non-precious metal electrocatalysts toward nitrogen reduction reaction (NRR) is an important step for economical production of ammonia. Molybdenum [email protected] porous carbon ([email protected]) octahedron is synthesized through a metal-organic framework-assisted strategy characteristic by controlled carbonization and phosphidation. The purpose-synthesized [email protected] octahedron acts as a high-performance NRR electrocatalyst toward N2 electroreduction in 0.1 M HCl under ambient conditions. The [email protected] exhibits a high NH3 yield rate of 28.73 μg h−1 mg−1cat. and Faraday efficiency of 2.48% at −0.3 V versus RHE. The enhanced NRR performance of [email protected] electrocatalyst can be attributed to the synergistic effects of P-dopant, porous carbon and stable MoP nanoparticle. This study reveals the unique potential of non-precious metal electrocatalyst derived from metal-organic frameworks for NRR.
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