Nitrogen (N), Phosphorus (P)-Codoped Porous Carbon as a Metal-Free Electrocatalyst for N2 Reduction under Ambient Conditions

• DOI: 10.1021/acsami.8b20472
• Publication Date: 2019-03-12T11:52:23Z
• Authors: Pengfei Song; Li Kang; Hao Wang; Rong Guo; Rongmin Wang
• Keywords: Carbon fibers; Ammonia production

The electrocatalytic conversion of nitrogen gas at ambient conditions represents a novel approach for ammonia synthesis to the sustainable society. It is critical understand detailed pathways and mechanisms this promising process develop highly efficient catalyst. Herein, N, P co-doping carbon (NP-C-MOF-5) catalyst was prepared N2 reduction in acid electrolytes under temperatures pressures. Experimental results showed that there are two products including NH3 N2H4·H2O on NP-C-MOF-5 cathode -0.1 V versus RHE with yield 1.08 5.77 × 10-4 μg h-1 mgcat.-1, respectively. Moreover, an pathway investigated by electrochemical situ Fourier transform infrared technique. confirmed formation N2H y (1 ≤ 4) intermediates surfaces, suggesting associative reaction.