V2O4 Nanowires/rGO Hybrid for Electrocatalytic Nitrogen Fixation

摘要

NH3 plays an important role in the agroindustry, but its existing preparation processes generate a lot of pollution, which is not conducive to sustainable development. Electrochemical nitrogen reduction is a clean process for preparing ammonia, it relies on a catalyst with excellent performance. Here, we studied a vanadium tetroxide nanowire electrocatalyst supported on reduced graphene oxide, which has excellent performance in the production of NH3. In the 0.1 mol L-1 Na2SO4 electrolyte, the highest NH3 yield of catalyst achieved 24.75 mu g h(-1)center dot mg(cat.)(-1) at - 0.3 V (V vs. RHE) potential, and the Faraday efficiency was up to 79% at - 0.2 V (V vs. RHE). This study provides a basis for subsequent improvement of catalyst performance.

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