Three-Phase Electrolysis by Gold Nanoparticle on Hydrophobic Interface for Enhanced Electrochemical Nitrogen Reduction Reaction.

ABSTRACT: Electrochemical nitrogen reduction reaction (NRR) provides a facile and sustainable strategy to produce ammonia (NH₃) at ambient conditions. However, the low NH₃ yield and Faradaic efficiency (FE) are still the main challenges due to the competitive hydrogen evolution reaction (HER). Herein, a three-phase electrocatalyst through in situ fabrication of Au nanoparticles (NPs) located on hydrophobic carbon fiber paper (Au/o-CFP) is designed. The hydrophobic CFP surface facilitates efficient three-phase contact points (TPCPs) for N₂ (gas), electrolyte (liquid), and Au NPs (solid). Thus, concentrated N₂ molecules can contact the electrocatalyst surface directly, inhibiting the HER since the lowered proton concentration and overall enhancing NRR. The t

SUBMITTER: Zhang J 

PROVIDER: S-EPMC7675187 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature