Interface-Engineered Co₃O₄ Nano-Islands on Cu Substrate for High-Efficiency Electrocatalytic Nitrate-to-Ammonia Conversion

Abstract

The core@shell Cu@Co catalyst with interfacial-engineered nano-islands on Cu substrate were constructed, featuring accelerated electron-transfer property and optimized nitrate trapping through the synergetic interfacial effect, achieving a remarkable NH3 yield of 57.4±2.9 mg·h-1·mgcat-1 and high Faraday efficiency of 98.4 ± 1.2%, surpassing most reported non-precious metal catalysts.