Interstitial boron-triggered electron-deficient isolated Pd–In active-sites in ordered intermetallic metallene for enhanced electrosynthesis of urea

Abstract

A B-doped Pd–In intermetallic bimetallene was synthesized for urea electrosynthesis from CO₂ and NO₃⁻. The ordered arrangement of Pd and In sites in the intermetallic structure can meet the distinct requirements for NO₃⁻/CO₂ adsorption and activation. Moreover, the interstitial doping of B atoms can regulate the electronic structure of Pd and In active sites and promote the generation of key intermediates and C–N coupling reactions.