Interfacial electronic tuning of Pt–Co3O4 enables highly efficient electrocatalytic hydrogenation of phenol

Abstract

A Pt–Co₃O₄ electrocatalyst, optimized through metal–support interactions, efficiently catalyzes the transformation of phenol to ketone–alcohol (KA) oil, achieving a 71.4% faradaic efficiency, 93.2% product yield, and 40 hours of stability. In situ Raman spectroscopic analysis confirms that the promoted adsorption and activation of the aromatic ring over Pt–Co₃O₄ is responsible for the superior ECH activities.