C.Y. Li, Y. Wang, X. Wang, T. Azam and Z.-S. Wu *

Chem, 2024, Accepted.

Electrochemical refinery, by substituting oxygen evolution reaction with more thermodynamically favorable anode oxidation reactions simultaneously coupled with cathode reduction reactions, is an emerging cost-effective strategy for maximal utilization of electrical energy alongside the production of high-value chemicals for economic benefits and high efficiency. However, a summary and coherent perspective on the advances in electrochemical refinery has been long overdue. This review systematically sums up the recent advances and innovative strategies in electrochemical refinery aimed to enhance economic benefits. Specifically, sacrificial-agent oxidation reaction coupling reduction reaction can efficiently achieve pollutant degradation and improve energy efficiency, while electrochemical synthesis reaction coupling reduction reactions can synchronously generate high value-added products at both sides. Further, anode catalyst designs, specific reaction mechanisms, and cell configurations are discussed in detail. Finally, we showcase the new insights on the current challenges and future perspectives on the development of the coupled systems and hope to inspire further innovative work in this rapidly growing field.