Increasing the activity of the Cu/CuAl₂O₄/Al₂O₃ catalyst for the RWGS through preserving the Cu²⁺ ions

Abstract

Cu-Al spinel oxide is a highly active catalyst for CO₂ conversion to CO. However, it suffers from low surface area. By depositing a silica layer, we protected the catalyst surface and preserved the Cu²⁺ ions during the calcination process. These ions form well-dispersed Cu sites which participate in the reaction.