Advances in Oxygen Defect‐Mediated Photothermal Catalytic CO<sub>2</sub> Hydrogenation Reduction
Zhourong Xiao, Leshi Zhang, Xinyi Tan, Kaihang Sun, Junjie Li, Lun Pan, Ji‐Jun Zou, Guozhu Li, Desong Wang
Abstract
Abstract Photothermal (PT) catalysis significantly reduces the activation energy of reactions through a synergistic PT effect, resulting in milder reaction conditions and improved catalytic efficiency compared to traditional thermal catalytic methods, which is widely applied in CO 2 reduction. Engineering oxygen defects (O v ) can induce substantial alterations in the structure and function of PT catalysts, thereby greatly influencing their catalytic performance. Consequently, the design and development of PT catalysts with abundant O v is essential for advancing CO 2 reduction and utilization. This paper systematically reviews recent developments, advancements, and future prospects of oxygen defect‐mediated PT catalysts for CO 2 reduction. First, the fundamental concepts and principles of PT catalysis are summarized, followed by an overview of various types of oxides, including TiO 2 , ZrO 2 , In 2 O 3 , among others. Then the techniques and methods used for characterizing O v are outlined. Subsequently, the progress in the application of oxygen defect‐mediated catalysts in CO 2 reduction is detailed, specifically focusing on the synthesis of C1 and C 2+ chemicals. Finally, the findings are summarized and future directions are proposed for oxygen defect‐mediated PT catalytic CO 2 reduction. This review provides a timely and comprehensive overview of the mechanisms underlying O v in PT catalytic CO 2 reduction, emphasizing its significance in enhancing CO 2 resource utilization.