论文题目：Dual-confined Cu nanoclusters/InOx nanolayers on AlOOH support: Engineering interfacial structure for enhanced photothermal catalytic CO2 hydrogenation

论文摘要：In heterogeneous catalytic reactions, leveraging confinement effects to construct active sites on catalyst surfaces represents an efficient strategy for attaining desired catalytic performances. Reported metal-oxide and oxide-oxide confinement systems have indeed exhibited remarkable promoting effects. However, fabricating confined systems on inert support materials remains a formidable challenge. Herein, this work presents a dual-confinement strategy for the preparation of a ternary Cu/In-Al catalyst by sequentially confining InOx nanolayers and Cu nanoclusters on AlOOH supports. In the dual-confined Cu/In-Al system, the InOx nanolayers can effectively stabilize Cu nanoclusters, establishing an active metal/oxide interface with strong interaction. This significantly reduces the antibonding orbital occupancy between Cu 3d and C 2p states, promotes the adsorption/activation of reactants and the efficiency of photogenerated charge carrier separation. Consequently, the optimized Cu/In-Al catalyst demonstrates outstanding performance in photothermal catalytic CO2 hydrogenation, delivering a remarkable CO production rate of 1003.4 μmol·g−1·h−1 with a selectivity exceeding 98.7 %. This study underscores the pivotal role of the interface confinement effect in engineering active sites on inert supports, thereby pioneering a novel paradigm for the rational design of highly efficient atomically dispersed photothermal catalysts.

论文链接：https://www.sciencedirect.com/science/article/pii/S1385894725125205