Au Cluster-Nanoparticle Dual Coupling for Photocatalytic CO 2 Conversion

• Published in: Inorganic chemistry 2024-10, Vol.63 (41), p.19375-19381
• Main Authors: Fang, Jiaojiao, Li, Jiaqi, Chen, Yukai, Cheng, Jiale, Zhu, Chengyang, Mao, Junjie
• Format: Article
• Language: English
• ISSN: 0020-1669; 1520-510X
• DOI: 10.1021/acs.inorgchem.4c03287

CO -selective photoreduction to value-added products is ideal, but its practical application suffers from weak photogenerated carrier separation and insufficient multielectron transport. Herein, we constructed the tricomponent AuNPs@SnO -AuNCs hybrid by decorating Au nanoclusters (AuNCs) on the Au nanoparticle (AuNPs)@SnO core-shell structure. AuNC-NP dual coupling endowed AuNPs@SnO -AuNCs with an excellent CO yield of 64.8 μmol g h during CO photoreduction, which was higher than the role of separate application of AuNCs (25.3 μmol g h ) and AuNPs (16.0 μmol g h ). It was mainly attributed that the coaction of AuNPs and AuNCs not only enhanced the visible light absorption capacity but also improved the photogenerated carrier separation/migration. As a result, the electron-rich AuNCs induced from plasmonic AuNPs and photoexcited SnO promoted the photocatalytic CO -to-CO performance. This work provides a new perspective to design multicomponent photocatalysts for highly efficient CO conversion.