Cu cluster@UiO-66团簇负载型催化剂促进光催化CO_(2)加氢反应  

Cu Cluster@UiO-66 Cluster-loaded Catalysts for Photocatalytic CO_(2)Hydrogenation Reaction

作　　者：王秀林[1] 岐少鹏 周昆 邓希 姚辉超[1] 戴若云 张雨晴 伍思达 聂锁府 WANG Xiulin;QI Shaopeng;ZHOU Kun;DENG Xi;YAO Huichao;DAI Ruoyun;ZHANG Yuqing;WU Sida;NIE Suofu(Technology R&D Center,CNOOC Gas&Power Group,Beijing 100028,China;University of Science and Technology of China,Hefei 230026,China)

机构地区：[1]中海石油气电集团有限责任公司技术研发中心,北京100028 [2]中国科学技术大学,安徽合肥230026

出　　处：《分子催化(中英文)》2025年第2期111-119,I0001,共10页Journal of Molecular Catalysis(China)

基　　金：中国海洋石油集团有限公司“十四五”重大科技项目CCUS专项课题三子课题五“二氧化碳光电催化技术研究”(KJGG-2022-12-CCUS-030500)。

摘　　要：针对高活性Cu基团簇(Cu cluster)催化剂的稳定性问题,利用MOFs材料独特的结构限域作用,将Cu团簇锚定在UiO-66中,构建了Cu cluster@UiO-66复合材料,改善了催化剂的稳定性和催化活性.在该复合结构中,UiO-66不仅可作为吸光单元捕获太阳光形成光生载流子,而且UiO-66的多孔结构可以有效稳定Cu团簇,保证其微观尺度上的高度分散和结构稳定.研究发现,在光催化反应过程中,UiO-66的光生电子可快速转移至Cu团簇,进而以Cu团簇作为催化活性位点驱动CO_(2)还原反应.得益于复合材料中高效的电荷转移和稳定的团簇活性位点结构,光催化CO_(2)加氢反应活性明显增强.本研究为合成MOFs负载型团簇材料提供了新的思路.Aiming at the stability of highly active Cu-based cluster catalysts,we constructed the Cu cluster@UiO-66 composite by using the unique structural confinement effect of MOFs to anchor the Cu in UiO-66 can not only act as a light-absorbing unit to capture sunlight to form photogenerated carriers,but also enhance the porous structural stability on the microscopic scale.It is found that during the photocatalytic reaction,the photogenerated electrons of UiO-66 can be rapidly transferred to the Cu cluster,which is used as the catalytically active site to drive the CO_(2)reduction reaction.Benefiting from the efficient charge transfer and stable cluster active site structure in the composite,the photocatalytic CO_(2)hydrogenation reaction activity is significantly enhanced.The related research results provide a new idea for the synthesis of MOFs-supported cluster materials.

关 键 词：复合结构 UiO-66 铜纳米簇 光催化CO_(2)还原 

分 类 号：O643.36[理学—物理化学]