Atomically Dispersed Pt and NiO Clusters Synergistically Enhanced C–O Bond Hydrogenolysis  

作　　者：Junjuan Yang Sen Luan Minghua Dong Yuxuan Wu Xueqing Xing Xingwu Liu Junfeng Xiang Zhijuan Zhao Shaopeng Li Bin Zhang Huizhen Liu Buxing Han 

机构地区：[1]Beijing National Laboratory for Molecular Sciences,CAS Key Laboratory of Colloid and Interface and Thermodynamics,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190 [2]School of Chemical Sciences,University of Chinese Academy of Sciences,Beijing 100049 [3]Beijing Synchrotron Radiation Facility,Institute of High Energy Physics,Beijing 100049 [4]National Energy Center for Coal to Liquids,Synfuels China Co.,Ltd.,Huairou District,Beijing 101400 [5]Center for Physicochemical Analysis and Measurement,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190 [6]Physical Science Laboratory,Huairou National Comprehensive Science Center,University of Chinese Academy of Sciences,Beijing 100049

出　　处：《CCS Chemistry》2024年第3期709-718,共10页中国化学会会刊（英文）

基　　金：supported by the National Key Research and Development Program of China(grant no.2022YFA1504901);the National Natural Science Foundation of China(grant nos.22003069,22293012,22179132,22072157,22121002,and 22302209).

摘　　要：C–Obond activation is a highly efficient,fundamental strategy in the depolymerization and hydrodeoxygenation of chemicals with oxygen-containing functional groups such as oil,coal,and biomass.Developing efficient catalysts for C–Oactivation with ultralow-loading noble and non-noble metals is highly desirable for the improvement of metal atomic utilization.Herein,bimetallic catalysts with atomically dispersed Pt and NiO clusters on different supports were fabricated,and the prepared Pt^(δ+)-NiO/Nb_(2)O_(5)and Pt^(δ+)-NiO/TiO_(2)showed outstanding activity for the hydrogenolysis of benzyl phenyl ether with>99%yield of phenol and toluene due to the excellent cooperation of atomically dispersed Pt and NiO clusters.The synergy mechanism between Pt and Ni and their respective roles in the bimetallic catalyst for C–O hydrogenolysis were clearly clarified.These findings deepen our understanding of the synergy of the two active components and are expected to provide new design concepts for the development of multicomponents catalysts.

关 键 词：bimetallic catalysis synergistic effect C-O bond activation HYDROGENOLYSIS hydrogen spillover 

分 类 号：O64[理学—物理化学]