Electronic structure modulation of Pd (n = 2-5) nanoclusters in the hydrogenation of cinnamaldehyde
Jie Tang1,2, Tingting Ge1,2, Wenxuan Wang1,3
1Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
Abstract:
Studying the modulation of nanoclusters at an atomic scale is essential to comprehend the connection between properties and catalytic performance. Herein, we synthesized and characterized Pd (n = 2-5) nanoclusters coordinated with di-1-adamantylphosphine. Pd5 nanoclusters showed the best catalytic performance (conversion = 99.3%, selectivity = 95.3%) for the hydrogenation of cinnamaldehyde to hydrocinnamaldehyde, with XPS identifying Pd as the key active component. This work aimed to explore the relationship among the number of Pd atoms, their electronic structure and catalytic activity.
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