Dual Pd-Acid Sites Confined in a Hierarchical Core-Shell Structure for Hydrogenation of Nitrobenzene

Yi-Tian Wang; Si-Ming Wu; Guo-Qiang Luo; Shi-Tian Xiao; Fu-Fei Pu; Li-Ying Wang; Gang-Gang Chang; Ge Tian; Xiao-Yu Yang

doi:10.1002/asia.202300689

Dual Pd-Acid Sites Confined in a Hierarchical Core-Shell Structure for Hydrogenation of Nitrobenzene

Chem Asian J. 2023 Nov 2;18(21):e202300689. doi: 10.1002/asia.202300689. Epub 2023 Sep 20.

Authors

Yi-Tian Wang¹, Si-Ming Wu¹, Guo-Qiang Luo¹, Shi-Tian Xiao¹, Fu-Fei Pu¹, Li-Ying Wang², Gang-Gang Chang¹, Ge Tian¹, Xiao-Yu Yang¹

Affiliations

¹ State Key Laboratory of Advanced Technology for Materials Synthesis and Processing & International School of Materials Science and Engineering & School of Materials Science and Engineering & Shenzhen research institute of Wuhan University of Technology, School of Chemistry Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan, 430071, P. R. China.
² Department State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, P. R. China.

PMID: 37704571
DOI: 10.1002/asia.202300689

Abstract

A core-shell structured Pd@TS-1@meso-SiO₂ catalyst with confined Pd nanometals has been fabricated by one-pot synthesis, impregnation method and sol-gel method. With the promotion of acid sites and protection of mesoporous silica shell, Pd@TS-1@meso-SiO₂ shows higher activity than commercial comparison and higher stability than sample without mesoporous silica shell in the hydrogenation of nitrobenzene. The schematic illustration of the synergy effect is also proposed.

Keywords: Pd nanometals; TS-1; core-shell structure; hydrogenation; zeolites.

Abstract

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