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Updated: Feb 14, 2026

Hydrogen Production and Utilization in a Membrane Reactor
Published on: March 10, 2023
Controllable Hydrogen Spillover for Selective Hydrogenation-Acetalization of DEO to 1,1-Diethoxyethane over
Yimeng Zhou1, Tingting Chen1, Jie Ding1
1School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, P. R. China.
Abstract:
Controlled hydrogen spillover is of paramount importance for the precise regulation of target products in the hydrogenation selectivity. In this study, Pd@1Al2O3/Ag catalyst was designed and prepared for the hydrogenation-acetalization of diethyl oxalate (DEO) to 1,1-diethoxyethane (DEE) with excellent DEE selectivity (83.0%) and high DEO conversion (99.9%). Pd species are mainly responsible for the generation of H* species from H2 adsorption and dissociation, and Al2O3 acted as a delivery channel for H* species to migrate and mass transfer from H* to Ag nanoparticles loaded on the catalyst surface, which facilitated the progression of subsequent DEO hydrogenation-acetalization reactions. This study provides a promising strategy for high hydrogenation-acetalization efficiency via controllable hydrogen spillover.
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