Enhanced catalytic activity for CO esterification to dimethyl oxalate via increasing Lewis basic sites in Pd/MgAl-LDO catalyst

Zhi-Jian Yang; Si-Yan Peng; Hua Wang; Zi-Qun Zhang; Yu-Ping Xu; Jing Sun; Zhong-Ning Xu; Guo-Cong Guo

Catalysis Communications (Nov 2023)

Enhanced catalytic activity for CO esterification to dimethyl oxalate via increasing Lewis basic sites in Pd/MgAl-LDO catalyst

Zhi-Jian Yang,
Si-Yan Peng,
Hua Wang,
Zi-Qun Zhang,
Yu-Ping Xu,
Jing Sun,
Zhong-Ning Xu,
Guo-Cong Guo

Affiliations

Zhi-Jian Yang: College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, PR China; State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China
Si-Yan Peng: School of Chemistry and Environmental Science, Shangrao Normal University, Shangrao, Jiangxi 334001, PR China
Hua Wang: School of Chemistry and Chemical Engineering, Yulin University, Yulin, Shaanxi 719000, PR China
Zi-Qun Zhang: State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China
Yu-Ping Xu: State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China
Jing Sun: State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China
Zhong-Ning Xu: State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China; Corresponding author.
Guo-Cong Guo: State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China

Journal volume & issue: Vol. 184
p. 106781

Abstract

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CO esterification to dimethyl oxalate (DMO) has important industrial application value. However, the influence of support on catalytic performance has not been investigated sufficiently. In this work, MgAl-LDO supports (MgAl-LDO-400 and MgAl-LDO-600) were prepared at different calcination temperatures. The corresponding Pd-based catalysts was synthesized by impregnation method. The Pd/MgAl-LDO-400 catalyst exhibited higher CO conversion (39%) compared with the Pd/MgAl-LDO-600 (16%). It was found that Pd/MgAl-LDO-400 catalyst contains more Lewis basic sites, which is responsible for its higher activity. This work provides a general understanding of the support effect on catalytic performance induced by the Lewis basic sites.

Published in Catalysis Communications

ISSN: 1566-7367 (Print); 1873-3905 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Chemistry
Website: https://www.journals.elsevier.com/catalysis-communications

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