Efficient conversion of propylene to propylene glycol by coupling H2O2 electrosynthesis and TS-1 thermocatalysis

Xiao-Chen Liu; Wei-Kun Yao; Bi-Ying Su; Yu-Hao Hong; Tao Wang; Zhi-You Zhou; Shi-Gang Sun

Electrochemistry Communications (Jun 2023)

Efficient conversion of propylene to propylene glycol by coupling H2O2 electrosynthesis and TS-1 thermocatalysis

Xiao-Chen Liu,
Wei-Kun Yao,
Bi-Ying Su,
Yu-Hao Hong,
Tao Wang,
Zhi-You Zhou,
Shi-Gang Sun

Affiliations

Xiao-Chen Liu: State Key Laboratory of Physical Chemistry of Solid Surfaces, Tan Kah Kee Innovation Laboratory, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
Wei-Kun Yao: State Key Laboratory of Physical Chemistry of Solid Surfaces, Tan Kah Kee Innovation Laboratory, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
Bi-Ying Su: State Key Laboratory of Physical Chemistry of Solid Surfaces, Tan Kah Kee Innovation Laboratory, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
Yu-Hao Hong: Corresponding authors.; State Key Laboratory of Physical Chemistry of Solid Surfaces, Tan Kah Kee Innovation Laboratory, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
Tao Wang: Corresponding authors.; State Key Laboratory of Physical Chemistry of Solid Surfaces, Tan Kah Kee Innovation Laboratory, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
Zhi-You Zhou: Corresponding authors.; State Key Laboratory of Physical Chemistry of Solid Surfaces, Tan Kah Kee Innovation Laboratory, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
Shi-Gang Sun: State Key Laboratory of Physical Chemistry of Solid Surfaces, Tan Kah Kee Innovation Laboratory, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China

Journal volume & issue: Vol. 151
p. 107510

Abstract

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It is highly desirable to develop an efficient and sustainable strategy for converting propylene into high value-added products under mild conditions. In this work, the tandem oxidation of propylene to propylene glycol was achieved by coupling electrosynthesis of H2O2 by 2e- ORR on an oxygen-doped carbon catalyst with thermocatalytic oxidation of propylene by H2O2 on titanium silicalite-1 (TS-1) in a flow cell. For a composite catalyst with the optimal composition which balances electron transfer and H2O2 mass transport, the selectivity towards propylene glycol and the utilization efficiency of H2O2 can reach 79.7 % and 47.6 %, respectively. The yield of propylene glycol is 4.28 mmol gcat-1h−1. This study provides a promising approach to electrochemical propylene conversion in the future.

Published in Electrochemistry Communications

ISSN: 1388-2481 (Print); 1873-1902 (Online)
Publisher: Elsevier
Country of publisher: United States
LCC subjects: Technology: Chemical technology: Industrial electrochemistry; Science: Chemistry
Website: https://www.journals.elsevier.com/electrochemistry-communications

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