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

被引：7
|
作者：
Liu, Xiao-Chen [1 ]
Yao, Wei-Kun [1 ]
Su, Bi-Ying [1 ]
Hong, Yu-Hao [1 ]
Wang, Tao [1 ]
Zhou, Zhi-You [1 ]
Sun, Shi-Gang [1 ]
机构：
[1] Xiamen Univ, Coll Chem & Chem Engn, State Key Lab Phys Chem Solid Surfaces, Tan Kah Kee Innovat Lab, Xiamen 361005, Peoples R China
来源：
ELECTROCHEMISTRY COMMUNICATIONS | 2023年 / 151卷
关键词：
Electrocatalytic propylene conversion; Electrocatalytic-thermocatalytic coupling; TS-1; zeolite; H; 2; O; electrosynthesis; Propylene glycol synthesis; HYDROGEN-PEROXIDE; EPOXIDATION; SELECTIVITY; OXIDATION; PROPENE; OXYGEN; OXIDE; OLEFINS;
D O I：
10.1016/j.elecom.2023.107510
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
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 ther-mocatalytic 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.
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收藏
页数：6
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