Pt-modulated Cu/SiO<sub>2</sub> catalysts for efficient hydrogenation of CO<sub>2</sub>-derived ethylene carbonate to methanol and ethylene glycol

Busha Assaba Fayisa; Yushan Xi; Youwei Yang; Yueqi Gao; Antai Li; Mei-Yan Wang; Jing Lv; Shouying Huang; Yue Wang; Xinbin Ma

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Pt-modulated Cu/SiO₂ catalysts for efficient hydrogenation of CO₂-derived ethylene carbonate to methanol and ethylene glycol

Catalysis, Kinetics and Reaction Engineering | Updated：2026-01-06

- Pt-modulated Cu/SiO₂ catalysts for efficient hydrogenation of CO₂-derived ethylene carbonate to methanol and ethylene glycol
- Chinese Journal of Chemical Engineering Vol. 41, Issue 1, Pages: 366-373(2022)
- Affiliations：
  
  1. Key Laboratory for Green Chemical Technology of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University,Tianjin,China,300072
  2. Zhejiang Institute of Tianjin University,Ningbo,China,315201
  3. Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University,Fuzhou,China,350207
- Author bio：
- Funds：
- DOI：
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- Published：2022
- Accepted：
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catalysts for efficient hydrogenation of CO
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catalysts for efficient hydrogenation of CO DOI：

摘要

Abstract

Copper-based catalysts were widely used in the heterogeneous selective hydrogenation of ethylene carbonate (EC)

a key step in the indirect conversion of CO

to methanol. However

a high H

/EC molar ratio in feed is required to achieve favorable activity and the methanol selectivity still needs to be improved. Herein

we fabricated a series of Pt-modulated Cu/SiO

catalysts and investigated their catalytic performance for hydrogenation of EC in a fixed bed reactor. By modulating the Pt amount

the optimal 0.2PtCu/SiO

catalyst exhibited the highest catalytic performance with ~99% EC conversion

over 98% selectivity to ethylene glycol and 95.8% selectivity to methanol at the H

/EC ratio as low as 60 in feed. In addition

0.2Pt-Cu/SiO

catalyst showed excellent stability for 150 h on stream over different H

/EC ratios of 180-40. It is demonstrated a proper amount of Pt could significantly lower the H

/EC molar ratio

promote the reducibility and dispersion of copper

and also enhance surface density of Cu

species. This could be

due to the strong interaction of Cu and Pt induced by formation of alloyed Pt single atoms on the Cu lattice. Meanwhile

a relatively higher amount of Pt would deteriorate the catalytic activity

which could be due to the surface coverage and aggregation of active species. These findings may enlighten some fundamental insights for further design of Cu-based catalysts for the hydrogenation of carbon–oxygen bonds.

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Related Institution

State Key Laboratory of Chemical Engineering and Low-Carbon Technology, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Haihe Laboratory of Sustainable Chemical Transformations, Tianjin Key Laboratory of Applied Catalysis Science and Engineering, School of Chemical Engineering & Technology, Tianjin University

Zhejiang Shaoxing Research Institute of Tianjin University

Hebei Provincial Key Lab of Green Chemical Technology and Efficient Energy Saving, Hebei University of Technology

2 Wison Engineering Ltd., 1399 Zhangheng Road

State Key Laboratory of Multiphase Complex System, Institute of Process Engineering, Chinese Academy of Sciences

⁰

Pt-modulated Cu/SiO2 catalysts for efficient hydrogenation of CO2-derived ethylene carbonate to methanol and ethylene glycol

DOI：

摘要

Abstract

关键词

Keywords

references

Pt-modulated Cu/SiO₂ catalysts for efficient hydrogenation of CO₂-derived ethylene carbonate to methanol and ethylene glycol