Improved CO2 conversion to methanol promoted by ionic liquid additives using a Cu/ZnO/Al2O3 heterogeneous catalyst

Zohaib Suhail; Christopher J. Koch; Alain Goeppert; G. K. Surya Prakash

doi:10.1039/D5CC01263E

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Improved CO₂ conversion to methanol promoted by ionic liquid additives using a Cu/ZnO/Al₂O₃ heterogeneous catalyst†

Zohaib Suhail,

^a Christopher J. Koch,

‡^a Alain Goeppert

^a and G. K. Surya Prakash

*^a

Author affiliations

* Corresponding authors

^a Loker Hydrocarbon Research Institute and Department of Chemistry, Chemical Engineering and Materals Science, University of Southern California, 837 Bloom Walk, Los Angeles, CA 90089-1661, USA
E-mail: gprakash@usc.edu

Abstract

An efficient amine-based CO₂ hydrogenation to methanol system using a Cu/ZnO/Al₂O₃ heterogeous catalyst was promoted by ionic liquid additives. Relative to a system without an ionic liquid, methanol yields greatly improved when an imidazolium-based ionic liquid [BMIm][OAc] was added. Among the amines tested, triethanolamine yielded the highest conversions.

This article is part of the themed collection: Chemistry at the Forefront of the Sustainable Energy Transition

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Article information

DOI: https://doi.org/10.1039/D5CC01263E
Article type: Communication
Submitted: 08 Mar 2025
Accepted: 24 Apr 2025
First published: 30 Apr 2025

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Chem. Commun., 2025,61, 7688-7691

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Improved CO₂ conversion to methanol promoted by ionic liquid additives using a Cu/ZnO/Al₂O₃ heterogeneous catalyst

Z. Suhail, C. J. Koch, A. Goeppert and G. K. S. Prakash, Chem. Commun., 2025, 61, 7688 DOI: 10.1039/D5CC01263E

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