Structure–Performance Relationships in Metal–Organic Framework Mg2(olz) Catalysts for CO2 Adsorption and Hydrogenation to Methanol
4 affiliations
- 1Center for Energy and Environmental Sciences Paul Scherrer Institute PSI Villigen Switzerland
- 2Department of Chemistry and Applied Biosciences ETH Zürich Zurich Switzerland
- 3ESRF, The European Synchrotron Grenoble France
- 4Center for Life Sciences Paul Scherrer Institute PSI Villigen Switzerland
Abstract
We investigated a Cu–Zn‐modified Mg2(olz) catalyst for carbon dioxide (CO2) hydrogenation to methanol under low CO2 partial pressures, relevant to dilute CO2 streams in industrial gas treatment and carbon capture. The catalyst was prepared via wet impregnation of presynthesized Cu–Zn species into the metal‐organic framework (MOF). Batch tests under mild temperatures and low CO2 concentration showed that the MOF‐based system achieved higher methanol yields than a commercial catalyst at 150 °C. Step‐response experiments in a plug‐flow reactor revealed that the MOF retained a significant amount of CO2 under high‐pressure and dynamic conditions. In situ diffuse reflectance infrared Fourier transform spectroscopy identified methanol‐related surface intermediates, while ex situ postreaction 1H nuclear magnetic resonance spectroscopy supported the formation and retention of methanol and oxygenated species in the MOF‐based catalyst. X‐ray absorption spectroscopy showed partial reduction of oxygenated Cu species during reaction, while in situ X‐ray diffraction demonstrated structural stability of the Mg2(olz) MOF framework. These results indicate that Mg2(olz)‐based materials combine CO2 adsorption capacity with catalytic functionality. Adsorption and catalytic functions coexist rather than being directly coupled. The material exhibits methanol productivity at low temperature in the presence of a solvent phase and remains structurally stable under the investigated catalytic conditions.
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BibTeX
@article{liutkova2026structureperformance,
title = {{Structure–Performance Relationships in Metal–Organic Framework Mg2(olz) Catalysts for CO2 Adsorption and Hydrogenation to Methanol}},
author = {Anna Liutkova and Fabio André Peixoto Esteves and Anastasia Molokova and Marianela López Romero and Davide Salusso and Andrea Testino and Emiliya Poghosyan and Marco Ranocchiari},
journal = {Chemsuschem},
year = {2026},
month = nov,
doi = {10.1002/cssc.71202},
url = {https://doi.org/10.1002/cssc.71202},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Structure–Performance Relationships in Metal–Organic Framework Mg2(olz) Catalysts for CO2 Adsorption and Hydrogenation to Methanol
AU - Anna Liutkova
AU - Fabio André Peixoto Esteves
AU - Anastasia Molokova
AU - Marianela López Romero
AU - Davide Salusso
AU - Andrea Testino
AU - Emiliya Poghosyan
AU - Marco Ranocchiari
PY - 2026
DA - 2026/11/05
JO - Chemsuschem
DO - 10.1002/cssc.71202
UR - https://doi.org/10.1002/cssc.71202
AB - We investigated a Cu–Zn‐modified Mg2(olz) catalyst for carbon dioxide (CO2) hydrogenation to methanol under low CO2 partial pressures, relevant to dilute CO2 streams in industrial gas treatment and carbon capture. The catalyst was prepared via wet impregnation of presynthesized Cu–Zn species into the metal‐organic framework (MOF). Batch tests under mild temperatures and low CO2 concentration showed that the MOF‐based system achieved higher methanol yields than a commercial catalyst at 150 °C. Step‐response experiments in a plug‐flow reactor revealed that the MOF retained a significant amount of CO2 under high‐pressure and dynamic conditions. In situ diffuse reflectance infrared Fourier transform spectroscopy identified methanol‐related surface intermediates, while ex situ postreaction 1H nuclear magnetic resonance spectroscopy supported the formation and retention of methanol and oxygenated species in the MOF‐based catalyst. X‐ray absorption spectroscopy showed partial reduction of oxygenated Cu species during reaction, while in situ X‐ray diffraction demonstrated structural stability of the Mg2(olz) MOF framework. These results indicate that Mg2(olz)‐based materials combine CO2 adsorption capacity with catalytic functionality. Adsorption and catalytic functions coexist rather than being directly coupled. The material exhibits methanol productivity at low temperature in the presence of a solvent phase and remains structurally stable under the investigated catalytic conditions.
SN - 1864-5631
SN - 1864-564X
ER -