Details
| Original language | English |
|---|---|
| Article number | e202300662 |
| Journal | CHEMCATCHEM |
| Volume | 15 |
| Issue number | 17 |
| Early online date | 29 Jun 2023 |
| Publication status | Published - 11 Sept 2023 |
Abstract
Methanol formation from CO2 hydrogenation attracts great attention in view of utilization of carbon resources. However, CO2 transformation to methanol is challenging because of the thermodynamic equilibrium restriction and water-caused catalyst deactivation. It is desired, therefore, to develop highly active, selective and stable catalysts for CO2 hydrogenation to methanol. Herein, we propose a novel tandem catalyst composed of Cu−ZnO−Al2O3−ZrO2 (CZAZ) and Cu−MOR for highly selective conversion of CO2 to methanol. During CO2 hydrogenation by the CZAZ catalyst, the by-product methane is continuously transformed to methanol through reaction with water via the Cu−MOR catalyst, thus enhancing CO2 conversion and methanol selectivity. Under mild reaction conditions (200 °C and 3.0 MPa), high CO2 conversion (40.7 %) and methanol selectivity (97.6 %) are achieved, outperforming state-of-the-art CO2 hydrogenation catalysts. Further, water-caused deactivation of the catalyst through aggregation and densification is suppressed owing to water consumption via methane oxidation to methanol, validating a high CZAZ/Cu−MOR tandem catalyst stability.
Keywords
- CO hydrogenation to methanol, Cu−MOR, Methane oxidation to methanol, Reaction coupling, Tandem catalyst
ASJC Scopus subject areas
- Chemical Engineering(all)
- Catalysis
- Chemistry(all)
- Physical and Theoretical Chemistry
- Chemistry(all)
- Organic Chemistry
- Chemistry(all)
- Inorganic Chemistry
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: CHEMCATCHEM, Vol. 15, No. 17, e202300662, 11.09.2023.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Highly Selective Conversion of Carbon Dioxide to Methanol through a Cu−ZnO−Al2O3−ZrO2/Cu−MOR Tandem Catalyst
AU - Wang, Yuxin
AU - Wei, Yayu
AU - Li, Yanhong
AU - Chen, Xiaofang
AU - Caro, Jürgen
AU - Huang, Aisheng
N1 - Funding Information: . Financial supports by the National Key Research and Development Program of China (2022YFB3805500), the National Natural Science Foundation of China (22278144) are acknowledged
PY - 2023/9/11
Y1 - 2023/9/11
N2 - Methanol formation from CO2 hydrogenation attracts great attention in view of utilization of carbon resources. However, CO2 transformation to methanol is challenging because of the thermodynamic equilibrium restriction and water-caused catalyst deactivation. It is desired, therefore, to develop highly active, selective and stable catalysts for CO2 hydrogenation to methanol. Herein, we propose a novel tandem catalyst composed of Cu−ZnO−Al2O3−ZrO2 (CZAZ) and Cu−MOR for highly selective conversion of CO2 to methanol. During CO2 hydrogenation by the CZAZ catalyst, the by-product methane is continuously transformed to methanol through reaction with water via the Cu−MOR catalyst, thus enhancing CO2 conversion and methanol selectivity. Under mild reaction conditions (200 °C and 3.0 MPa), high CO2 conversion (40.7 %) and methanol selectivity (97.6 %) are achieved, outperforming state-of-the-art CO2 hydrogenation catalysts. Further, water-caused deactivation of the catalyst through aggregation and densification is suppressed owing to water consumption via methane oxidation to methanol, validating a high CZAZ/Cu−MOR tandem catalyst stability.
AB - Methanol formation from CO2 hydrogenation attracts great attention in view of utilization of carbon resources. However, CO2 transformation to methanol is challenging because of the thermodynamic equilibrium restriction and water-caused catalyst deactivation. It is desired, therefore, to develop highly active, selective and stable catalysts for CO2 hydrogenation to methanol. Herein, we propose a novel tandem catalyst composed of Cu−ZnO−Al2O3−ZrO2 (CZAZ) and Cu−MOR for highly selective conversion of CO2 to methanol. During CO2 hydrogenation by the CZAZ catalyst, the by-product methane is continuously transformed to methanol through reaction with water via the Cu−MOR catalyst, thus enhancing CO2 conversion and methanol selectivity. Under mild reaction conditions (200 °C and 3.0 MPa), high CO2 conversion (40.7 %) and methanol selectivity (97.6 %) are achieved, outperforming state-of-the-art CO2 hydrogenation catalysts. Further, water-caused deactivation of the catalyst through aggregation and densification is suppressed owing to water consumption via methane oxidation to methanol, validating a high CZAZ/Cu−MOR tandem catalyst stability.
KW - CO hydrogenation to methanol
KW - Cu−MOR
KW - Methane oxidation to methanol
KW - Reaction coupling
KW - Tandem catalyst
UR - http://www.scopus.com/inward/record.url?scp=85165085530&partnerID=8YFLogxK
U2 - 10.1002/cctc.202300662
DO - 10.1002/cctc.202300662
M3 - Article
AN - SCOPUS:85165085530
VL - 15
JO - CHEMCATCHEM
JF - CHEMCATCHEM
SN - 1867-3880
IS - 17
M1 - e202300662
ER -