Selective Reduction of CO 2 to CO via the RWGS Reaction over ZnO-ZrO 2 -Ga 2 O 3 -Supported Catalysts Modified with Keggin-Type Heteropolyacid Precursors.
Saved in:
| Title: | Selective Reduction of CO 2 to CO via the RWGS Reaction over ZnO-ZrO 2 -Ga 2 O 3 -Supported Catalysts Modified with Keggin-Type Heteropolyacid Precursors. |
|---|---|
| Authors: | Lachquer, Farah1,2 (AUTHOR), Sánchez, Adrià2,3 (AUTHOR), Ramírez de la Piscina, Pilar2,3 (AUTHOR), Homs, Narcís2,3,4 (AUTHOR) narcishomsmarti@ub.edu, Toyir, Jamil1,4 (AUTHOR) jamil.toyir@usmba.ac.ma |
| Source: | Nanomaterials (2079-4991). Feb2026, Vol. 16 Issue 4, p266. 15p. |
| Subjects: | Carbon dioxide reduction, Water gas shift reactions, Catalysts, Nanostructured materials, Catalytic activity |
| Abstract: | Mo/ZZG and W/ZZG nanomaterials for the catalytic reduction of CO2 were successfully prepared from preformed ZnO-ZrO2-Ga2O3 (ZZG) and HPMo and HPMo heteropolyacids via simple incipient wetness impregnation. To establish the relationship between structural properties and catalytic performance, the prepared catalysts were deeply characterized using XRD, Raman spectroscopy, SEM coupled with EDX, BET, XPS, and H2-TPR techniques. The catalytic performance of the materials was evaluated in the RWGS reaction under atmospheric pressure, using a feed composition of CO2/H2/N2 = 1/3/1 across a temperature range of 250–600 °C. All materials were active in the reverse water gas shift reaction (RWGS) under these conditions, with the Mo/ZZG catalyst exhibiting the best performance, demonstrating excellent catalytic activity at low temperature with the lowest activation energy and the highest CO2 to CO conversion efficiency. [ABSTRACT FROM AUTHOR] |
| Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
|
Full text is not displayed to guests.
Login for full access.
|
|
| Abstract: | Mo/ZZG and W/ZZG nanomaterials for the catalytic reduction of CO2 were successfully prepared from preformed ZnO-ZrO2-Ga2O3 (ZZG) and HPMo and HPMo heteropolyacids via simple incipient wetness impregnation. To establish the relationship between structural properties and catalytic performance, the prepared catalysts were deeply characterized using XRD, Raman spectroscopy, SEM coupled with EDX, BET, XPS, and H2-TPR techniques. The catalytic performance of the materials was evaluated in the RWGS reaction under atmospheric pressure, using a feed composition of CO2/H2/N2 = 1/3/1 across a temperature range of 250–600 °C. All materials were active in the reverse water gas shift reaction (RWGS) under these conditions, with the Mo/ZZG catalyst exhibiting the best performance, demonstrating excellent catalytic activity at low temperature with the lowest activation energy and the highest CO2 to CO conversion efficiency. [ABSTRACT FROM AUTHOR] |
|---|---|
| ISSN: | 20794991 |
| DOI: | 10.3390/nano16040266 |
