A catalytic sites contiguity study on atomically‐dispersed ZnO‐Cu/SiO2 catalysts to improve methanol formation from CO2 hydrogenation DOI Creative Commons
Jingye Chen, Mohsen Shakouri, Mehdi Alizadeh

et al.

The Canadian Journal of Chemical Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: March 25, 2025

Abstract Cu‐ZnO‐based catalysts are commonly used in research on catalytic carbon dioxide (CO 2 ) hydrogenation for methanol (MeOH) synthesis. This work studied the sites contiguity, example, surface orientation or arrangement of CO and H activating their capability to facilitate interaction between adsorbed species, its effects performance MeOH formation. Cu/SiO precursor was prepared by impregnating copper nitrate solution a commercial SiO gel. Controlling exposure time cycle numbers atomic layer deposition (ALD), atomic‐level dispersion ZnO (ADZn) formed uncalcined calcined precursors as well Characterizations allowed identification Cu + –Cu 0 ADZn 2+ /Cu contiguity reduced catalyst surface. Catalytic tests showed that ALD ZnO‐Cu/SiO ‐C facilitated space–time yield 33.1 g/(kg catal ∙ h) at 240°C, three times Cu‐only counterpart. The property–performance correlation indicated two types ZnO–Cu were responsible formation from with favouring more various also influence hydrogenation.

Language: Английский

Highly selective CO formation via CO2 hydrogenation over novel ceria-based high-entropy oxides (HEOs) DOI Creative Commons
María Cortazar, Marta Lafuente, Andrea Navarro‐Puyuelo

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160706 - 160706

Published: Feb. 1, 2025

Language: Английский

Citations

0
A catalytic sites contiguity study on atomically‐dispersed ZnO‐Cu/SiO2 catalysts to improve methanol formation from CO2 hydrogenation DOI Creative Commons
Jingye Chen, Mohsen Shakouri, Mehdi Alizadeh

et al.

The Canadian Journal of Chemical Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: March 25, 2025

Abstract Cu‐ZnO‐based catalysts are commonly used in research on catalytic carbon dioxide (CO 2 ) hydrogenation for methanol (MeOH) synthesis. This work studied the sites contiguity, example, surface orientation or arrangement of CO and H activating their capability to facilitate interaction between adsorbed species, its effects performance MeOH formation. Cu/SiO precursor was prepared by impregnating copper nitrate solution a commercial SiO gel. Controlling exposure time cycle numbers atomic layer deposition (ALD), atomic‐level dispersion ZnO (ADZn) formed uncalcined calcined precursors as well Characterizations allowed identification Cu + –Cu 0 ADZn 2+ /Cu contiguity reduced catalyst surface. Catalytic tests showed that ALD ZnO‐Cu/SiO ‐C facilitated space–time yield 33.1 g/(kg catal ∙ h) at 240°C, three times Cu‐only counterpart. The property–performance correlation indicated two types ZnO–Cu were responsible formation from with favouring more various also influence hydrogenation.

Language: Английский

Citations

0