Details

Autor(en) / Beteiligte

• Xu, Nuo
• Ren, Jie
• Lou, Hao
• Li, Yangfeng
• Zhou, Weili
• Ullah, Inam
• Ahmed, Syed Musab
• Abbasi, Zeeshan
• Wang, Zhandong

Titel

Structure and Activity Comparison of Cu/Ce y Zr1–y O x Series Catalysts in the Reverse Water–Gas Shift Reaction

Ist Teil von

• Energy & fuels, 2024-04, Vol.38 (8), p.7158-7166

Ort / Verlag

American Chemical Society

Erscheinungsjahr

2024

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Cu-based catalysts with abundant oxygen vacancies have attracted great attention for the reverse water–gas shift (RWGS) reaction because of their enhanced activity for CO2 adsorption and activation. However, the effect of the oxygen vacancy origin on the reaction and mechanism of RWGS are still unclear. Herein, various Cu/Ce y Zr1–y O x catalysts with different Ce/Zr ratios were designed and used for RWGS, and the results showed that the Cu/Ce0.9Zr0.1O x catalyst exhibited the highest CO2 conversion (57.5%) and 100% CO selectivity. The characterization showed that Cu/Ce0.9Zr0.1O x possessed highly dispersed Cu, abundant oxygen vacancies, and optimized basic sites, and the synergistic effect of the three factors led to the highest activity and stability. Both formate and carbonate pathways have been confirmed for Cu/Ce y Zr1–y O x , while the dominant reaction path is different between Cu/ZrO2 and Cu/CeO2.