Flame Synthesis of Cu/ZnO-CeO₂ Catalysts: Synergistic Metal-Support Interactions Promote CH₃OH Selectivity in CO₂ Hydrogenation.

ABSTRACT: The hydrogenation of CO₂ to CH₃OH is an important reaction for future renewable energy scenarios. Herein, we compare Cu/ZnO, Cu/CeO₂, and Cu/ZnO-CeO₂ catalysts prepared by flame spray pyrolysis. The Cu loading and support composition were varied to understand the role of Cu-ZnO and Cu-CeO₂ interactions. CeO₂ addition improves Cu dispersion with respect to ZnO, owing to stronger Cu-CeO₂ interactions. The ternary Cu/ZnO-CeO₂ catalysts displayed a substantially higher CH₃OH selectivity than binary Cu/CeO₂ and Cu/ZnO catalysts. The high CH₃OH selectivity in comparison with a commercial Cu-ZnO catalyst is also confirmed for Cu/ZnO-CeO₂ catalyst prepared with high C

SUBMITTER: Zhu J 

PROVIDER: S-EPMC8057230 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature