Insight into the key factors of β-Mo2C catalyst for the reverse water gas shift reaction

doi:10.1039/d4ra08875a

Insight into the key factors of β-Mo2C catalyst for the reverse water gas shift reaction

2025-01-01

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DOI：10.1039/d4ra08875a

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In this study, we found that beta-Mo2C prepared at different carbonization temperatures exhibited significantly different catalytic activities for the reverse water gas shift (RWGS) reaction. The beta-Mo2C synthesized at 600 degrees C demonstrated notably higher activity compared to those prepared at 700 degrees C and 800 degrees C. This enhanced activity was likely attributed to its improved redox properties, which were primarily driven by a smaller crystallite size and the presence of MoxOCy species. Therefore, we proposed that the crystallite size and MoxOCy content were the key factors governing the RWGS activity of beta-Mo2C. Clearly, both factors were strongly influenced by the carbonization temperature. Notably, the beta-Mo2C prepared at 600 degrees C even outperformed Cu-doped beta-Mo2C prepared at 700 degrees C under similar reaction conditions.

Keywords:

MOLYBDENUM CARBIDE

CO2 CONVERSION

REDUCTION

MECHANISM

NANOPARTICLES

ALPHA-MOC1-X

PROMOTER

METHANE

CARBON

CU

Insight into the key factors of β-Mo2C catalyst for the reverse water gas shift reaction

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