Reforming of methane over two-dimensional Mo2C-Ni/γ-Al2O3 catalyst

被引：0
|
作者：
Shirvani, Samira [1 ]
Smith, Kevin J. [1 ]
机构：
[1] Univ British Columbia, Chem & Biol Engn Dept, Vancouver, BC, Canada
来源：
APPLIED CATALYSIS A-GENERAL | 2024年 / 687卷
基金：
加拿大创新基金会; 加拿大自然科学与工程研究理事会;
关键词：
Dry reforming; Syngas; Two-dimensional nanomaterials; Molybdenum carbide; Nickel; Kinetics; MOLYBDENUM CARBIDE; CARBON-DIOXIDE; SYNTHESIS GAS; DRY; HYDRODEOXYGENATION; CONVERSION; STABILITY; NI;
D O I：
10.1016/j.apcata.2024.119945
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The impact of two-dimensional Mo2C (2D-Mo2C) on the activity and stability of a Ni/gamma-Al2O3 catalyst for the dry reforming of methane (DRM) is reported. 1.1 wt% 2D-Mo2C added to 13 wt% Ni/gamma-Al2O3 increased activity by similar to 40 %. Characterization results showed an interaction between 2D-Mo2C and Ni that resulted in the formation of a NixMoy bulk phase (XRD) and Ni-Mo-oxycarbide surface species (XPS). The presence of 2D-Mo2C also improved the stability of the catalyst compared to Ni/gamma-Al2O3 by reducing coke deposition. H-2 space-time-yields (STYs) were independent of CO2 partial pressure and were lower than the CO STYs. Power law kinetic models were consistent with a DRM reaction pathway via CH4 decomposition (MD) and the reverse Boudouard (RBD) reactions.
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页数：12
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