期刊
CATALYSIS SCIENCE & TECHNOLOGY
卷 11, 期 2, 页码 479-483出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0cy02428g
关键词
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资金
- National Natural Science Foundation of China [21978125]
- Liaoning Revitalization Talents Program [XLYC1907003]
- Liaoning Provincial Department of Education Project [L2019002, L2017LFW008]
The oxidation-recarburization cycle is an important reaction mechanism in various Ni/Mo2C catalyzed reactions, where Mo2C undergoes structure transformation and Ni phase remains unchanged. A new cycle route involving Ni, Ni/Mo2C <-> MoNi4, has been discovered to impact the reaction proceeding significantly, with the formation rate of MoNi4 influencing the catalytic cycle speed.
Oxidation-recarburization cycle has become an important reaction mechanism in various Ni/Mo2C catalyzed reactions. In the cycle, Mo2C usually undergoes structure transformation (Mo2C <-> MoO2), while the Ni phase always remains unchanged. In the present study, we have found a new cycle route involving Ni, viz. Ni/Mo2C <-> MoNi4, in a Ni/Mo2C catalyzed CH4-CO2 reforming reaction. The formation rate of MoNi4 has a significant impact on the reaction proceeding. Once MoNi4 is formed in large quantities, the catalytic cycle will slow down sharply until it stops.
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