Combining CO2 Reduction with Ethane Oxidative Dehydrogenation by Oxygen-Modification of Molybdenum Carbide

The surface properties that determine the selectivity of Mo2C catalysts in ethane oxidative dehydrogenation with CO2 as a soft oxidant were investigated using a combination of pulse experiments and in-situ spectroscopic methods. Oxygen modification was discovered to be crucial for inhibiting the cle...

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Bibliographic Details
Published inACS catalysis Vol. 8; no. 6
Main Authors Yao, Siyu, Yan, Binhang, Jiang, Zhao, Liu, Zongyuan, Wu, Qiyuan, Lee, Ji Hoon, Chen, Jingguang G.
Format Journal Article
LanguageEnglish
Published United States American Chemical Society (ACS) 02.05.2018
Subjects
carbon dioxide
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
ethane
oxidative dehydrogenation
oxygen-modified molybdenum carbide
pulse reactor experiment
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Summary:The surface properties that determine the selectivity of Mo2C catalysts in ethane oxidative dehydrogenation with CO2 as a soft oxidant were investigated using a combination of pulse experiments and in-situ spectroscopic methods. Oxygen modification was discovered to be crucial for inhibiting the cleavage of the C–C bond in ethane and enhancing the production of ethylene. Here, the addition of the Fe promoter accelerated the formation of surface oxygen species and stabilized them from reduction by ethane, leading to a shorter induction period, higher ethylene yield, and improved stability.
Bibliography:USDOE Office of Science (SC), Basic Energy Sciences (BES)
SC0012704
BNL-207911-2018-JAAM
ISSN:2155-5435
2155-5435