期刊
ACS CATALYSIS
卷 10, 期 4, 页码 2855-2871出版社
AMER CHEMICAL SOC
DOI: 10.1021/acscatal.9b04811
关键词
nonthermal plasma; catalysts; plasma catalysis; CO2 and CH4 conversion; oxygenated products; reaction mechanisms; experimental setups
资金
- US Department of Energy, Basic Energy Science, Catalysis Program [DE-FG02-13ER16381]
- National Natural Science Foundation of China [51702304]
- Young Elite Scientists Sponsorship Program by CAST [2018QNRC001]
- Shandong Provincial Education Department [2019KJD001]
- US National Science Foundation Graduate Research Fellowship Program [DGE 16-44869]
The co-conversion of CO2 and CH4 into oxygenates with nonthermal plasma is attracting considerable interest, principally because this approach can overcome thermodynamic limitations and enables operation under mild conditions. However, plasma must be coupled with appropriate catalysts in order to achieve satisfactory oxygenate selectivities. In this article, the mechanisms underlying plasma-catalytic CO2 + CH4 conversion to three different types of oxygenates (CH3OH, HCHO, and CH3COOH) are discussed along the scales of reaction time (ns to ms) and dimension (nm to mm). Particular emphasis is given to the synergy between plasma-phase and surface reactions. In addition, typical materials (both catalytic and noncatalytic) and experimental setups that can affect the selectivities of oxygenated products are also highlighted.
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