期刊
JOURNAL OF PHYSICAL CHEMISTRY C
卷 121, 期 41, 页码 22644-22655出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpcc.7b06524
关键词
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资金
- Fund for Scientific Research Flanders (FWO) [G.0383.16N]
- IAP/7 (Interuniversity Attraction Pole) program 'PSI Physical Chemistry of Plasma-Surface Interactions' by Belgian Federal Office for Science Policy (BELSPO)
- Hercules Foundation
- Flemish Government (department EWI)
- Universiteit Antwerpen
By means of chemical kinetics modeling, it is possible to elucidate the main dissociation mechanisms of CO2 in a gliding arc plasmatron (GAP). We obtain good agreement between the calculated and experimental conversions and energy efficiencies, indicating that the model can indeed be used to study the underlying mechanisms. The calculations predict that vibration-induced dissociation is the main dissociation mechanism of CO2, but it occurs mainly from the lowest vibrational levels because of fast thermalization of the vibrational distribution. Based on these findings, we propose ideas for improving the performance of the GAP, but testing of these ideas in the simulations reveals that they do not always lead to significant enhancement, because of other side effects, thus illustrating the complexity of the process. Nevertheless, the model allows more insight into the underlying mechanisms to be obtained and limitations to be identified.
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