Journal
CATALYSIS TODAY
Volume 256, Issue -, Pages 13-22Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cattod.2015.04.009
Keywords
Nonthermal plasma; Catalyst, VOC removal, Zeolite
Funding
- [26400539]
- Grants-in-Aid for Scientific Research [26400539] Funding Source: KAKEN
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Low temperature catalytic reactions induced by nonthermal plasma (NTP) have been of great interest in plasma chemistry for application to pollution control and energy-related issues. Current progress in the experimental observations and the understanding of interactions between NTP and catalyst are reviewed herein. Considering the diffusion length and lifetime of reactive species, we introduced a dimensionless parameter Lambda that describes the criteria for a direct interaction between NTP and catalysts. Several lines of experimental evidences on the interaction were introduced: discharge mode, formation of metal cluster ions, and plasma-induced fluorescence from the catalyst. For faujasite zeolites, the Si/Al ratio was found to be an important parameter that determines the propagation of surface streamers and catalytic performance. The oxidation status of metals is closely correlated with the Si/Al ratio, which is related to substantial changes in electrical resistivity. (C) 2015 Elsevier B.V. All rights reserved.
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