[24p-31B-1~15] 8.5 Plasma phenomena, emerging area of plasmas and their new applications

2:30 PM - 2:45 PM JST(5:30 AM - 5:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[24p-31B-5] Plasma-assisted CO₂ methanation: Reaction promotion by atomic hydrogen

〇Daeyeong Kim¹, Shinya Furukawa², Tomohiro Nozaki¹ (1.Tokyo Tech., 2.Osaka Univ.)

Keywords:

Plasma catalysis,CO2 methanation,Reaction mechanism

Plasma catalysis is attracting attention as a promising technology for CO₂ valorization based on the electrification of chemical processes. However, the interaction between plasma-activated species and catalysts is not yet fully understood. In this study, we suggest that CO₂ methanation performance can be improved by plasma reaction over Ni/Al₂O₃ at low temperatures. Using kinetic study and in situ/operando transmission infrared absorption spectroscopy-mass spectrometer, it was revealed that atomic hydrogen by plasma is the key factor promoting the reaction.