TY  - JOUR
T1  - In situ Raman spectroscopy of plasma-catalyst interface for conversion of CO2 and CH4 to valuable compounds
A1  - Saito, Atsushi
A1  - Sheng, Zunrong
A1  - Nozaki, Tomohiro
Y1  - 2021///
KW  - CO2 conversion
KW  - carbon recycling
KW  - in situ Raman spectroscopy
KW  - plasma catalysis
JF  - International Journal of Plasma Environmental Science and Technology
VL  - 15
IS  - 2
SP  - e02007
EP  - e02007
DO  - 10.34343/ijpest.2021.15.e02007
UR  - http://ijpest.com/Contents/15/2/e02007.html
N2  - This study demonstrates the reduction of carbon dioxide (CO2) via a plasma-catalyst hybrid process in the presence of methane (CH4) and hydrogen (H2). Dielectric barrier discharge (DBD) plasma-activated Ar/CO2/CH4/H2 was applied to copper nanoparticles supported on zinc oxide (ZnO). The surface species and their reaction pathways were investigated via in situ Raman spectroscopy under DBD irradiation. The Raman shift peaks were identified from literature review and density functional theory (DFT) calculations. Acetate (CH3COO) was produced as the reaction product via a DBD -induced surface reaction. In addition, acetaldehyde (CH3CHO) was produced by irradiation with DBD -activated H2O. The conversion of CO2 and CH4 to valuable compounds was evaluated via in situ observations, and the reaction pathway was examined.
ER  -