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6096631 
Journal Article 
Carbon dioxide methanation over Ni catalysts supported on various metal oxides 
Muroyama, H; Tsuda, Y; Asakoshi, T; Masitah, H; Okanishi, T; Matsui, T; Eguchi, K 
2016 
Yes 
Journal of Catalysis
ISSN: 0021-9517
EISSN: 1090-2694 
Elsevier 
343 
Elsevier 
178-184 
WOS:000387197600017 
Carbon dioxide methanation is well known to offer some advantages and be catalyzed by Ru, Rh, Pd, and Ni. In this study, Ni catalysts supported on various metal oxides were fabricated and their catalytic activity for CO2 methanation was evaluated. The CO2 conversion for most of catalysts drastically increased at 225–250°C and reached a maximal value at 300–350°C. The order of CH4 yield at 250°C was as follows: Ni/Y2O3>Ni/Sm2O3>Ni/ZrO2>Ni/CeO2>Ni/Al2O3>Ni/La2O3. The catalytic activity could be partly explained by the basic property of the catalysts. Moreover, the chemical species formed on the catalyst surface during CO2 methanation were examined by in situ infrared spectroscopy. From the obtained results, the difference in the activity depending on the support material of Ni catalysts was discussed. 
Carbon dioxide methanation; Nickel catalyst; Basic property; In situ infrared spectroscopy