Name : [in Japanese]
Location : [in Japanese]
Date : October 30, 2025 - October 31, 2025
Pages 62-63
CO₂ methanation is a promising reaction for reducing greenhouse gas emissions while producing methane as a useful fuel. In this study, Ni-supported BaZrO₃ catalysts with different calcination times were prepared, and the effect of calcination time on catalyst structural properties and CH₄ yield were investigated. The CH₄ yield obtained with Ni/BaZrO₃ catalysts calcined for 6 and 12 h was higher than that with the catalyst calcined for 24 h. At this time, the crystallite size of BaZrO₃ decreased with shorter calcination times, while the CO₂ adsorption capacity increased. These results suggest that the crystal growth of BaZrO3 does not proceed sufficiently with shorter calcination times, leading to the remaining of defects in part of the structure, which serve as active sites and consequently enhance the CH₄ yield.
