Low Temperature Methanation of CO<sub>2</sub> on High Ni Content Ni-Ce-ZrO<sub>δ</sub> Catalysts Prepared via One-Pot Hydrothermal Synthesis
Vissanu Meeyoo,
Noppadol Panchan,
Nat Phongprueksathat,
Atsadang Traitangwong,
Xinpeng Guo,
Chunshan Li,
Thirasak Rirksomboon
Affiliations
Vissanu Meeyoo
Centre for Advanced Materials and Environmental Research, Mahanakorn University of Technology, Bangkok 10530 Thailand
Noppadol Panchan
Centre for Advanced Materials and Environmental Research, Mahanakorn University of Technology, Bangkok 10530 Thailand
Nat Phongprueksathat
Centre for Advanced Materials and Environmental Research, Mahanakorn University of Technology, Bangkok 10530 Thailand
Atsadang Traitangwong
Beijing Key Laboratory of Ionic Liquids Clean Process, State Key Laboratory of Multiphase Complex System, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
Xinpeng Guo
Beijing Key Laboratory of Ionic Liquids Clean Process, State Key Laboratory of Multiphase Complex System, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
Chunshan Li
Beijing Key Laboratory of Ionic Liquids Clean Process, State Key Laboratory of Multiphase Complex System, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
Thirasak Rirksomboon
The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok 10330, Thailand
Ni-Ce-Zr-Oδ catalysts were prepared via one-pot hydrothermal synthesis. It was found that Ni can be partially incorporated into the Ce-Zr lattice, increasing surface oxygen species. The catalysts possess high surface areas even at high Ni loadings. The catalyst with Ni content of 71.5 wt.% is able to activate CO2 methanation even at a low temperature (200 °C). Its CO2 conversion and methane selectivity were reported at 80% and 100%, respectively. The catalyst was stable for 48 h during the course of CO2 methanation at 300 °C. Catalysts with the addition of medium basic sites were found to have better catalytic activity for CO2 methanation.
