Preparation of highly active nickel catalysts supported on mesoporous nanocrystalline gamma-Al2O3 for CO2 methanation

作者：Rahmani Soudabeh; Rezaei Mehran^*; Meshkani Fereshteh

来源：Journal of Industrial and Engineering Chemistry, 2014, 20(4): 1346-1352.

DOI：10.1016/j.jiec.2013.07.017

• Methanation
• CO2
• Ni/Al2O3 catalysts

In this study, a group of Ni catalysts supported on mesoporous nanocrystalline gamma-Al2O3 with high surface area and with different Ni contents was prepared and employed in carbon dioxide methanation reaction. The obtained results showed increasing in nickel content from 10 to 25 wt.% decreased the specific surface area of catalysts from 177 to 130 m(2)/g and increased the nickel crystallite size from 12 to 24 nm. In addition, increasing in nickel content increased the reducibility of catalyst. The catalytic results revealed that the catalyst with 20 wt.% of Ni possessed high activity and stability in CO2 methanation reaction.

• 出版日期2014-7-25