Abstract
The transition metals of groups 8, 9 and 10, i.e. nickel, ruthenium, palladium, rhodium, platinum, copper, molybdenum, rhenium, silver, gold, iron and cobalt, are active for the carbon dioxide methanation reaction and given that Ni is much more widely available as well as cheaper than noble metals, most research on CO2 methanation is now focused on Ni-based catalysts. Of the transition me…