The effect of incorporation of iron in cerium oxide structure on reducibility and catalytic performance for methane oxidation in diluted streams

Beneficial Effects of Nickel Promoter on the Efficiency of Alumina-Supported Co3o4 Catalysts for Lean Methane Oxidation

“…Thus, the proposal of cheaper, highly efficient, alternative catalysts is a challenge of relevant interest. Most studies have been focused on the use of transition metal oxides, namely nickel [9,10], manganese [11,12], copper [13] or iron [14]. However, it is widely accepted that spinel cobalt oxide (Co 3 O 4 ) is the most attractive oxide phase for the lean methane catalytic combustion owing to the presence of variable valance states (Co 3+ /Co 2+ ), its lower bonding energy of Co-O bonds and the high mobility of active oxygen species capable of activating the C-H bond [15][16][17].…”