Catalyst selectivity Catalyst activity 12 Catalysts 10 Steam reforming 10 Carbon dioxide 8 Glycerol 8 Oxidation 8 Platinum 8 Catalyst supports 6 Copper 6 Nickel 6 Structural characteristics 6 Alumina 4 Aluminum 4 Atmospheric pressure 4 Atomic emission spectroscopy 4 Carbon 4 Carbon deposition 4 Catalysis 4 Cerium compounds 4 Hydrogen production 4 Inductively coupled plasma 4 Reduction 4 Steam reforming of glycerols 4 Temperature-programmed reduction 4 X ray photoelectron spectroscopy 4 Activity results 2 Air purification 2 Ammonia plants 2 Aromaticity 2