Catalysis Today, Vol.157, No.1-4, 170-176, 2010
The deposition of coke during carbon dioxide reforming of methane over intermetallides
Dry reforming of methane was studied over the systems on the base of Ni(3)Al and Ni(3)Al + 5%Mo in the temperature range 600-900 degrees C The materials have been prepared by self-propagating high temperature synthesis and characterized by XRD (in situ and ex situ) DTA-TG SEM + EDX HRTEM + EDS and XPS The formation of Mo(2)C phase was observed at moderate Mo content (5-10 wt %) which corresponds to a much improved catalytic activity and stability under the severe carbon dioxide reforming conditions The structure and morphology of different types of carbon deposits obtained on Ni(3)Al and Ni(3)Al + 5%Mo catalysts were investigated The results indicated that the addition a low amount of Mo to Ni(3)Al led to a decrease in carbon deposition It is shown that Ni(3)Al + 5%Mo is promising catalyst for dry reforming of methane with carbon dioxide (C) 2010 Elsevier B V All rights reserved