Synthesis of highly coke resistant Ni nanoparticles supported MgO/ZnO catalyst for reforming of methane with carbon dioxide

Synthesis of highly coke resistant Ni nanoparticles supported MgO/ZnO catalyst for reforming of methane with carbon dioxide

Type	Journal Article
Author	Rajib Kumar Singha
Author	Aditya Yadav
URL	http://www.sciencedirect.com/science/article/pii/S0926337316302028
Volume	191
Pages	165-178
Publication	Applied Catalysis B: Environmental
Date	August 15, 2016
Abstract	Researchers fabricated ni-nanoparticles supported on MgO promoted nanocrytalline zinc oxide catalyst using the hydrothermal method in presence of cationic surfactant cetyltrimethylammonium bromide. The catalyst showed exhibited superior activity for the reforming of methane with carbon dioxide to produce synthesis gas, where H2/CO ratio was almost 1 and the catalyst showed no deactivation for more than 100 h. Transmission electron microscopy and H2-chemisorption analysis indicated that highly dispersed Ni nanoparticles with average size 5.7 nm, present on ZnO when MgO was added with the catalyst. The strong Ni–ZnO interaction was evidenced from TPR and EXAFS analysis. The presence of highly dispersed Ni nanoparticles and strong metal support interaction enhanced the reduction behaviour of the Ni-MgO/ZnO catalyst. The presence of MgO increased the adsorption behaviour of CO2, enhanced the dissociation of CO2 and accelerated the carbon elimination.