The Preparation of Ordered Mesoporous Al2O3 and its Application in Ni-Based Catalysts for CH4/CO2 Reforming


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Template method was used to prepare ordered mesoporous alumina, and with purchased γ-Al2O3 contrast. BET results showed that the specific surface area and average pore diameter of the mesoporous Al2O3 were 226.95 m2.g-1 and 3.91nm respectively, and with higher degree of order. XRD results showed that the cat-P catalyst with the carrier of prepared ordered mesoporous alumina hold small active component grains, which means better dispersion. H2-TPR results showed that the SMSI effect of cat-P catalyst was stronger than that of cat-B. Stability tests showed that cat-P catalyst in 50h experiment showed high activity and stability, and the conversion of CH4 and CO2 were above 90% and 95% respectively among the reaction time, and the deactivation rate of CO2 was 0.05%/h only. From TG-DTG curve could be seen that the deposition carbon on cat-P catalyst after 48h reaction was in whisker form, which did not cover the active sites and had little influence on the activity and stability of the catalyst.



Edited by:

Seung-Bok Choi, Fauziah Shahul Hamid and Liyuan Han




W. L. Mo et al., "The Preparation of Ordered Mesoporous Al2O3 and its Application in Ni-Based Catalysts for CH4/CO2 Reforming", Applied Mechanics and Materials, Vol. 525, pp. 66-72, 2014

Online since:

February 2014




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