DOIONLINE 
DOIONLINE Publish In |
International Journal of Advances in Science, Engineering and Technology(IJASEAT)-IJASEAT |
 Journal Home Volume Issue |
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Issue |
Volume-6, Issue-3, Spl. Iss-2 ( Sep, 2018 ) | |||||||||
Paper Title |
Catalytic Oxidation of Methane over Co Modified Pd/al2o3 Catalysts – Influence of The Cobalt Loading | |||||||||
Author Name |
S. Todorova, A. Naydenov, H. Kolev, A. Larin, 5k. Tenchev | |||||||||
Affilition |
Institute of Catalysis, Bulgarian Academy of Sciences, Acad. G. Bonchev St., bl. 11, 1113 Sofia, Bulgaria Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev St., bl. 11, 1113 Sofia, Bulgaria Department of Chemistry, Moscow State University, GSP-2, Leninskie Gory, Moscow 119992, Russia | |||||||||
Pages |
55-59 | |||||||||
Abstract |
The study is focused on the development of highly active and stablePd/Al2O3 catalyst for combustion of methane by varying the Co loading. The catalysts were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM) and temperature-programmed reduction (TPR).The catalytic tests show that the most active sample is Pd/0.25Co. The results from different physicochemical characterization indicate the present of palladium as Pd0 and Pd2+ (as PdO) and cobalt as Co-Al spinel like phase on the catalyst surface. We suggest that occurrence of Co-Al phase plays a significant role for the stabilization of the palladium as PdO, leading to high activity and stability in methane combustion. Keywords - Methane combustion, palladium, Pd–Co/alumina, promotion effect of Co. | |||||||||
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