Journal
REACTION KINETICS MECHANISMS AND CATALYSIS
Volume 111, Issue 1, Pages 137-148Publisher
SPRINGER
DOI: 10.1007/s11144-013-0643-5
Keywords
In situ DRIFTS; Oxygen vacancy; Methane combustion; Pd-Zr/Al2O3
Categories
Funding
- National 863 Plan of China [2010AA064904, 2012AA062702]
- National Natural Science Foundation of China [21177006]
Ask authors/readers for more resources
Surface species formed during the catalytic combustion of methane over Al2O3 supported Pd and Pd-Zr catalysts have been investigated by in situ DRIFTS techniques. It is found that formate and carbonate ions are formed during the reaction as intermediates, and the further oxidation of formate ion to carbonate ion requires reactive oxygen species supplied by activating gaseous oxygen at oxygen vacancies on the catalyst surface. Modification of Pd/Al2O3 catalyst by Zr addition leads to the increase of oxygen vacancy, which promotes the activation of gaseous oxygen and contributes to the oxidation of formate ion, resulting in a higher catalytic performance for the catalytic combustion of methane.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available