Publication Date:
2018-05-17
Description:
Three-dimensionally ordered mesoporous Mn 2 O 3 ( meso -Mn 2 O 3 ) and its supported Au, Ru, and AuRu alloy (0.49 wt% Au/ meso -Mn 2 O 3 , 0.48 wt% Ru/ meso -Mn 2 O 3 , and 0.97 wt% AuRu/meso-Mn 2 O 3 (Au/Ru molar ratio = 0.98)) nanocatalysts were prepared using the KIT-6-templating and polyvinyl alcohol-protected reduction methods, respectively. Physicochemical properties of the samples were characterized by means of numerous techniques, and their catalytic activities were evaluated for the combustion of methane. It is found that among all of the samples, 0.48 wt% Ru/ meso-Mn 2 O 3 and 0.97 wt% AuRu/ meso -Mn 2 O 3 performed the best (the reaction temperature ( T 90% ) at 90% methane conversion was 530-540°C), but the latter showed a better thermal stability than the former. The partial deactivation ...
Print ISSN:
1757-8981
Electronic ISSN:
1757-899X
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
