Preparation and characterization of hexaaluminate-based materials for catalytic combustion

✍ Scribed by G. Groppi; M. Bellotto; C. Cristiam; P. Forzatti; P.L. Villa

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 511 KB
• Volume: 104
• Category: Article
• ISSN: 0926-860X
• DOI: 10.1016/0926-860x(93)85092-4

✦ Synopsis

A simple preparation method for barium hexaalurninate-based catalysts to be used in catalytic combustion is described. Morphological and physico-chemical characterization data are given for Ba-Al-O (withBa/Al=l/lL) andfor Ba-Mn-Al-O (with Ba/Mn/Al=1/0.5/11.5; l/1/11; l/2/10) samplescalcined at different temperatures. The preparation method here proposed provides stable materials with a surface area of 15 m*/g after calcination at 1400°C. The structural and morphological properties, as well as the results of activity tests in methane combustion, compare well with those reported in the literature for samples with the same composition and prepared according to a more complex preparation route.