Oxidation of carbon monoxide on Au nanoparticles in titania and titania-coated silica aerogels

Autor:	Koji Tajiri, Fumihiko Ohashi, Masakazu Daté, Junichi Murakami, Yutaka Tai, Susumu Tsubota
Rok vydání:	2004
Předmět:	Silica gel Process Chemistry and Technology Supercritical drying Nanoparticle Mineralogy Aerogel Catalysis Titanium oxide law.invention chemistry.chemical_compound chemistry Chemical engineering law Calcination Carbon monoxide
Zdroj:	Applied Catalysis A: General. 268:183-187
ISSN:	0926-860X
DOI:	10.1016/j.apcata.2004.03.039
Popis:	We have prepared titania aerogel and titania-coated silica aerogel incorporating Au nanoparticles. While the sizes of the Au particles in the titania aerogel considerably increased upon calcination at 673 K, those in the titania-coated silica aerogel were almost unchanged. As a consequence, the latter composite aerogel showed higher activity for oxidation of CO. These results indicate that the size of the Au nanoparticles and the loading amount of Au can be independently controlled by using the titania-coated silica gel support.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f64d27e19cc358b3d94946c3678728ea https://doi.org/10.1016/j.apcata.2004.03.039 Zobrazit plný text záznamu Full Text from ScienceDirect