caa a22 4500 463252128 CHVBK 20180405153343.0 cr unu---uuuuu 170326e20071101xx s 000 0 eng 10.1007/s10562-007-9210-x doi (NATIONALLICENCE)springer-10.1007/s10562-007-9210-x Pt-Al2O3 Cryogel with High Thermal Stability for Catalytic Combustion [Elektronische Daten] [Toshihiko Osaki, Kiho Nagashima, Koji Watari, Koji Tajiri] The cryogel catalyst of platinum on alumina was prepared from aluminum sec-butoxide and H2PtCl6 through the sol-gel technique and subsequent freeze drying. The cryogel catalyst showed higher thermal stability of platinum than the corresponding xerogel or impregnation catalysts, which was ascribed to the more intimately developed platinum-alumina interaction accompanied by the encapsulation of the metal into the alumina cryogel. It was also shown that platinum accessibility was higher on the cryogel than on the xerogel despite the higher thermal stability of the metal on the formed than on the latter. For the VOC combustion, the cryogel exhibited higher activity than the xerogel and impregnation catalysts. Also for the methane combustion the cryogel showed higher activity, although it showed lower activity than the impregnation catalysts above 600°C. By the addition of ceria as an additive to the cryogel catalyst, the CH4 combustion activity was improved especially in the temperature region above 600°C. Springer Science+Business Media, LLC, 2007 Cryogel nationallicence Sol-gel nationallicence Freeze drying nationallicence Platinum nationallicence Alumina nationallicence Catalytic combustion nationallicence Thermal stability nationallicence Dispersion nationallicence VOC nationallicence Methane nationallicence Osaki Toshihiko National Institute of Advanced Industrial Science and Technology (AIST), 2266-98, Anagahora, Shimoshidami, Moriyama-ku, 463-8560, Nagoya, Japan aut Nagashima Kiho National Institute of Advanced Industrial Science and Technology (AIST), 2266-98, Anagahora, Shimoshidami, Moriyama-ku, 463-8560, Nagoya, Japan aut Watari Koji National Institute of Advanced Industrial Science and Technology (AIST), 2266-98, Anagahora, Shimoshidami, Moriyama-ku, 463-8560, Nagoya, Japan aut Tajiri Koji National Institute of Advanced Industrial Science and Technology (AIST), 2266-98, Anagahora, Shimoshidami, Moriyama-ku, 463-8560, Nagoya, Japan aut Catalysis Letters Springer US; http://www.springer-ny.com 119/1-2(2007-11-01), 134-141 1011-372X 119:1-2<134 2007 119 10562 https://doi.org/10.1007/s10562-007-9210-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10562-007-9210-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Osaki Toshihiko National Institute of Advanced Industrial Science and Technology (AIST), 2266-98, Anagahora, Shimoshidami, Moriyama-ku, 463-8560, Nagoya, Japan aut NATIONALLICENCE 700 1- Nagashima Kiho National Institute of Advanced Industrial Science and Technology (AIST), 2266-98, Anagahora, Shimoshidami, Moriyama-ku, 463-8560, Nagoya, Japan aut NATIONALLICENCE 700 1- Watari Koji National Institute of Advanced Industrial Science and Technology (AIST), 2266-98, Anagahora, Shimoshidami, Moriyama-ku, 463-8560, Nagoya, Japan aut NATIONALLICENCE 700 1- Tajiri Koji National Institute of Advanced Industrial Science and Technology (AIST), 2266-98, Anagahora, Shimoshidami, Moriyama-ku, 463-8560, Nagoya, Japan aut NATIONALLICENCE 773 0- Catalysis Letters Springer US; http://www.springer-ny.com 119/1-2(2007-11-01), 134-141 1011-372X 119:1-2<134 2007 119 10562 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer