Self-Organized Nanostructured Ag/P2O5/SiO2 Material as a Catalyst for High-Temperature Selective Oxidation of Alcohols; Key Engineering Materials; Vol. 670 : Multifunctional Chemical Materials and Technologies

Détails bibliographiques
Parent link:Key Engineering Materials: Scientific Journal
Vol. 670 : Multifunctional Chemical Materials and Technologies.— 2015.— [P. 126-132]
Collectivité auteur: Национальный исследовательский Томский политехнический университет (ТПУ) Институт физики высоких технологий (ИФВТ) Кафедра общей химии и химической технологии (ОХХТ)
Autres auteurs: Knyazev A. S. Aleksey Sergeevich, Magaev O. V. Oleg Valerjevich, Kreyker A. A. Aleksey Aleksandrovich, Mamontov G. V. Grigory Vladimirovich, Dakhnavi E. M. Eldar Musaevich, Knyazeva E. M. Elena Mikhailovna, Vodyankina О. V. Olga Vladimirovna
Résumé:Title screen
New type of Ag-containing nanostructured catalyst for high-temperature alcohol oxidation was developed on the basis of mesoporous SiO2 support. Active component (silver clusters/nanoparticles) stabilized by support surface and polyphosphate inside the pores. It was shown that Ag/P2O5/SiO2 catalyst provides high activity in the course of ethylene glycol oxidation to glyoxal at 500-600 °C. Formation of stable structure of catalyst during thermal treatment includes self-organization of mesoporous structure and chemical bonding of phosphate with silica. The catalyst treatment in red-ox conditions leads to reversible oxidation-reduction of silver and its redistribution from bulk to surface of the catalyst. Silver nanoparticles stabilized with silica-phosphate support are active species in the ethylene glycol oxidation into glyoxal.
Режим доступа: по договору с организацией-держателем ресурса
Langue:anglais
Publié: 2015
Collection:Chemical Materials and Technologies in Chemical Manufacturing
Sujets:
Accès en ligne:http://dx.doi.org/10.4028/www.scientific.net/KEM.670.126
Format: MixedMaterials Électronique Chapitre de livre
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=646311