Au/TiO2 catalysts promoted with Fe and Mg for n-octanol oxidation under mild conditions; Catalysis Today; Vol. 278, Pt. 1 : Selectivity in Oxidation: Key to new resources valorization (ISO ’15)

Au/TiO2 catalysts promoted with Fe and Mg for n-octanol oxidation under mild conditions; Catalysis Today; Vol. 278, Pt. 1 : Selectivity in Oxidation: Key to new resources valorization (ISO ’15)

Dades bibliogràfiques
Parent link:Catalysis Today.— , 1987-
Vol. 278, Pt. 1 : Selectivity in Oxidation: Key to new resources valorization (ISO ’15).— 2016.— [P. 104–112]
Autor corporatiu: Национальный исследовательский Томский политехнический университет (ТПУ) Институт природных ресурсов (ИПР) Кафедра физической и аналитической химии (ФАХ)
Altres autors: Kotolevich Yu. I. Yuliya, Kolobova E. N. Ekaterina Nikolaevna, Mamontov G. V. Grigory Vladimirovich, Khramov E. A. Evgeny, Cabrera Ortega J. E. Jesus Efren, Tiznado H. L. Hugo, Farias M. H. Mario, Bogdanchikova N. E. Nina Evgenjevna, Zubavichus Ya. V. Yan Vitautasovich, Mota-Morales J. D. Josue, Cortes C. V. Corberan, Zanella R. A. Rodolfo, Pestryakov A. N. Aleksey Nikolaevich
Sumari:Title screen
This work aims to further the understanding of gold-based catalytic oxidation of n-octanol in liquid phase. Modification of catalysts with metal oxides additives (Fe or Mg) was used as a tool for transforming and stabilizing gold species. Structural, electronic and catalytic properties of gold catalysts were systematically investigated by means of DRS, H2, CO FTIR, SBET, EDS and SEM, HRTEM, SR-XRD, XANES, XPS and liquid phase n-octanol oxidation. Addition of modifiers affects Au electronic properties, but not the structural ones. Characterization results allow excluding Au3+ ions as candidates for active sites in n-octanol oxidation. In Au/Mg/TiO2, gold exhibited more reduced states while in Au/Fe/TiO2 gold was more oxidized; Au/TiO2 for intermediate oxidized states was found. The proper balance of oxidation states in the gold surface of Au/Mg/TiO2 can be responsible for its higher activity compared with Au/Fe/TiO2 and Au/TiO2 towards n-octanol oxidation. Finally our approach shed light on the nature of active sites for n-octanol oxidation on gold and furthers the development of green base-free catalytic oxidation of alcohols.
Режим доступа: по договору с организацией-держателем ресурса
Idioma:anglès
Publicat: 2016
Matèries:
электронный ресурс
труды учёных ТПУ
Au/TiO2
железо
магний
окисление
катализаторы
оксиды железа
окиды магния
золото
электронное состояние
Accés en línia:http://dx.doi.org/10.1016/j.cattod.2016.05.002
Format: Electrònic Capítol de llibre
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=652336

Ítems similars

Ítems similars