The influence of the preparation method on catalytic properties of Mo–Fe–O/SiO2 catalysts in selective oxidation of 1,2-propanediol

doi:10.1016/j.cattod.2019.08.061

Эндаумент фонд ТГУ!
Впиши своё имя в историю университета
- Сделать пожертвование -

Add to "Quick Collection"

Description	Size	Format
The influence of the preparation method on catalytic properties of Mo–Fe–O/SiO2 catalysts in selective oxidation of 1,2-propanediol	4 MB	Adobe Acrobat PDF	Read	Download
DOI Доступ к ресурсу на сайте издателя			10.1016/j.cattod.2019.08.061

#нанесенные катализаторы

#молибдат железа

#кремний

#окисление пропиленгликоля

#метилглиоксаль

#рамановская спектроскопия

Title: The influence of the preparation method on catalytic properties of Mo–Fe–O/SiO2 catalysts in selective oxidation of 1,2-propanediol
Creator: Savenko, Darya Yu.
|
Velieva, N. Yu.
|
Svetlichnyi, Valerii A.
|
Vodyankina, Olga V.
Date: 2020
DOI: 10.1016/j.cattod.2019.08.061
Description: The influence of the order of component introduction and Mo/Fe ratio in the silica-supported Mo-Fe-O catalysts on chemical and phase composition, redox and acid properties of the active catalyst surface, and catalytic activity in the selective oxidation of propylene glycol is considered. The catalysts are synthesized by wetness impregnation with a co-presence of the Fe and Mo components in the solution and sequential impregnation with varying the order of component introduction. The samples are characterized by low-temperature adsorption of N2, UV–vis, Raman spectroscopy, TPR-H2, and pulse NH3 adsorption methods. The effect of the preparation method on the phase composition and catalytic properties in selective oxidation of propylene glycol is shown. The catalyst prepared by sequential impregnation technique is more active and selective as compared to the one prepared by co-impregnation technique. The maximal selectivity towards methylglyoxal is achieved over the catalyst 3MoO3/Fe2O3/SiO2 prepared by introduction of the Mo-containing component onto the surface of the FeOx-precovered support. The role of the FeOx species adsorbed on the support surface with the participation of the SiOH groups is connected with the ability to facilitate the formation of highly dispersed Fe2(MoO4)3 and MoOx nanoparticles that are strongly bound with the SiO2 surface. © 2019 Elsevier B.V.

Relationships: Show Relationship Browser for this Object
collection(s): Химический факультет | Сибирский физико-технический институт
Identifier: смотреть в электронном каталоге НБ ТГУ
Relation: Catalysis today
Rights: Resource access is available in the premises of Research Library
Type: статьи в журналах
Source: Catalysis today. 2020. Vol. 357. P. 399-408
Language: eng

Created: 27-05-2025

38 Visitors

38 Hits

2 Downloads

Химический факультет

Сибирский физико-технический институт The influence of the preparation method on catalytic properties of Mo–Fe–O/SiO2 catalysts in selective oxidation of 1,2-propanediol