Abstract: The anatase phase of titanium dioxide TiO2 is metastable and irreversibly converts to rutile at a temperature above 700 °C. This is accompanied by a significant decrease in the specific surface area and a change in the porous structure. Modification of titanium dioxide by the addition of alumina leads to the formation of the nanocrystalline structure of anatase and to a significant increase in the temperature of anatase to rutile phase transition up to 950 °C. After high-temperature annealing, the Al2O3-TiO2 sample is characterized by a higher specific surface area and a better developed porous structure than those of pure anatase with the regular crystal structure. The high thermal stability of the anatase phase in supported Pt/(Al2O3-TiO2) catalysts under calcination provides a high dispersion of platinum particles, which leads to the rather high catalytic activity of these catalysts in CO oxidation.

Cite: Shutilov A.A. , Zenkovets G.A.
Study of the Formation Features of the Active State in Supported Pt/TiO2 CO Oxidation Catalysts Doped with Alumina
Chemistry for Sustainable Development. 2020. V.28. N1. P.77-85. DOI: 10.15372/csd2020206 WOS РИНЦ OpenAlex

Original: Шутилов А.А. , Зенковец Г.А.
Изучение особенностей формирования активного состояния нанесенных катализаторов Pt/TiO2, модифицированных добавками оксида алюминия, в реакции окисления CO
Химия в интересах устойчивого развития. 2020. Т.28. №1. С.79-87. DOI: 10.15372/khur2020206 РИНЦ AN OpenAlex

Identifiers:

Web of science:	WOS:000572826900012
Elibrary:	47497047
OpenAlex:	W4241007750

Citing: Пока нет цитирований

Altmetrics: