Abstract: The present work is devoted to comparative analysis of the activity and stability of low-percentage palladium catalysts under conditions of three-route catalysis (CO and hydrocarbons oxidation, and nitrogen oxides reduction). Gamma alumina and delta alumina were used as carriers. Catalysts containing 0.12 % Pd and δ-Al2O3 on γ-Al2O3 and δ-Al2O3 were prepared by the wetness impregnation method. The resulting samples were studied by a set of physicochemical method. The forced thermal ageing method was used to assess the stability of catalysts to deactivation processes of the active component of Pd. Ethane hydrogenolysis allowed assessing the dispersion degree of the active component. The highly sensitive methods of electron spin resonance (ESR) and electron spectroscopy of diffuse reflectance (ESDR) were used to study the state of deposited palladium. Testing of the catalytic activity of samples under conditions of three-route catalysis was carried out. As a result, it was demonstrated that phase conversions of an alumina carrier did not exert significant effects on the thermal stability of samples during catalytic reactions.

Cite: Kenzhin R.M. , Vedyagin A.A. , Volodin A.M. , Stoyanovskii V.O. , Slavinskaya E.M. , Plyusnin P.E. , Shubin Y.V. , Mishakov I.V.
Effect of Carrier Phase Conversions on the Thermal Stability of γ- and δ-Alumina Catalysts with Low Palladium Content
Chemistry for Sustainable Development. 2017. V.25. N1. P.25-33. WOS РИНЦ

Original: Кенжин Р.М. , Ведягин А.А. , Володин А.М. , Стояновский В.О. , Славинская Е.М. , Плюснин П.Е. , Шубин Ю.В. , Мишаков И.В.
Влияние фазовых превращений носителя на термостабильность катализаторов на основе γ- и δ-фаз оксида алюминия с низким содержанием палладия
Химия в интересах устойчивого развития. 2017. Т.25. №1. С.25-33. DOI: 10.15372/KhUR20170104RSCI РИНЦ AN OpenAlex

Identifiers:

Web of science:	WOS:000412478800004
Elibrary:	32199175

Citing:

DB	Citing
Web of science	3
Elibrary	10