Sciact
  • EN
  • RU

Effect of Structural Defects in Alumina Supports on the Formation and Catalytic Properties of the Active Component of Reforming Catalysts Full article

Journal Reaction Kinetics, Mechanisms and Catalysis
ISSN: 1878-5190 , E-ISSN: 1878-5204
Output data Year: 2013, Volume: 110, Number: 2, Pages: 459-470 Pages count : 12 DOI: 10.1007/s11144-013-0599-5
Tags Defects of γ-alumina, PDF method, Platinum catalyst, Reforming
Authors Moroz Ella M. 1 , Zyuzin Dmitriy A. 1 , Tregubenko Valentina Yu. 2 , Udras Irina E. 2 , Belyi Alexander S. 2 , Likholobov Vladimir A. 2
Affiliations
1 Boreskov Institute of Catalysis SB RAS, Lavrentieva Str. 5, 630090 Novosibirsk, Russia
2 Institute of Hydrocarbons Processing SB RAS, Neftezavodskaya Str. 54, 644040 Omsk, Russia

Funding (1)

1 Russian Foundation for Basic Research 09-03-90424

Abstract: The pair distribution function (PDF method) was used to investigate the phase composition and local structure of supports and the model reforming catalysts Pt/γ-Al2O3. The structural modification of support during acidic peptization of aluminum hydroxide with the pseudoboehmite structure was suggested as a possible approach to obtaining highly defective alumina. This modification of γ-Al2O3 results in the formation of a greater number of cation vacancies in the octahedral positions of the spinel-like alumina structure. The effect of structural defects in the support on the oxidation state of the active component and catalytic properties of the catalysts was demonstrated. It was found that platinum ions are located in the vacant octahedral positions (defects) of the spinel-like structure of the support. These ionic platinum centers on alumina with higher defect density demonstrated a higher selectivity in the model reaction of n-heptane aromatization as compared to metallic centers which prevail in traditional Pt/γ-Al2O3 catalyst.
Cite: Moroz E.M. , Zyuzin D.A. , Tregubenko V.Y. , Udras I.E. , Belyi A.S. , Likholobov V.A.
Effect of Structural Defects in Alumina Supports on the Formation and Catalytic Properties of the Active Component of Reforming Catalysts
Reaction Kinetics, Mechanisms and Catalysis. 2013. V.110. N2. P.459-470. DOI: 10.1007/s11144-013-0599-5 WOS Scopus РИНЦ РИНЦ ANCAN OpenAlex
Files: Full text from publisher
Dates:
Submitted: Mar 29, 2013
Accepted: Jun 27, 2013
Published online: Jul 12, 2013
Published print: Dec 1, 2013
Identifiers:
Web of science: WOS:000327219200015
Scopus: 2-s2.0-84890959051
Elibrary: 20439706 | 41744712
Chemical Abstracts: 2013:1098374
Chemical Abstracts (print): 159:670352
OpenAlex: W2024440524
Citing:
DB Citing
Web of science 10
Scopus 10
Elibrary 5 10
OpenAlex 10
Altmetrics: