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Purification of Exhaust Gases from Gasoline Engine Using Adsorption-Catalytic Systems. Part 1: Trapping of Hydrocarbons by Ag-Modified ZSM-5 Full article

Общее Language: Английский, Genre: Full article,
Status: Published, Source type: Original
Journal Reaction Kinetics, Mechanisms and Catalysis
ISSN: 1878-5190 , E-ISSN: 1878-5204
Output data Year: 2019, Volume: 127, Number: 2, Pages: 945–959 Pages count : 15 DOI: 10.1007/s11144-019-01588-8
Tags Vehicle emissions; Cold-start; Hydrocarbon trapping; Ag–ZSM-5; CO oxidation; Prompt Thermal Aging Procedure
Authors Temerev V.L. 1 , Vedyagin A.A. 2,3 , Iost K.N. 1 , Pirutko L.V. 2 , Cherepanova S.V. 2,4 , Kenzhin R.M. 2 , Stoyanovskii V.O. 2 , Trenikhin M.V. 1 , Shlyapin D.A. 1
Affiliations
1 Center of New Chemical Technologies, Boreskov Institute of Catalysis SB RAS
2 Boreskov Institute of Catalysis SB RAS
3 National Research Tomsk Polytechnic University
4 National Research University-Novosibirsk State University

Funding (2)

1 Federal Agency for Scientific Organizations 0303-2016-0014
2 The Ministry of Education and Science of the Russian Federation 4.5200.2017

Abstract: In the present work, adsorptive-catalytic properties and thermal stability of the systems based on ZSM 5 zeolite and γ Al2O3, used as a binder, were studied. The zeolite was modified with silver, and the Ag loading used was 5 and 10 wt.%. Characterization of the samples by a transmission electron microscopy has revealed that for the 5%Ag/ZSM 5 sample the predominant part of silver is represented by ion-exchanged forms. The 10%Ag/ZSM 5 sample contains also silver nanoparticles and clusters on the outer zeolite surface. As it was found by means of X-ray diffraction analysis, all these surface Ag species are roentgen-amorphous. Diffuse reflectance UV-vis spectroscopy confirms presence of the surface Ag clusters, which concentration increases after the high-temperature aging. The adsorption capacity of the samples was estimated using toluene as a model aromatic compound. The composition of the reaction mixture during the aging procedures was varied in order to elucidate the contribution of different silver sites to hydrocarbons sorption, their partial oxidation and oxidation of carbon monoxide.
Cite: Temerev V.L. , Vedyagin A.A. , Iost K.N. , Pirutko L.V. , Cherepanova S.V. , Kenzhin R.M. , Stoyanovskii V.O. , Trenikhin M.V. , Shlyapin D.A.
Purification of Exhaust Gases from Gasoline Engine Using Adsorption-Catalytic Systems. Part 1: Trapping of Hydrocarbons by Ag-Modified ZSM-5
Reaction Kinetics, Mechanisms and Catalysis. 2019. V.127. N2. P.945–959. DOI: 10.1007/s11144-019-01588-8 publication_identifier_short.wos_identifier_type publication_identifier_short.scopus_identifier_type publication_identifier_short.rinz_identifier_type
Dates:
Submitted: Apr 10, 2019
Accepted: May 17, 2019
Published online: May 23, 2019
Published print: Aug 1, 2019
Identifiers:
publication_identifier.wos_identifier_type WOS:000475580200026
publication_identifier.scopus_identifier_type 2-s2.0-85068871479
publication_identifier.rinz_identifier_type 41618182
publication_identifier.accession_number_identifier_type 2019:1023521
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