Adsorption-Catalytic Properties of Ag-Modified ZSM-23 | Sciact - CRIS-system of Boreskov Institute of Catalysis

Adsorption-Catalytic Properties of Ag-Modified ZSM-23 Full article

Conference

Юбилейная научная конференция "XXI век: Химия в жизнь"
24-26 Apr 2019 , Омск

Journal

AIP Conference Proceedings
ISSN: 0094-243X , E-ISSN: 1551-7616

Output data

Year: 2019, Volume: 2143, Article number : 020026, Pages count : 6 DOI: 10.1063/1.5122925

Authors

Temerev V.L. ¹ , Vedyagin A.A. ² , Iost K.N. ¹ , Pirutko L.V. ² , Cherepanova S.V. ² , Trenikhin M.V. ¹ , Gulyaeva T.I. ¹ , Savel’eva G.G. ¹ , Popov A.A. ³ , Plyusnin P.E. ³ , Shubin Y.V. ³ , Shlyapin D.A. ¹

Affiliations

1	Center of New Chemical Technologies BIC
2	Boreskov Institute of Catalysis
3	Nikolaev Institute of Inorganic Chemistry

Funding (1)

Federal Agency for Scientific Organizations

0303-2016-0014

In the present research, the adsorption-desorption properties of the ZSM-23 zeolite (SiO2/Al2O3 ratio of 100) with respect to toluene used as a model adsorbate were examined. Both the pristine and Ag-modified samples were studied using specially designed installation and technique allowing quantitative determination of the weakly and strongly bounded toluene species, which desorb within the ranges of 100-200 and 200-400 °C, respectively. Thermal stability of the samples along with the catalytic activity in oxidation of CO and hydrocarbons was investigated in a prompt thermal aging regime. It was found that toluene adsorbs predominantly on the outer surface of the zeolite, and the contribution of its inner porous structure into the adsorption process is negligible. Modification of the zeolite with silver was shown to improve the adsorption properties noticeably. Thus, the amount of strongly bounded toluene is increased by 1.8 times. At the same time, introduction of silver has a drawback connected with destruction of the zeolite structure. Moreover, after the prompt thermal aging the silver particles were mainly found to be agglomerated and coated by silica released from the zeolite lattice. Additionally, the part of silver species was found on alumina used a binder, thus testifying towards silver migration from one oxide support to another.

Temerev V.L. , Vedyagin A.A. , Iost K.N. , Pirutko L.V. , Cherepanova S.V. , Trenikhin M.V. , Gulyaeva T.I. , Savel’eva G.G. , Popov A.A. , Plyusnin P.E. , Shubin Y.V. , Shlyapin D.A.
Adsorption-Catalytic Properties of Ag-Modified ZSM-23
AIP Conference Proceedings. 2019. V.2143. 020026 :1-6. DOI: 10.1063/1.5122925 WOS Scopus РИНЦ AN OpenAlex publication_identifier_short.sciact_ihcp_identifier_type

Published online:

Aug 16, 2019

Web of science:	WOS:000505769900026
Scopus:	2-s2.0-85071272815
Elibrary:	41659414
Chemical Abstracts:	2019:2069969
OpenAlex:	W2967787058
publication_identifier.sciact_ihcp_identifier_type:	1972

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