Aggregation Mechanisms of Silica Particles in the Sol–Gel Synthesis of Promoted Silver Catalysts Full article
| Journal |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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| Output data | Year: 2019, Volume: 60, Number: 4, Pages: 490-495 Pages count : 6 DOI: 10.1134/s0023158419040062 | ||||||
| Tags | small-angle X-ray scattering, silicate materials, silicate–phosphate materials, sol–gel synthesis, Ostwald ripening, coalescence | ||||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Federal Agency for Scientific Organizations | 0303-2017-0002 |
Abstract:
As found using in situ small-angle X-ray scattering (SAXS), a porous structure consisting of compact particles with sizes from 2 to 8 nm was formed as a result of the sol–gel synthesis of silicate, silicate–phosphate, and silicate–phosphate–silver gels from tetraethoxysilane. It was established that the aggregation of silica particles in the presence of nitric acid proceeds according to a coalescence mechanism. The presence of phosphoric acid in the system changes the mechanism of aggregation for Ostwald ripening. The introduction of silver nitrate into the system does not significantly affect the size of silica particles and the mechanism of their aggregation.
Cite:
Larichev Y.V.
, Vodyankina O.V.
Aggregation Mechanisms of Silica Particles in the Sol–Gel Synthesis of Promoted Silver Catalysts
Kinetics and Catalysis. 2019. V.60. N4. P.490-495. DOI: 10.1134/s0023158419040062 WOS Scopus РИНЦ AN OpenAlex
Aggregation Mechanisms of Silica Particles in the Sol–Gel Synthesis of Promoted Silver Catalysts
Kinetics and Catalysis. 2019. V.60. N4. P.490-495. DOI: 10.1134/s0023158419040062 WOS Scopus РИНЦ AN OpenAlex
Original:
Ларичев Ю.В.
, Водянкина О.В.
Изучение механизмов агрегации частиц кремнезема при золь–гель-синтезе промотированных серебряных катализаторов
Кинетика и катализ. 2019. Т.60. №4. С.526-531. DOI: 10.1134/S0453881119040087 РИНЦ OpenAlex
Изучение механизмов агрегации частиц кремнезема при золь–гель-синтезе промотированных серебряных катализаторов
Кинетика и катализ. 2019. Т.60. №4. С.526-531. DOI: 10.1134/S0453881119040087 РИНЦ OpenAlex
Dates:
| Submitted: | Dec 30, 2018 |
| Accepted: | Mar 19, 2019 |
| Published print: | Jul 1, 2019 |
| Published online: | Aug 26, 2019 |
Identifiers:
| Web of science: | WOS:000482926500013 |
| Scopus: | 2-s2.0-85071477867 |
| Elibrary: | 41641389 |
| Chemical Abstracts: | 2019:1651058 |
| OpenAlex: | W2971221250 |