The Effect of Modification on the Structural, Acidic, and Catalytic Properties of a Layered Aluminosilicate Full article
Journal |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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Output data | Year: 2004, Volume: 45, Number: 5, Pages: 708-713 Pages count : 6 DOI: 10.1023/B:KICA.0000044983.93503.c1 | ||||
Tags | Silicate; Catalytic Activity; Calcination; Montmorillonite; Acid Site | ||||
Authors |
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Affiliations |
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Funding (2)
1 | Russian Foundation for Basic Research | 01-05-97254 |
2 | The Ministry of Education and Science of the Russian Federation | 33216 |
Abstract:
The effect of modification on the structural, acidic, and catalytic properties of a natural layered aluminosilicate containing 90% montmorillonite was studied. With the use of low-temperature nitrogen adsorption and XRD analysis, it was found that the addition of hydroxo complexes of aluminum prevents the silicate layers of the layered aluminosilicate from closing upon heating and results both in the formation of stable micropores and in a considerable increase in the specific surface area. The acidic properties of the H, Na, and Al forms of the layered aluminosilicate were studied by IR spectroscopy of adsorbed CO molecules and by the indicator method. After modification with hydroxo complexes of aluminum, the number of Lewis acid sites and the accessibility of acidic OH groups to CO adsorption increased. The total number and strength of acid sites increased as the calcination temperature of the layered aluminosilicate was increased. A correlation between catalytic activity in the reaction of acetone dimerization and the number of acid sites in different forms of the layered aluminosilicate was obtained.
Cite:
Khankhasaeva S.C.
, Badmaeva S.V.
, Dashinamzhilova E.C.
, Timofeeva M.N.
, Burgina E.B.
, Budneva A.A.
, Paukshtis E.A.
The Effect of Modification on the Structural, Acidic, and Catalytic Properties of a Layered Aluminosilicate
Kinetics and Catalysis. 2004. V.45. N5. P.708-713. DOI: 10.1023/B:KICA.0000044983.93503.c1 WOS Scopus РИНЦ
The Effect of Modification on the Structural, Acidic, and Catalytic Properties of a Layered Aluminosilicate
Kinetics and Catalysis. 2004. V.45. N5. P.708-713. DOI: 10.1023/B:KICA.0000044983.93503.c1 WOS Scopus РИНЦ
Original:
Ханхасаева С.Ц.
, Бадмаева С.В.
, Дашинамжилова Э.Ц.
, Тимофеева М.Н.
, Бургина Е.Б.
, Буднева А.А.
, Паукштис Е.А.
Влияние модифицирования на структурные, кислотные и каталитические свойства слоистого алюмосиликата
Кинетика и катализ. 2004. Т.45. №5. С.748-753. РИНЦ
Влияние модифицирования на структурные, кислотные и каталитические свойства слоистого алюмосиликата
Кинетика и катализ. 2004. Т.45. №5. С.748-753. РИНЦ
Dates:
Submitted: | Jul 17, 2003 |
Published print: | Sep 1, 2004 |
Identifiers:
Web of science | WOS:000224886200013 |
Scopus | 2-s2.0-6044229435 |
Elibrary | 18244065 |
Chemical Abstracts | 2004:840793 |
Chemical Abstracts (print) | 142:436529 |
OpenAlex | W1994939818 |