New Approach to the Novel Synthesis of Boehmite (γ-AlOOH) by Microwave Irradiation of Gibbsite: Kinetics of Solid-Phase Reactions and Dielectric Properties of the Reactants Full article
| Journal |
Catalysis in Industry
ISSN: 2070-0504 , E-ISSN: 2070-0555 |
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| Output data | Year: 2014, Volume: 6, Number: 2, Pages: 79-87 Pages count : 9 DOI: 10.1134/S2070050414020056 | ||||
| Tags | Amorphous component of gibb-site, Crystalline boehmite, Dielectric properties, Gibbsite, Kinetics, Mechanism, Microwave activation of gibbsite, Solid-phase reactions | ||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Russian Foundation for Basic Research | 13-03-00312 |
Abstract:
Microwave irradiation of gibbsite is suggested as a method of obtaining crystalline boehmite. The kinetics of solid-state transformations of gibbsite under microwave radiation has been investigated, and the dielectric properties of the initial and microwave-activated gibbsite samples have been determined. Extending the gibbsite irradiation time leads to an increase in tanδ. This indicates that microwave-activated gibbsite has a stronger capacity for dissipating microwave energy owing to the formation of an amorphous component containing a variable amount of weakly bound molecular water. The general chemical formula of the amorphous component can be represented as Al2O3 · xH2O (0.5 < x < 3.0). The results of this study can provide a basis for developing new, low-waste, resource- and energy-saving methods for the synthesis of crystalline boehmite and for converting it into γ-Al2O3 with acid-base and textural properties that are atypical of the known low-temperature modifications of Al3+ oxides.
Cite:
Krivoruchko O.P.
, Zhuzhgov A.V.
, Bolotov V.A.
, Tanashev Y.Y.
, Molina I.Y.
, Parmon V.N.
New Approach to the Novel Synthesis of Boehmite (γ-AlOOH) by Microwave Irradiation of Gibbsite: Kinetics of Solid-Phase Reactions and Dielectric Properties of the Reactants
Catalysis in Industry. 2014. V.6. N2. P.79-87. DOI: 10.1134/S2070050414020056 WOS Scopus РИНЦ OpenAlex
New Approach to the Novel Synthesis of Boehmite (γ-AlOOH) by Microwave Irradiation of Gibbsite: Kinetics of Solid-Phase Reactions and Dielectric Properties of the Reactants
Catalysis in Industry. 2014. V.6. N2. P.79-87. DOI: 10.1134/S2070050414020056 WOS Scopus РИНЦ OpenAlex
Original:
Криворучко О.П.
, Жужгов А.В.
, Болотов В.А.
, Танашев Ю.Ю.
, Молина И.Ю.
, Пармон В.Н.
Новый подход к синтезу бемита (γ-ALOOH) путем воздействия СВЧ-излучения на гиббсит: Кинетика твердофазных превращений и диэлектрические свойства реагентов
Катализ в промышленности. 2014. №2. С.7-16. РИНЦ AN OpenAlex
Новый подход к синтезу бемита (γ-ALOOH) путем воздействия СВЧ-излучения на гиббсит: Кинетика твердофазных превращений и диэлектрические свойства реагентов
Катализ в промышленности. 2014. №2. С.7-16. РИНЦ AN OpenAlex
Dates:
| Submitted: | Jan 24, 2014 |
| Published print: | Apr 1, 2014 |
| Published online: | Jun 25, 2014 |
Identifiers:
| Web of science: | WOS:000433670200001 |
| Scopus: | 2-s2.0-84905823951 |
| Elibrary: | 23980169 |
| OpenAlex: | W2090569391 |