KFU. Card publication. Influence of hydrothermal conditions on the phase transformations of amorphous alumina

KAZAN
FEDERAL UNIVERSITY

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INFLUENCE OF HYDROTHERMAL CONDITIONS ON THE PHASE TRANSFORMATIONS OF AMORPHOUS ALUMINA

Form of presentation

Articles in international journals and collections

Year of publication

2021

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Authors, employees of KFU

Egorova Svetlana Robertovna, author

Lamberov Aleksandr Adolfovich, author

Nosova Oksana Vitalevna, author

Khamieva Aliya Nailevna, author

Bibliographic description in the original language

Mukhamedyarova, A.N. Influence of hydrothermal conditions on the phase transformations of amorphous alumina / A.N. Mukhamedyarova, S.R.Egorova, O.V. Nosova, A.A.Lamberov // Mendeleev Communications. – 2021. - V.31, N 3. – pp. 385‒387 (DOI: 10.1016/j.mencom.2021.05.034)

Annotation

Monophasic amorphous alumina was obtained by heat treating in muffle furnace at 550 ?� during 2 h (heating rate 5 ?�/min). Precursor of amorphous alumina was the product of aluminum isopropoxide hydrolysis by water vapor and included >90 wt% of amorphous hydroxide. Polyaluminoxanes, stabilized in aluminum monohydroxide (boehmite), and amorphous aluminum hydroxide were formed during hydrolysis of aluminum alkoxides. Amorphous aluminum hydroxide was transformed into amorphous alumina after heat treatment at T <550 ?�, aluminoxanes and boehmite were converted analogously to γ-Al2O3

Keywords

amorphous alumina, hydrothermal conditions

The name of the journal

MENDELEEV COMMUNICATIONS

On-line resource for training course

http://dspace.kpfu.ru/xmlui/bitstream/handle/net/163799/F_mendcomm_2021_05_034_suppl.pdf?sequence=1&isAllowed=y

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=253154&p_lang=2

Resource files

File name	Size (MB)	Format
F_mendcomm_2021_05_034_suppl.pdf	1,06	pdf	show / download

Full metadata record

Field DC	Value	Language
dc.contributor.author	Egorova Svetlana Robertovna	ru_RU
dc.contributor.author	Lamberov Aleksandr Adolfovich	ru_RU
dc.contributor.author	Nosova Oksana Vitalevna	ru_RU
dc.contributor.author	Khamieva Aliya Nailevna	ru_RU
dc.date.accessioned	2021-01-01T00:00:00Z	ru_RU
dc.date.available	2021-01-01T00:00:00Z	ru_RU
dc.date.issued	2021	ru_RU
dc.identifier.citation	Mukhamedyarova, A.N. Influence of hydrothermal conditions on the phase transformations of amorphous alumina / A.N. Mukhamedyarova, S.R.Egorova, O.V. Nosova, A.A.Lamberov // Mendeleev Communications. – 2021. - V.31, N 3. – pp. 385‒387 (DOI: 10.1016/j.mencom.2021.05.034)	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=253154&p_lang=2	ru_RU
dc.description.abstract	MENDELEEV COMMUNICATIONS	ru_RU
dc.description.abstract	Monophasic amorphous alumina was obtained by heat treating in muffle furnace at 550 ?� during 2 h (heating rate 5 ?�/min). Precursor of amorphous alumina was the product of aluminum isopropoxide hydrolysis by water vapor and included >90 wt% of amorphous hydroxide. Polyaluminoxanes, stabilized in aluminum monohydroxide (boehmite), and amorphous aluminum hydroxide were formed during hydrolysis of aluminum alkoxides. Amorphous aluminum hydroxide was transformed into amorphous alumina after heat treatment at T <550 ?�, aluminoxanes and boehmite were converted analogously to γ-Al2O3	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	amorphous alumina	ru_RU
dc.subject	hydrothermal conditions	ru_RU
dc.title	Influence of hydrothermal conditions on the phase transformations of amorphous alumina	ru_RU
dc.type	Articles in international journals and collections	ru_RU