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Journal of Sol-Gel Science and Technology
Published in: Journal of Sol-Gel Science and Technology 2/2018

11-04-2018 | Original Paper: Nano- and macroporous materials (aerogels, xerogels, cryogels, etc.)

Luminescent alumina-based aerogels modified with tris(8-hydroxyquinolinato)aluminum

Authors: Kh. E. Yorov, A. D. Yapryntsev, A. E. Baranchikov, T. V. Khamova, E. A. Straumal, S. A. Lermontov, V. K. Ivanov

Published in: Journal of Sol-Gel Science and Technology | Issue 2/2018

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Abstract

A facile procedure was developed for the production of Al2O3 aerogels modified with tris(8-hydroxyquinolinato)aluminum complex (AlQ3). The addition of 8-hydroxyquinoline during the stage of alumina lyogel formation was found to increase gelation duration. The translucent monolithic aerogels were obtained by supercritical drying of lyogels in CO2. The composition and properties of aerogels were analyzed using low-temperature nitrogen adsorption, helium pycnometry, IR spectroscopy, UV–visible spectroscopy, luminescence spectroscopy, powder X-ray diffraction, scanning and transmission electron microscopy, and thermogravimetry combined with mass spectrometry. The obtained aerogels had low density (0.15–0.18 g cm−3), high specific surface area (480–550 m2/g), high porosity (90–95%), and showed bright luminescence upon excitation in the UV range.
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Appendix
Available only for authorised users
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Metadata
Title
Luminescent alumina-based aerogels modified with tris(8-hydroxyquinolinato)aluminum
Authors
Kh. E. Yorov
A. D. Yapryntsev
A. E. Baranchikov
T. V. Khamova
E. A. Straumal
S. A. Lermontov
V. K. Ivanov
Publication date
11-04-2018
Publisher
Springer US
Published in
Journal of Sol-Gel Science and Technology / Issue 2/2018
Print ISSN: 0928-0707
Electronic ISSN: 1573-4846
DOI
https://doi.org/10.1007/s10971-018-4647-5

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