Preparation of nanocrystalline titania powder via aerosol pyrolysis of titanium tetrabutoxide

Petri Ahonen, Esko Kauppinen, Joubert Jean-Claude, Jean-Luc Deschanvres, Gustaaf Van Tendeloo

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

Nanocrystalline titanium dioxide was prepared via aerosol pyrolysis of titanium alkoxide precursor at 200–580 °C in air and in nitrogen atmospheres. Powders were characterized by x-ray diffraction, thermogravimetric analysis, Brunauer–Emmett–Teller analysis, scanning electron microscopy, transmission electron microscopy, energy dispersive spectroscopy, x-ray fluorescence, Raman and infrared spectroscopy, and Berner-type low-pressure impactor. The anatase phase transition was initiated at 500 °C in nitrogen and at 580 °C in air. Under other conditions amorphous powders were observed and transformed to nanocrystalline TiO2 via thermal postannealing. In air, smooth and spherical particles with 2–4-μm diameter were formed with an as-expected tendency to convert to rutile in the thermal postannealings. In nitrogen, a fraction of the titanium tetrabutoxide precursor evaporated and formed ultrafine particles via the gas-to-particle conversion. At 500 °C thermally stable anatase phase was formed in nitrogen. A specific surface area as high as 280 m2 g−1 was observed for an as-prepared powder.
Original languageEnglish
Pages (from-to)3938-3948
Number of pages11
JournalJournal of Materials Research
Volume14
Issue number10
DOIs
Publication statusPublished - 1999
MoE publication typeA1 Journal article-refereed

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Aerosols
Powders
pyrolysis
aerosols
Pyrolysis
Nitrogen
titanium
Titanium
Titanium dioxide
nitrogen
preparation
anatase
air
Air
X rays
x ray fluorescence
impactors
Fluorescence spectroscopy
alkoxides
titanium oxides

Cite this

Ahonen, P., Kauppinen, E., Jean-Claude, J., Deschanvres, J-L., & Van Tendeloo, G. (1999). Preparation of nanocrystalline titania powder via aerosol pyrolysis of titanium tetrabutoxide. Journal of Materials Research, 14(10), 3938-3948. https://doi.org/10.1557/JMR.1999.053
Ahonen, Petri ; Kauppinen, Esko ; Jean-Claude, Joubert ; Deschanvres, Jean-Luc ; Van Tendeloo, Gustaaf. / Preparation of nanocrystalline titania powder via aerosol pyrolysis of titanium tetrabutoxide. In: Journal of Materials Research. 1999 ; Vol. 14, No. 10. pp. 3938-3948.
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abstract = "Nanocrystalline titanium dioxide was prepared via aerosol pyrolysis of titanium alkoxide precursor at 200–580 °C in air and in nitrogen atmospheres. Powders were characterized by x-ray diffraction, thermogravimetric analysis, Brunauer–Emmett–Teller analysis, scanning electron microscopy, transmission electron microscopy, energy dispersive spectroscopy, x-ray fluorescence, Raman and infrared spectroscopy, and Berner-type low-pressure impactor. The anatase phase transition was initiated at 500 °C in nitrogen and at 580 °C in air. Under other conditions amorphous powders were observed and transformed to nanocrystalline TiO2 via thermal postannealing. In air, smooth and spherical particles with 2–4-μm diameter were formed with an as-expected tendency to convert to rutile in the thermal postannealings. In nitrogen, a fraction of the titanium tetrabutoxide precursor evaporated and formed ultrafine particles via the gas-to-particle conversion. At 500 °C thermally stable anatase phase was formed in nitrogen. A specific surface area as high as 280 m2 g−1 was observed for an as-prepared powder.",
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Ahonen, P, Kauppinen, E, Jean-Claude, J, Deschanvres, J-L & Van Tendeloo, G 1999, 'Preparation of nanocrystalline titania powder via aerosol pyrolysis of titanium tetrabutoxide', Journal of Materials Research, vol. 14, no. 10, pp. 3938-3948. https://doi.org/10.1557/JMR.1999.053

Preparation of nanocrystalline titania powder via aerosol pyrolysis of titanium tetrabutoxide. / Ahonen, Petri; Kauppinen, Esko; Jean-Claude, Joubert; Deschanvres, Jean-Luc; Van Tendeloo, Gustaaf.

In: Journal of Materials Research, Vol. 14, No. 10, 1999, p. 3938-3948.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Van Tendeloo, Gustaaf

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AB - Nanocrystalline titanium dioxide was prepared via aerosol pyrolysis of titanium alkoxide precursor at 200–580 °C in air and in nitrogen atmospheres. Powders were characterized by x-ray diffraction, thermogravimetric analysis, Brunauer–Emmett–Teller analysis, scanning electron microscopy, transmission electron microscopy, energy dispersive spectroscopy, x-ray fluorescence, Raman and infrared spectroscopy, and Berner-type low-pressure impactor. The anatase phase transition was initiated at 500 °C in nitrogen and at 580 °C in air. Under other conditions amorphous powders were observed and transformed to nanocrystalline TiO2 via thermal postannealing. In air, smooth and spherical particles with 2–4-μm diameter were formed with an as-expected tendency to convert to rutile in the thermal postannealings. In nitrogen, a fraction of the titanium tetrabutoxide precursor evaporated and formed ultrafine particles via the gas-to-particle conversion. At 500 °C thermally stable anatase phase was formed in nitrogen. A specific surface area as high as 280 m2 g−1 was observed for an as-prepared powder.

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