Peering into the mechanism of low-temperature synthesis of bronze-type TiO2 in ionic liquids

Pascal Voepel; Christoph Seitz; Jan M. Waack; Stefan Zahn; Thomas Leichtweiß; Aleksandr Zaichenko; Doreen Mollenhauer; Heinz Amenitsch; Markus Voggenreiter; Sebastian Polarz; Bernd M. Smarsly

doi:10.1021/acs.cgd.7b01231

Peering into the mechanism of low-temperature synthesis of bronze-type TiO₂ in ionic liquids

Pascal Voepel, Christoph Seitz, Jan M. Waack, Stefan Zahn, Thomas Leichtweiß, Aleksandr Zaichenko, Doreen Mollenhauer, Heinz Amenitsch, Markus Voggenreiter, Sebastian Polarz, Bernd M. Smarsly^*

^*Corresponding author for this work

Graz University of Technology (90000)

Research output: Contribution to journal › Article › peer-review

Abstract

In this work, we present detailed investigations on the influence of binary ionic liquid (IL) mixtures on sol-gel syntheses of metastable metal oxide phases. The synthesis of the metastable TiO₂ bronze phase and anatase as well as the rutile modification is followed via in situ diffraction methods coupled with thermal gravimetric analysis. The variation of the composition of mixtures of ILs allows for the adjustment of TiO₂ phase composition at low temperatures. On the basis of these results, the synthesis of the hexagonal tungsten bronze-like titanium hydroxyl oxy fluoride was achieved. Our results pave the way for a deeper understanding of IL participation in the syntheses of inorganic nanomaterials, going further than treating them as solvents.

Original language	English
Pages (from-to)	5586-5601
Number of pages	16
Journal	Crystal Growth & Design
Volume	17
Issue number	10
DOIs	https://doi.org/10.1021/acs.cgd.7b01231
Publication status	Published - 1 Jan 2017

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

Fields of Expertise

Advanced Materials Science

Access to Document

10.1021/acs.cgd.7b01231

Cite this

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title = "Peering into the mechanism of low-temperature synthesis of bronze-type TiO2 in ionic liquids",

abstract = "In this work, we present detailed investigations on the influence of binary ionic liquid (IL) mixtures on sol-gel syntheses of metastable metal oxide phases. The synthesis of the metastable TiO2 bronze phase and anatase as well as the rutile modification is followed via in situ diffraction methods coupled with thermal gravimetric analysis. The variation of the composition of mixtures of ILs allows for the adjustment of TiO2 phase composition at low temperatures. On the basis of these results, the synthesis of the hexagonal tungsten bronze-like titanium hydroxyl oxy fluoride was achieved. Our results pave the way for a deeper understanding of IL participation in the syntheses of inorganic nanomaterials, going further than treating them as solvents.",

author = "Pascal Voepel and Christoph Seitz and Waack, {Jan M.} and Stefan Zahn and Thomas Leichtwei{\ss} and Aleksandr Zaichenko and Doreen Mollenhauer and Heinz Amenitsch and Markus Voggenreiter and Sebastian Polarz and Smarsly, {Bernd M.}",

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T1 - Peering into the mechanism of low-temperature synthesis of bronze-type TiO2 in ionic liquids

AU - Voepel, Pascal

AU - Seitz, Christoph

AU - Waack, Jan M.

AU - Zahn, Stefan

AU - Leichtweiß, Thomas

AU - Zaichenko, Aleksandr

AU - Mollenhauer, Doreen

AU - Amenitsch, Heinz

AU - Voggenreiter, Markus

AU - Polarz, Sebastian

AU - Smarsly, Bernd M.

PY - 2017/1/1

Y1 - 2017/1/1

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AB - In this work, we present detailed investigations on the influence of binary ionic liquid (IL) mixtures on sol-gel syntheses of metastable metal oxide phases. The synthesis of the metastable TiO2 bronze phase and anatase as well as the rutile modification is followed via in situ diffraction methods coupled with thermal gravimetric analysis. The variation of the composition of mixtures of ILs allows for the adjustment of TiO2 phase composition at low temperatures. On the basis of these results, the synthesis of the hexagonal tungsten bronze-like titanium hydroxyl oxy fluoride was achieved. Our results pave the way for a deeper understanding of IL participation in the syntheses of inorganic nanomaterials, going further than treating them as solvents.

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