Actions for Atomic insights into nanoparticle formation of hydroxyfluorinated anatase featuring titanium vacancies [electronic resource].

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Atomic insights into nanoparticle formation of hydroxyfluorinated anatase featuring titanium vacancies [electronic resource].

Published
Argonne, Ill. : Argonne National Laboratory, 2016.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Physical Description
pages 7,182-7,187 : digital, PDF file
Additional Creators
Argonne National Laboratory, United States. Department of Energy. Office of Basic Energy Sciences, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Anatase TiO2 with exposed highly reactive (001) surface is commonly prepared using solution-based synthesis in the presence of a fluorinating agent acting as a structure directing agent. Here, the solvothermal reaction of titanium tetraisopropoxide in the presence of aqueous HF has resulted in the stabilization of an oxyhydroxyfluorinated anatase phase featuring cationic vacancies. In the present work, we have studied its formation mechanism, revealing a solid-state transformation of a highly defective anatase phase having a hydroxyfluoride composition that subsequently evolves through an oxolation reaction into an oxyhydroxyfluoride phase. Importantly, this work confirms that titanium alkoxide precursors can react with HF via a fluorolysis process yielding fluorinated molecular precursors, which further condense to produce new composition and structural features deviating from a well ordered anatase network.
Report Numbers
E 1.99:1339461
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Note
Published through SciTech Connect.
06/28/2016.
"132764"
Inorganic Chemistry 55 14 ISSN 0020-1669 AM
Wei Li; Monique Body; Christophe Legein; Olaf J. Borkiewicz; Damien Dambournet.
European Commission - Community Research and Development Information Service (CORDIS) - Seventh Framework Programme (FP7)
Funding Information
AC02-06CH11357
View MARC record | catkey: 24045514