Preparation of nanodispersed titania using stabilized ammonium nitrate melts
KAUST Grant NumberUK-C0017
Permanent link to this recordhttp://hdl.handle.net/10754/599393
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AbstractAn expedite one-step approach using simple precursors has been proposed to obtain metallic oxide compounds and exemplified by preparation of highly dispersed TiO2. The technique consists in heating to 400500 °C of molten ammonium nitrate stabilized with an organic nitrogen-containing compound (urea, melamine, ammonium oxalate) and containing dissolved metal salt precursor (TiOCl2). The crystallites of the resulting TiO2 demonstrated variable size and shape as a function of stabilizer used. Their activity in photocatalytic oxidation of formic acid also depends on the nature of the stabilizer. The catalysts as-prepared showed high photocatalytic performance, superior to that of the Degussa P25 reference. Nitrogen containing stabilizers play a double role of increasing the process safety and modifying the properties of the solid products. © 2010 Elsevier Inc. All rights reserved.
CitationRaciulete M, Kachina A, Puzenat E, Afanasiev P (2010) Preparation of nanodispersed titania using stabilized ammonium nitrate melts. Journal of Solid State Chemistry 183: 2438–2444. Available: http://dx.doi.org/10.1016/j.jssc.2010.07.049.
SponsorsAnna Kachina expresses her gratitude to King Abdullah University of Science and Technology (award no. UK-C0017).
JournalJournal of Solid State Chemistry