Contribution of Chemical Methods to the Study of Nanostructure of Ultrafine and Amorphous Materials

Inga Vasilyeva; Vladimir Logvinenko

doi:10.4028/www.scientific.net/SSP.257.237

Paper Titles

Magnetic Instabilities in Non-Fermi Liquid Ce₃Pd₄Si₄ Driven by Magnetic Dilution
p.195

Evolution of Ce-Valence in Ce-Rh-Si Compounds: Intermediate Valence in CeRh₆Si₄
p.199

Phonon Anharmonicity and Thermodynamic Properties of Strongly Correlated Iron Monosilicide
p.203

First Principles Study of the Structural, Electronic, and Magnetic Properties of ZrC
p.211

Partial Oxidation in a Dense Phase Sub-Monolayer of Fe-Phthalocyanine on Ag(110)
p.219

Magnetic Interaction between d¹ [MOR₄]⁻ Units of Molybdenum and Tungsten
p.223

Synthesis, Structure and Some Catalytic Properties of the New Trinuclear Rhenium Cluster Compound Re₃Se₃S₄Br₁₃
p.227

Effect of Annealing Process on Natural Zeolites from Volcanic Ash for Environmental Applications: Structural and Morphological Characterizations
p.233

Contribution of Chemical Methods to the Study of Nanostructure of Ultrafine and Amorphous Materials
p.237

HomeSolid State PhenomenaSolid State Phenomena Vol. 257Contribution of Chemical Methods to the Study of...

Contribution of Chemical Methods to the Study of Nanostructure of Ultrafine and Amorphous Materials

Abstract:

Controlling the hydrolysis conditions of the solution TiOSO₄•xH₂SO₄•yH₂O, the h-TiO₂ and A-TiO₂single phases were prepared in amorphous/crystalline state. With scanty structural and electron microscopy data, the unique capability of differential dissolution method was used to perform quantitative phase analysis of the samples and identify phases where two from them (TiO)(HSO₄)_0.4(OH)and TiO(OH)₂were found to be amorphous. New results were obtained that the amorphous TiO(OH)₂ is transformed to ~ 5-nm crystallites TiO_2-x•0.95H₂O which then turned into ~ 3-nm crystallites TiO₂•0.25H₂O when drying the gels at 90°C. New structural models for the crystallites were proposed explaining differences in their chemical and thermal characteristics.

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Periodical:

Solid State Phenomena (Volume 257)

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237-240

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.257.237

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Online since:

October 2016

Authors:

Inga Vasilyeva*, Vladimir Logvinenko

Keywords:

Chemical Variety, Structural Variety, TiO₂, η-Nanoparticles

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References

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