Investigation of Grinding Effects in Binary Mixtures from the TiO2–SnO2–V2O5System

Caër, G. Le; Mocellin, A.; Jurenka, C.; Zandona, M.

doi:10.1006/jssc.1996.0362

Cited by 10 publications

(6 citation statements)

References 19 publications

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“…Therefore, some deviation from Vegard's law is found. Hirata et al [18] and Park et al [19], in contrast with the interpretation done by some authors [11,15], also reported positive deviations from Vegard's law in the Sn x Ti 1−x O 2 system, that is, the lattice parameters are greater than those obtained just from a linear interpolation from the endpoint binary oxides TiO 2 and SnO 2 . Thus, our results indicate that the deviation from Vegard's law in the Sn x Ti 1−x O 2 solid solution is not a consequence of the spinodal decomposition.…”

Section: Structural Propertiesmentioning

confidence: 82%

“…The knowledge of the bulk electronic structure of this mixed oxide would aid in the design of gas sensing devices and catalysts exhibiting unique features. Therefore, the structural and electronic properties of Sn x Ti 1−x O 2 solid solutions have been subjected to extensive experimental [1,[3][4][5][6]8,[12][13][14][15][16][17][18][19] and recent theoretical [20] studies. A detailed understanding of the electronic structure of Sn x Ti 1−x O 2 solid solution, however, lags behind these achievements.…”

Section: Introductionmentioning

confidence: 99%

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Electronic and structural properties of SnxTi1−xO2 solid solutions: a periodic DFT study

et al. 2003

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The structural and electronic properties of selected compositions of Sn x Ti 1−x O 2 solid solutions (x = 0, 1/24, 1/16, 1/12, 1/8, 1/6, 1/4, 1/2, 3/4, 5/6, 7/8, 11/12, 15/16, 23/24 and 1) were investigated by means of periodic density functional theory (DFT) calculations at B3LYP level. The calculations show that the corresponding lattice parameters vary non-linearly with composition, supporting positive deviations from Vegard's law in the Sn x Ti 1−x O 2 system. Our results also account for the fact that chemical decomposition in Sn x Ti 1−x O 2 system is dominated by composition fluctuations along [0 0 1] direction. A nearly continuous evolution of the direct band gap and the Fermi level with the growing value of x is predicted. Ti 3d states dominate the lower portion of the conduction band of Sn x Ti 1−x O 2 solid solutions. Sn substitution for Ti in TiO 2 increases the oxidation-reduction potential of the oxide as well as it renders the lowest energy transition to be indirect. These two effects can be the key factors controlling the rate for the photogenerated electron-hole recombination. These theoretical results are capable to explain the enhancement of photoactivity in Sn x Ti 1−x O 2 solid solutions.

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Section: Structural Propertiesmentioning

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Electronic and structural properties of SnxTi1−xO2 solid solutions: a periodic DFT study

et al. 2003

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“…A similar phenomenon was observed in the case of pure iron after mechanical grinding, and in that work the contribution of the second component was explained by the environment of the iron atoms at interfaces 27 . The grinding effect was also studied on tin dioxide and revealed its reduction due to the mechanical action 28 . Similarly the broad second component is interpreted here as due to surface effects, and will not be considered further in the discussion below.…”

Section: Resultsmentioning

confidence: 96%

Correlation of Structure and Photoelastic Response in Tin Phosphate Glass

Martin

Werner‐Zwanziger

Zwanziger

et al. 2011

Int J of Appl Glass Sci

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Recently an empirical model was established to predict the photoelastic response of a glass based on its composition and the crystalline structure of its constituents. In the present work the model was tested in detail by comparing the local structure assessed by a combination of nuclear magnetic resonance and Mössbauer spectroscopy with the model predictions and the measured photoelastic response. The system investigated was (SnO) x (P 2 O 5 ) 1Àx . It was found that while the original simple model based on data on the pure components predicted the composition of the zero stress-optic glass to within about 15 mol%, inclusion of data on mixed systems, more reflective of the true glass structure, gave substantial improvement of the prediction. This finding further confirms the relation of local bonding structure to the photoelastic response of glass.

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“…31,32 A type (3) defect model with a consequent weight loss 19,33 is unlikely under such conditions. We also did not observe any considerable weight loss during annealing.…”

Section: Influence Of Temperature and V 2 O 5 Content On Anatase-rutimentioning

confidence: 97%

Anatase–rutile transformation in TiO2–V2O5 catalyst coatings for ceramic foams

Bucharsky

Schell

Oberacker

et al. 2009

Journal of the European Ceramic Society

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Investigation of Grinding Effects in Binary Mixtures from the TiO2–SnO2–V2O5System

Cited by 10 publications

References 19 publications

Electronic and structural properties of SnxTi1−xO2 solid solutions: a periodic DFT study

Electronic and structural properties of SnxTi1−xO2 solid solutions: a periodic DFT study

Correlation of Structure and Photoelastic Response in Tin Phosphate Glass

Anatase–rutile transformation in TiO2–V2O5 catalyst coatings for ceramic foams

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