Reexamination of the System TiO<sub>2</sub>‐SnO<sub>2</sub>

Garcia, Denis da Silva; Speidel, D. H.

doi:10.1111/j.1151-2916.1972.tb11295.x

Cited by 26 publications

(17 citation statements)

References 5 publications

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“…Thus, the solubility of TiO 2 into porous SnO 2 at 800 • C is estimated to be less than 2 mol% from this observation and SnO 2 and TiO 2 forms a mixture. This small solubility coincides with another phase diagram for SnO 2 -TiO 2 shown by Garcia and Speidel [13] which shows very limited solubility of TiO 2 in SnO 2 .…”

Section: Methodssupporting

confidence: 52%

Selective Gas Detection of SnO2-TiO2 Gas Sensors

Moon

Choi

2004

J Electroceram

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The composite, consisting of two materials with different sensing temperatures, may show the selectivity for a particular gas. In this study, the microstructural and compositional effects on the electrical conductivity and the CO and the H 2 gas sensing properties of SnO 2 -TiO 2 composites were examined. SnO 2 -TiO 2 composites in entire (0-100 mol%) composition range were fabricated in the form of porous pellet by sintering at 800 • C for 3 h. The effects of CuO-coating (or doping) on the electrical conductivity and the sensing properties to 200 ppm CO and H 2 gases were examined.With CuO-coating, SnO 2 -TiO 2 composites showed the increased sensitivity to CO gas and a large difference in the sensing temperatures between CO and H 2 gases. As a result, CuO-coated SnO 2 -TiO 2 composites showed the selectivity for CO gas between 100 • C and 190 • C and the selectivity for H 2 gas between 280 • C and 380 • C.

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Section: Methodssupporting

confidence: 52%

Selective Gas Detection of SnO2-TiO2 Gas Sensors

Moon

Choi

2004

J Electroceram

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“…There exists a miscibility gap in the TiO 2 -SnO 2 binary system [12][13][14][15][16][17][18]. This gap varies with experiment conditions and transform to a continuous solid solution with rutile structure above 1430 • C [15] or 1550 • C [18].…”

Section: Introductionmentioning

confidence: 93%

Subsolidus phase relations in the ternary system SnO2–TiO2–Y2O3

Sun

Liu

Liang

et al. 2008

Journal of Alloys and Compounds

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“…44 Å 3 . In the TiO 2 -SnO 2 system, although some authors assume that the lattice parameters follow Vegard's law (25,49), Park et al (26) report a positive deviation from that law. According to these authors, both the magnitude and the sign of the deviation can be predicted using a theory based on nonlinear second-order elasticity which takes into account the difference in ionic radii between Ti and Sn.…”

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confidence: 95%