Oxygen detection using yttria-stabilized zirconia thin films doped with platinum

• Authors: Dimitre Dimitrov , Ceco Dushkin
• Languages of publication: EN

Abstracts

EN

Yttria stabilized zirconia (YSZ) thin films are obtained using both spray-pyrolysis and dip-coating. The ability of YSZ films incorporated with platinum nanospecies (Pt-YSZ) to detect oxygen is compared with that of pure YSZ thin films using a new experimental setup. With this system, the surface electrical resistance of the films as a function the oxygen content is measured at a fixed temperature. In addition, the effects of thermal annealing on the oxygen sensitivity of the films are observed. Platinum doped samples, Pt-YSZ, show different kinetics of carrier diffusion as compared to pure YSZ samples.

Keywords

EN

Yttria stabilized zirconia (YSZ); YSZ thin films; platinum doped YSZ (Pt-YSZ); oxygen detection

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2005
• Volume: 3
• Issue: 4
• Pages: 605-621

Dates

published

1 - 12 - 2005

online

1 - 12 - 2005

Contributors

author

Dimitre Dimitrov

• Department of General and Inorganic Chemistry, Faculty of Chemistry, University of Sofia, 1 James Bourchier Blvd., 1164, Sofia, Bulgaria

author

Ceco Dushkin

• Department of General and Inorganic Chemistry, Faculty of Chemistry, University of Sofia, 1 James Bourchier Blvd., 1164, Sofia, Bulgaria

References

• [1] S.J. Skinner and J.A. Kilner: “Oxygen ion conductors”, Materialstoday, Vol. 3, (2003), pp. 30–37.
• [2] J.A. Kilner: “Fast oxygen transport in acceptor doped oxides”, Solid State Ionics, Vol. 129, (2000), pp. 3–23. http://dx.doi.org/10.1016/S0167-2738(99)00313-6[Crossref]
• [3] P. Kofstad: Nonstoichiometry, Diffusion and Electrical Conductivity in Binary Metal Oxides, Wiley-Interscience, New York, 1972.
• [4] A. Dawson and P.V. Kamat: “Semiconductor-metal nanocomposites. Photoinduced fusion and photocatalysis of Gold-Capped TiO2 (TiO2/gold) nanoparticles”, J. Phys. Chem. B, Vol. 105, (2001), pp. 960–966. http://dx.doi.org/10.1021/jp0033263[Crossref]
• [5] M.G.H.M. Hendriks, B.A. Boukamp, J.E. ten Elshof, W.E. van Zyl and H. Verweij: “The electrical behaviour of platinum impregnated porous YSZ”, Solid State Ionics, Vol. 146, (2002), pp. 123–132. http://dx.doi.org/10.1016/S0167-2738(01)01001-3[Crossref]
• [6] Z. Peng, M. Liu and Ed. Balko: “A new type of amperometric oxygen sensor based on a mixed-conducting composite membrane”, Sensor Actuators B, Vol. 72, (2001), pp. 35–40. http://dx.doi.org/10.1016/S0925-4005(00)00629-8[Crossref]
• [7] R. Todorovska, N. Petrova and D. Todorovsky: “Spray pyrolysis deposition of YSZ and YSZ-Pt composite films”, Appl. Surface Sci., submitted.
• [8] C. Dushkin, S. Stoianov, A. Bojinova and S. Russev: “Dip coating apparatus for deposition of TiO2 films”, Ann. Univ. Sofia Fac. Chim., submitted.
• [9] A.I. Buturlin, T.A. Gabyzian, N.A. Golovanov, I.V. Baranenkov, A.V. Evdokimov, M.N. Murshudli, V.G. Fadin and Yu.D. Shistiakov: “Gas sensitive sensors based on metal oxides semiconductors”, Rev. Foreign Electronic Ind., Vol. 10, (1983), pp. 3–39 (Journal of the Ministry of Electronic Industry of USSR, in Russian).
• [10] R.V. Todorovska, St. Grodeva-Zotova and D.S. Todorovsky: “Spray pyrolysis deposition of α Fe2O3 thin films using iron (III) citric complexes”, Mater. Lett., Vol. 56, (2002), pp. 770–774. http://dx.doi.org/10.1016/S0167-577X(02)00611-0[Crossref]
• [11] N. Petrova, R. Todorovska, D. Todorovsky and D. Shopova: “Yttrium-zirconium citric complexes as starting material for preparation of YSZ powders and layers”, Key Eng. Mater., Vol. 264–268, (2004), pp. 427–430. http://dx.doi.org/10.4028/www.scientific.net/KEM.264-268.427[Crossref]
• [12] N. Petrova and D. Todorovsky: “Thermal decomposition of zirconium-yttrium citric complexesprepared in ethylene glycol and water media”, Mater. Res. Bull., submitted.
• [13] F.A. Kroöger: The Chemistry of Imperfect Crystals, North-Holland Publ. Co., Amsterdam, 1964.
• [14] L.D. Landau and E.M. Lifshitz: Theoretical Physics, Vol. 5, In: Statistical Physics, part 1, Nauka-Physmathlitr, Moscow, 1995 (in Russian).
• [15] B.F. Ormont: An introduction in chemical physics and crystal chemistry of semiconductors, Visshaya Shkola, Moscow, 1973 (in Russian).

Identifiers

DOI

10.2478/BF02475191