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Preparation Of Pt/WO3 Powders and Thin Coatings on Carbon Black and Metal Supports by The Complex Sol-Gel Process (CSGP)

Published online by Cambridge University Press:  10 February 2011

A. Deptula ,
W. Lada ,
T. Olczak ,
B. Sartowska ,
A. Ciancia ,
L. Giorgi  and
A. Di Bartolomeo
A. Deptula
Affiliation:
Institute of Nuclear Chemistry and Technology, ul. Dorodna 16, 03–195 Warsaw, Poland, adept@orange. ichtj. waw. pi
W. Lada
Affiliation:
Institute of Nuclear Chemistry and Technology, ul. Dorodna 16, 03–195 Warsaw, Poland, adept@orange. ichtj. waw. pi
T. Olczak
Affiliation:
Institute of Nuclear Chemistry and Technology, ul. Dorodna 16, 03–195 Warsaw, Poland, adept@orange. ichtj. waw. pi
B. Sartowska
Affiliation:
Institute of Nuclear Chemistry and Technology, ul. Dorodna 16, 03–195 Warsaw, Poland, adept@orange. ichtj. waw. pi
A. Ciancia
Affiliation:
ENEA-CRE-Casaccia, AD 00100 Roma, Italy, giorgil@casaccia.enea.it
L. Giorgi
Affiliation:
ENEA-CRE-Casaccia, AD 00100 Roma, Italy, giorgil@casaccia.enea.it
A. Di Bartolomeo
Affiliation:
ENEA-CRE-Casaccia, AD 00100 Roma, Italy, giorgil@casaccia.enea.it
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Abstract

In this work the CSGP was applied for preparation of Pt-WOx and its coatings on carbon black, silver and titan substrates. Saturated tungsten sol (0.15M) was prepared by dissolving (NH4)4W5O17 2.5 H2O in ascorbic acid solution. To this solution H2PtCl6 was added to obtain the molar ratio Pt:W=l. After evaporation and heating at 700°C for 2h homogeneous yellow-green powders were obtained. Another part of this solution was diluted with ethanol and after ultrasonic mixing used for preparation of coatings on Ag and Ti substrates by the immersion technique. Gel layers were dried at 200°C for 20h and then calcined at 700°C for 2h. The resulting white colored layers (thickness 10–65μm) were very adherent. Ascorbate aqueous tungsten-platinum sol diluted to 0.03 or 0.06 M ΣMe was used for preparation of Pt-W (10 and 20 %) catalyst by impregnation of carbon black Vulcan XC-72, followed by thermal treatment in air, argon and hydrogen atmospheres.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 496: Symposium Y – Materials For Electrochemical Energy Storage & Conversion II… , 1997 , 237
Copyright
Copyright © Materials Research Society 1998

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References

REFERENCES

1. Giorgi, L., Pozio, A., Celle a combustibile ad elettrolita polimerico solido. RT/ERG/95/05, ENEA, Rome, Italy, 1995.Google Scholar
2. Dönitz, W., Gutmann, G., Urban, P., Second International Symposium on New Materials for Fuel Cell and Modem Battery Systems, June29-July3, 1997. Proseedings. New Materials for Fuel Cell and Modem Battery Systems II, Editors, Savadogo, O. and Roberge, P.R., ISBN 2–553–00624–1, Montreal, Canada, 1997, p. 14.Google Scholar
3. Wilkinson, D.P., Steck, A.E., Second International Symposium on New Materials for Fuel Cell and Modem Battery Systems, June29-July3, 1997. Proseedings. New Materials for Fuel Cell and Modem Battery Systems II, Editors, Savadogo, O. and Roberge, P.R., ISBN 2–553–00624–1, Montreal, Canada, 1997, p.27.Google Scholar
Lalande, G., Côte, R., Guay, D., Dodelet, J.P., Second International Symposium on New Materials for Fuel Cell and Modem Battery Systems, June29-July3, 1997. Proseedings. New Materials for Fuel Cell and Modem Battery Systems II, Editors, Savadogo, O. and Roberge, P.R., ISBN 2–553–00624–1, Montreal, Canada, 1997,, p.768 Google Scholar
4. Lamy, C., Leger, J-M., Second International Symposium on New Materials for Fuel Cell and Modem Battery Systems, June29-July3, 1997. Proseedings. New Materials for Fuel Cell and Modem Battery Systems II, Editors, Savadogo, O. and Roberge, P.R., ISBN 2–553–00624–1, Montreal, Canada, 1997, p. 477.Google Scholar
5. Gloaguen, F., Napporn, T., Donon, S., Croissant, M-J., Leger, J-M., Lamy, C., Second International Symposium on New Materials for Fuel Cell and Modem Battery Systems, June29-July3, 1997. Proseedings. New Materials for Fuel Cell and Modem Battery Systems II, Editors, Savadogo, O. and Roberge, P.R., ISBN 2–553–00624–1, Montreal, Canada, 1997, p.510.Google Scholar
6. Fischer, A., Götz, M., Wendt, H., Second International Symposium on New Materials for Fuel Cell and Modem Battery Systems, June29-July3, 1997. Proseedings. New Materials for Fuel Cell and Modem Battery Systems II, Editors, Savadogo, O. and Roberge, P.R., ISBN 2–553–00624–1, Montreal, Canada, 1997, p.489.Google Scholar
7. Borkowska, R., Lipka, R., Przyluski, J., Second International Symposium on New Materials for Fuel Cell and Modem Battery Systems, June29-July3, 1997. Proseedings. New Materials for Fuel Cell and Modem Battery Systems II, Editors, Savadogo, O. and Roberge, P.R., ISBN 2–553–00624–1, Montreal, Canada, 1997, p.778.Google Scholar
8. Uchida, M., Fukuoka, Y., Sugawara, Y., Eda, N., Ohta, A., J. Electrochem. Soc. 143, 2245 (1996).Google Scholar
9. Uchida, M., Aoyama, Y., Tanabe, M., Yanagihara, N., Eda, N., Ohta, A., J. Electrochem. Soc. 142, 2572 (1995).Google Scholar
10. Tamizhmani, G., Capuano, G.A., J. Electrochem. Soc. 141, 968 (1994).10.1149/1.2054866Google Scholar
11. Hamnett, A., Kennedy, B.J., Electrochimica Acta 33, 1613 (1988).Google Scholar
12. Arico, A.S., Poltarzewski, Z., Kim, H., Morana, A., Giordano, N., Antonucci, V., J. Power Sources 55, 159 (1995).Google Scholar
13. Anderson, J.R. Structure of Metallic Catalysts, London, New York, Academic Press 1975 Google Scholar
14. Deptula, H.A., Lada, W., Olczak, T. Lanagan, M., Dorris, S.E., Goretta, K.C., Poeppel, R.B., Method for preparing of high temperature superconductors, Polish Patent No 172618, June 2 1997.Google Scholar
15. Deptula, A., Lada, W., F., , Croce, , Appetecchi, G.B., Ciancia, A., Giorgi, L., Brignocchi, A. and Di Bartolomeo, A.. Synthesis and preliminary electrochemical characterization of LixMn2O4± d) (x=0.55-l.l) powders obtained by the Complex Sol Gel Process (CSGP), Second International Symposium on New Materials for Fuel Cell and Modem Battery Systems, June29–July3, 1997. Proceedings. New Materials for Fuel Cell and Modem Battery Systems II, Editors, Savadogo, O. and Roberge, P.R., ISBN 2–553–00624–1, Montreal, Canada, 1997,p. 732.Google Scholar
16. Deptula, , Lada, W., Olczak, T., LeGeros, R. Z., LeGeros, J. P., Preparation of Calcium Phosphate Coatings by Complex Sol-Gel Process (CSGP), Bioceramics Vol. 9, Pergamon (ISBN 0 08 0426840), Cambridge, 1996, p.313.Google Scholar
17. Shen, P.K., Tseung, A.C.C., J. Electrochem. Soc. 141, 3082 (1994).10.1149/1.2059282Google Scholar