Sol-gel Synthesis and Characterization of ZrO2-SiO2 Mixed Oxides

• Autorzy: Viter V. N.
• Języki publikacji: EN

Abstrakty

EN

A simple and convenient sol-gel method for preparation of ZrO2-SiO2 mixed oxides (10–60 mol. % zirconia) has been developed. Tetraethylorthosilicate and zirconium oxychloride were used as starting materials. The obtained mixed oxides have specific surface ar eas of 140–630 m2/g. High de grees of xerogels ho mo ge ne ity were con firmed by XRD, and FT-IR methods as well as surface acidity studies. The strength of acid sites corresponds to an H0 value between –8.2 and –10.10. The sample with 33 mol. per cent ZrO2 showed the maximum acidity. .

Słowa kluczowe

EN

SiO2-ZrO2 mixed oxides; sol-gel synthesis; solid acid; porous materials

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2009
• Tom: Vol. 83, nr 9
• Strony: 1515--1522
• Opis fizyczny: Bibliogr. 20 poz., rys.

Twórcy

autor

Viter V. N.

• Institute for Sorption and Endoecology Problems, National Academy of Sciences of Ukraine, 13, General Naumov str., 03164 Kyiv, Ukraine,

Bibliografia

• 1. Gomez Sainero L.M., Damyanova S. and Fierro J.L.G., Appl. Catal. A: General, 208, 63 (2001).
• 2. Gao Ch.-G., Zhao Y.-X., Zhang Y. and Liu D.-Sh., J. Sol-Gel Sci. Technol., 44, 145 (2007).
• 3. Damyanova S., Petrov L., Centeno M.A. and Grange P., Appl. Catal. A: General, 224, 271 (2002).
• 4. Zhuang Qu. and Miller J.M., Appl. Catal. A: General, 209, LI (2001).
• 5. Navio J.A., Marchena F.J., Macias M., Colon G., Aviles M.A. and Sanchez-Soto P.J., J. Sol-Gel Sci. Technol., 10, 165 (1997).
• 6. Ge J., Shi X., Li Y. and Chen L., Chromatography, 63, 25 (2006).
• 7. Lopez T., Navarrete J., Gomez R., Novaro O., Figueras F. and Armendariz H., Appl. Catal. A: General, 125, 217 (1995).
• 8. BenitezV.M., VeraC.R., PieckC.L.,LacamoireF.G., Yori J.C., Grau J.M. andParera J.M., Catal. Today, 107-108, 651 (2005).
• 9. Bosman H.J.M., Kruissink E.C., Vanderspoel J. and Vandenbrink F., J. Catal., 148, 660 (1994).
• 10. Wu Zh.-G., Zhao Y.-X. and Liu D.-Sh., Microp. Mesop. Mater., 68, 127 (2004).
• 11. Flego C, Carluccio L., Rizzo C. and Perego C, Catal. Comm., 2, 43 (2001).
• 12. Sana S.K. and Pramanik P., J. Mater. Sci., 30,2855 (1995).
• 13. Barreca D., Copley M.P., Graham A.E., Holmes J.D., Morris M.A., Seraglia R., Spalding T.R and Tondello E., Appl. Catal. A: General, 304, 14 (2006).
• 14. Infantes-Molina A., Merida-Robles J., Maireles-Torres P., Finocchio E., Busca G., Rodriguez-Castellon E., Fierro J.L.G. and Jimenez-L6pez A., Microp. Mesop. Mater., 75, 23 (2004).
• 15. KuStrowski P., ChmielarzL., BozekE., SawalhaM. and RoessnerF., Mater. Res. Bull., 39,263 (2004).
• 16. Zhan Z. and Zeng H.G., J. Non-Cryst. Solids, 243, 26 (1999).
• 17. Jiao J., Altwasser S., Wang W., Weitkamp J. and Hunger M., J. Phys. Chem. B, 108, 14305 (2004).