Abstract
The effect of the conditions of thermal treatment on the texture formation in molybdenum–titanium oxide (Mo–Ti–O) and vanadium–molybdenum–titanium oxide (V–Mo–Ti–O) catalysts was studied. It was found that the presence of MoO3 in the Mo–Ti–O catalyst resulted in the stabilization of the surface area of anatase and in the retention of the fine pore structure upon thermal treatment because of the insertion of highly dispersed molybdenum crystallites into the aggregates of anatase crystallites, preventing from their agglomeration over a wide range of temperatures. In the presence of MoO3 and V2O5 in the catalyst, anatase particles underwent agglomeration as the temperature was increased. This resulted in a more drastic decrease in the specific surface area and an increase in the pore size, as compared with binary samples, because of the formation of a thermally labile vanadium–molybdenum compound at the surface of anatase.
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REFERENCES
Nag, N.K., Fransen, T., and Mars, P., J. Catal., 1981, vol. 68, no. 1, p. 77.
Mamoru, Ai., J. Catal., 1978, vol. 54, no. 3, p. 426.
Vanhove, D., Op, S.R., Fernandes, A., and Blaachard, M., J. Catal., 1979, vol. 57, no. 2, p. 253.
Satsuma, A., Okada, F., Yattori, A., Miyamoto, A., Hattori, T., and Mirakami, Y., Appl. Catal., 1991, vol. 72, no. 2, p. 295.
Najbar, M., J. Chem. Soc., Faraday Trans. 1, 1986, vol. 82, no. 10, p. 1673.
Lui, Z.X., Li, Y.Q., Qi, S.X., Xie, K., Wu, N.J., and Bao, Q.X., Appl. Catal., 1989, vol. 56, no. 2, p. 207.
Nikolov, V., Klissurski, D., and Anastasov, A., Catal. Rev.-Sci. Eng., 1991, vol. 33, nos. 3–4, p. 319.
US Patent 14481304, 1984.
Matralis, H.K., Papadoponlou, Ch., Kordulies, Ch., Elguezabel, A.A., and Corberan, V.C., Appl. Catal. A, 1995, vol. 126, no. 2, p. 365.
Orlik, S.N., Ostanyuk, V.A., and Martsenyuk-Kukharuk, M.G., Kinet. Katal., 1995, vol. 36, no. 2, p. 311.
Hilbrid, F., Gobel, H.E., Knozenger, H., Schmelz, H., and Lengeler, B., J. Catal., 1991, vol. 129, no. 1, p. 168.
Busca, G., Lietti, L., Ramis, G., and Derti, F., Appl. Catal. B, 1998, vol. 18, nos. 1–2, p. 1.
Busca, G. and Marchetti, L., J. Chem. Res. Synop., 1986, no. 5, p. 174.
Lange, F.C., Schmelz, H., and Knozenger, H., Appl. Catal. B, 1996, vol. 8, no. 1, p. 245.
Dobrovol'skii, I.P., Khimiya i tekhnologiya oksidnykh soedinenii titana (Chemistry and Technology of Oxide Compounds of Titane), Sverdlovsk: Izd-vo UrO AN SSSR, 1988.
Karnaukhov, A.P., Adsorbtsiya. Tekstura dispersnykh i poristykh materialov (Adsorption: Texture of Dispersed and Porous Materials), Novosibirsk: Nauka, 1999.
Gregg, S.J. and Sing, K.S.W., Adsorption, Surface Areas, and Porosity, New York: Academic, 1982.
Guinier, A., Theorie et Technique de la Radiocristallographie, Paris: Dunot, 1956.
Zenkovets, G.A., Gavrilov, V.Yu., Kryukova, G.N., and Tsybulya, S.V., Kinet. Katal., 1998, vol. 39, no. 1, p. 122.
Gavrilov, V.Yu. and Zenkovets, G.A., Kinet. Katal., 1993, vol. 34, no. 2, p. 357.
German, R.M. and Muniz, Z.A., Sintering and Catalysis, New York, 1975, p. 259.
Perel'man, V.I., Kratkii spravochnik khimika (Abridged Handbook of Chemistry), Moscow: Khimiya, 1964, pp. 80, 96.
Reznitskii, L.A., Zh. Fiz. Khim., 2000, vol. 74, no. 5, p. 823.
Kryukova, G.N., Zenkovets, G.A., and Parmon, V.N., React. Kinet. Catal. Lett., 2000, vol. 71, no. 1, p. 173.
Zenkovets, G.A., Tsybulya, S.V., Burgina, E.B., and Kryukova, G.N., Kinet. Katal., 1999, vol. 40, no. 4, p. 623.
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Zenkovets, G.A., Gavrilov, V.Y., Kryukova, G.N. et al. Effect of the Conditions of Thermal Treatment of Molybdenum–Titanium and Vanadium–Molybdenum–Titanium Oxide Catalysts on Pore Structure Formation. Kinetics and Catalysis 43, 573–579 (2002). https://doi.org/10.1023/A:1019895522569
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DOI: https://doi.org/10.1023/A:1019895522569