Abstract
The preparation and physicochemical characterization (specific surface area, X-ray diffraction, electronic spectra, and magnetic properties) of oxide Mn-TiO2 and Co-TiO2 (1–5% atomic ratio Mn/Ti or Co/Ti) systems are described. The samples were obtained from commercial TiO2 and soluble manganese and cobalt salts, after treatment in an oxidizing atmosphere at 770 K. While the Mn-TiO2 samples show a good dispersion of the supported phase irrespective of the manganese content, increasing amounts of cobalt content lead to formation of Co3O4.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
J. F. Houliman, D. B. Armitage, T. Hoovler andD. Bonaquist,Mater. Res. Bull. 13 (1978) 1205.
H. Maruska andA. K. Ghosh,Sol. Energy Mater. 1 (1979) 237.
Y. Matsumoto, J. Kurimoto, T. Shimizu andE. Sato,J. Electrochem. Soc. 128 (1981) 1040.
E. Borgarello, J. Kiwi, M. Gratzel, E. Pelizzetti andM. Visca,J. Amer. Chem. Soc. 104 (1982) 2996.
G. C. Bond andR. Burch, in “Catalysis”, Vol. 6, Specialist Periodical Reports, edited by G. C. Bond and G. Webb (The Royal Society of Chemistry, London 1983) Chap. 2, pp. 27–60.
J. Criado andC. Real,J. Chem. Soc., Faraday I 79 (1983) 2765.
R. D. W. Kemmitt, in “Comprehensive Inorganic Chemistry”, Vol. 3, edited by J. C. Bailar, Jr., H. J. Emeleus, R. Nyholm and A. F. Trotman-Dickenson (Pergamon Press, Oxford, 1973) p. 800.
M. Valigi andA. Cimino,J. Solid State Chem. 12 (1975) 135.
T. M. Dunn, D. S. McClure andR. G. Pearson, “Some Aspects of Crystal Field Theory” (Harper and Row, New York, 1965) p. 82.
G. Blasse,J. Inorg. Nucl. Chem. 29 (1967) 1817.
A. Mackor andG. Blasse,Chem. Phys. Lett. 77 (1981) 6.
G. Blasse, P. H. M. De Korte andA. Mackor,J. Inorg. Nucl. Chem. 43 (1981) 1499.
J. J. Criado, B. Macias andV. Rives,React. Kinet. Catal. Lett. in press.
P. W. Selwood, “Magnetochemistry” 2nd Edn (Interscience, London, 1956) p. 45.
F. E. Mabbs andD. J. Machin, “Magnetism and Transition Metal Complexes” (Chapman and Hall, London, 1973) pp. 22, 30.
C. K. Jørgensen, “Oxidation Numbers and Oxidation States” (Springer, New York, 1969) pp. 84–5.
B. N. Figgis andJ. Lewis, in “Progress in Inorganic Chemistry”, Vol. 6, edited by F. A. Cotton, (1964) p. 37.
J. H. Ashley andP. C. H. Mitchell,J. Chem. Soc. (A) (1968) 2821.
G. N. Asmolov andO. V. Krylov,Kinet. Katal. 12 (1971) 463.
E. I. El'bert andB. G. Tryasunov,ibid. 16 (1975) 552.
M. Lo Jacono, A. Cimino andG. C. A. Schuit,Gazz. Chim. Ital. 103 (1973) 1281.
F. J. Gillambias, A. Lopez Agudo andV. Rives-Arnau,J. Mater. Sci. 17 (1982) 936.
M. Lo Jacono, M. Schiavello, V. H. J. De Beer andG. Minelli,J. Phys. Chem. 81 (1977) 1583.
F. E. Mabbs andD. J. Machin, “Magnetism and Transition Metal Complexes” (Chapman and Hall, London 1973) p. 95.
E. K. Barefield, D. H. Busch andS. M. Nelson,Q. Rev. Chem. Soc. 22 (1968) 457.
P. Cossee,Rec. Trav. Chim. 75 (1956) 1089.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Criado, J.J., Macias, B., Martin, C. et al. Physicochemical characterization of oxide Co-TiO2 and Mn-TiO2 systems. J Mater Sci 20, 1427–1433 (1985). https://doi.org/10.1007/BF01026340
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF01026340