Abstract
The effect of hydrothermal treatment on properties (crystallinity, porous structure, reducibility, acidity, basicity, and catalytic activity and selectivity in toluene and ethanol total oxidation) of Ni—Al layered double hydroxide precursors and related mixed oxides was examined. The hydrothermal treatment increased considerably both the content of crystalline phase and LDH crystallite size. On the other hand, only a slight effect of the precursor hydrothermal treatment on crystallinity of the related Ni—Al mixed oxides obtained by calcination at 450°C was observed. The reducibility of NiO particles appeared to be hindered considerably compared to the reducibility of pure NiO. Catalytic activity of the Ni—Al mixed oxides prepared from the precursors hydrothermally treated for a short time (4 h) was the highest. The highest amount of acetaldehyde formed during the total oxidation of ethanol, i.e. the worst selectivity was found for the calcined Ni—Al LDH without hydrothermal treatment.
Similar content being viewed by others
References
Papaefthimiou, P., Ioannides, T., and Verykios, E. X., Appl. Catal., B 13, 175 (1997).
Larson, P. O., Berggren, H., and Andersson, A., Catal. Today 35, 137 (1997).
Lintz, H. G. and Wittstock, K., Catal. Today 29, 457 (1996).
Cavani, F., Trifiro, F., and Vaccari, A., Catal. Today 11, 173 (1991).
Vaccari, A., Catal. Today 41, 53 (1998).
Basile, F., and Vaccari, A., in Layered Double Hydroxides: Present and Future (Rives, V., Editor), p. 285. Nova Science Publishers, New York, 2001.
Kovanda, F., Jirátová, K., and Kalousková, R., in Advances in Chemistry Research, Vol. 1 (Gerard, F. L., Editor), p. 89. Nova Science Publishers, New York, 2006.
Jirátová, K., Čuba, P., Kovanda, F., Hilaire, L., and Pitchon, V., Catal. Today 76, 43 (2002).
Bahranowski, K., Bielanska, E., Janik, R., Machej, T., and Serwicka, E. M., Clay Miner. 34, 67 (1999).
Forano, C., in Clay Surfaces: Fundamentals and Applications (Wypych, F. and Satyanarayana, K. G., Editors), p. 425. Elsevier, Amsterdam, 2004.
Roy, D. M., Roy, R., and Osborn, E. F., Am. J. Sci. 251, 337 (1953).
Miyata, S., Clays Clay Miner. 28, 50 (1980).
Kovanda, F., Koloušek, D., Cílová, Z., and Hulínský, V., Appl. Clay Sci. 28, 101 (2005).
Kruissink, E. C., van Reijen, L. L., and Ross, J. R. H., J. Chem. Soc., Faraday Trans. 177, 649 (1981).
Schneider, P., Appl. Catal., A 129, 157 (1995).
Obalová, L., Jirátová, K., and Kovanda, F., J. Mol. Catal., A 248, 210 (2006).
Clause, O., Gazzano, M., Trifiro, F., Vaccari, A., and Zatorski, L., Appl. Catal. 73, 217 (1991).
Puxley, P. C., Kitchener, I. J., Komodromos, C., and Parkyns, N. D., in Studies in Surface Science, Vol. 16, Preparation of Catalysts III (Poncelet, G., Grange, P., and Jacobs, P., Editors), p. 227. Elsevier, Amsterdam, 1983.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Mikulová, Z., Čuba, P., Balabánová, J. et al. Calcined Ni—Al layered double hydroxide as a catalyst for total oxidation of volatile organic compounds: Effect of precursor crystallinity. Chem. Pap. 61, 103–109 (2007). https://doi.org/10.2478/s11696-007-0006-7
Received:
Revised:
Accepted:
Issue Date:
DOI: https://doi.org/10.2478/s11696-007-0006-7