Abstract
The effect of potassium and calcium additives on the catalytic activity of the Ce0.8Zr0.2O2 system in the reaction of CO oxidation was studied. With the use of X-ray diffraction analysis, it was found that the Ce0.8Zr0.2O2 and Ce0.8Zr0.2O2–Ca,K samples contained a mixed oxide of cerium and zirconium; the presence of the independent phases of potassium and calcium compounds in the modified system was not detected. With the use of the low-temperature adsorption–desorption of nitrogen, X-ray photoelectron spectroscopy, and temperature-programmed reduction, it was established that the Ce0.8Zr0.2O2–Ca,K system (in spite of the fact that its specific surface area was lower than that of Ce0.8Zr0.2O2) contained more active oxygen on the surface; peroxide and superoxide complexes formed upon the chemisorption of O2 can act as active oxygen species. This can be the reason for a higher efficiency of the Ce0.8Zr0.2O2–Ca,K system in comparison with that of the unmodified oxide. The results obtained indicate that the ash impurities of Ca and K can increase the catalytic activity of the biomorphic mixed oxides Ce0.8Zr0.2O2 prepared with the use of sawdust as a template.
Similar content being viewed by others
References
Royer, S. and Duprez, D., ChemCatChem, 2010, vol. 3, no. 1, p. 24.
European Environment Agency. http://www.eea.europa. eu/data-and-maps/data/data-viewers/air-emissionsviewer-lrtap.
Ozawa, M., J. Alloys Compd., 1998, vols. 275–277, p. 886.
Duprez, D., Descorme, C., Birchem, T., and Rohart, E., Top. Catal., 2001, vol. 16, p. 49.
Zheng, X-C., Wang, S.-P., Wang, S.-R., Zhang, S.M., Huang, W.P., and Wu, S.H., Mater. Sci. Eng., 2005, vol. 25, p. 516.
Ayastuy, J.L., Iglesias-González, A., and Gutiérrez-Ortiz, M.A., J. Chem. Eng., 2014, vol. 244, p. 372.
Cao, J.L., Deng, Q.F., and Yuan, Z.Y., J. Mater. Sci., 2009, vol. 44, no. 24, p. 6663.
Pu, Z.-Y., Liu, X.-S., Jia, A.-P., Xie, Y.L., Lu, J.Q., and Luo, M.F., J. Phys. Chem. C, 2008, vol. 112, p. 15045.
Hori, C.E., Permana, H., Ng, K.Y.S., Brenner, A., More, K., Rahmoeller, K.M., and Belton, D., Appl. Catal., B, 1998, vol. 16, p. 105.
Fornasiero, P., Dimonte, R., Rao, G.R., Kaspar, J., Meriani, S., Trovarelli, A., and Graziani, M., J. Catal., 1995, vol. 151, no. 1, p. 168.
Aneggi, E., de Leitenburg, C., Dolcetti, G., and Trovarelli, A., Catal. Today, 2008, vol. 136, no. 1, p. 3.
Kaplin, I.Yu., Lokteva, E.S., Golubina, E.V., Maslakov, K.I., Chernyak, S.A., Levanov, A.V., Strokova, N.E., and Lunin, V.V., Russ. J. Phys. Chem. A, 2016, vol. 90, no. 11, p. 2157.
Kuznetsova, T.G., Sadykov, V.A., Moroz, E.M., Trukhan, S.N., Paukshtis, E.A., Kolomiichuk, V.N., Burgina, E.V., Zaikovskii, V.I., Fedotov, M.A., Lunin, V.V., and Kemnitz, E., Stud. Surf. Sci. Catal., 2000, vol. 143, p. 659.
Cerfontain, M.B., Meijer, R., Kapteijn, F., and Moulijn, J.A., J. Catal., 1987, vol. 107, p. 173.
Dolle, P., Drissi, S., Besancon, M., and Jupille, J., Surf. Sci., 1992, vols. 269–270, p. 687.
Mullins, D.R., Overbury, S.H., and Huntley, D.R., Surf. Sci., 1998, vol. 409, no. 2, p. 307.
Abi-aad, E., Bechara, R., Grimblot, J., and Aboukais, A., Chem. Mater., 1993, vol. 5, no. 6, p. 793.
Noronha, F.B., Fendley, E.C., Soareset, R.R., Alvarez, W.E., and Resasco, D.E., J. Chem. Eng., 2001, vol. 82, p. 21.
Galtayries, A., Sporken, R., Riga, J., Blanchard, G., and Caudano, R., J. Electron Spectrosc. Relat. Phenom., 1998, vol. 88, p. 951.
Nelson, A.E. and Schulz, K.H., Appl. Surf. Sci., 2003, vol. 210, p. 206.
Tang, X., Zhang, B., Li, Y., Xu, Y., Xin, Q., and Shen, W., Catal. Today, 2004, vol. 93, p. 191.
Holgado, J.P., Munuera, G., Espinós, J.P., and González-Elipe, A.R., Appl. Surf. Sci., 2000, vol. 158, p. 164.
Yao, H.C. and Yu-Yao, Y.F., J. Catal., 1984, vol. 86, p. 254.
Zhang, C., Wen, X.D., Teng, B.T., Zhao, Y., and Fan, M., Fuel Process. Technol., 2015, vol. 131, p. 1.
Wang, X.Y., Kang, Q., and Li, D., Catal. Commun., 2008, vol. 9, p. 2158.
Trovarelli, A., Deleitenburg, C., Dolcetti, G., and Lorca, J.L., J. Catal., 1995, vol. 151, no. 1, p. 111.
Terribile, D., Trovarelli, A., de Leitenburg, C., Primavera, A., and Dolcetti, G., Catal. Today, 1999, vol. 47, p. 133.
Atribak, I., Bueno-López, A., and García-García, A., J. Catal., 2008, vol. 259, no. 1, p. 123.
Guillén-Hurtado, N., Bueno-López, A., and García-García, A., J. Mater. Sci., 2012, vol. 47, p. 3204.
Zhu, Z.H. and Lu, G.Q., J. Catal., 1999, vol. 197, p. 262.
Zhu, Z.H., Lu, G.Q., and Yang, R.T., J. Catal., 2000, vol. 192, p. 77.
Ogura, M., Kimura, R., Ushiyama, H., Nikaido, F., Yamashita, K., and Okubo, T., ChemCatChem, 2014, vol. 6, p. 479.
Weng, D., Li, J., Wu, X., and Si, Z., J. Environ. Sci., 2011, vol. 23, no. 1, p. 145.
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © I.Yu. Kaplin, E.S. Lokteva, E.V. Golubina, K.I. Maslakov, S.A. Chernyak, V.V. Lunin, 2017, published in Kinetika i Kataliz, 2017, Vol. 58, No. 5, pp. 598–605.
Rights and permissions
About this article
Cite this article
Kaplin, I.Y., Lokteva, E.S., Golubina, E.V. et al. Promoting effect of potassium and calcium additives to cerium–zirconium oxide catalysts for the complete oxidation of carbon monoxide. Kinet Catal 58, 585–592 (2017). https://doi.org/10.1134/S0023158417050081
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0023158417050081