Abstract
The influence of the promoter (Pd) modifying additives of oxides of rare-earth (La2O3, CeO2) and transition (NiO, CuO) metal oxides on the catalytic activity of Co3O4/cordierite in reactions of O2 and NO reduction by hydrogen was studied. Introducing Pd and rare-earth metal oxides into the composition of cobalt oxide catalyst results in an increase in its activity in H2 + 1/2O2 → H2O, H2 + NO → 1/2N2 + H2O reactions and an increase in selectivity upon oxygen reduction by hydrogen in the presence of nitric oxide, due possibly to a decrease in the strength of oxygen bounds with the surface and the formation of low-temperature forms of oxygen, which is not typical of unpromoted cobalt oxide catalyst. A structured Pd-Co3O4-La2O3/cordierite catalyst was developed that surpasses the commercial granulated silver-manganese catalyst used in industry to purify the technological gases used in the production of hydroxylamine sulfate of oxygen impurities with reference to activity and selectivity (in the process of oxygen reduction in the presence of nitric oxide), and to thermal stability.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Gerasimenko, V.I., Ogarkov, A.A., Ardamakov, S.V., et al., Ross. Khim. Zh., 2006, vol. 50, no. 3, p. 64.
RF Patent 2161533, 2000.
Golodets, G.I., Geterogenno-kataliticheskie reaktsii s uchastiem molekulyarnogo kisloroda (Heterogeneous Catalytic Reactions with Participation of Molecular Oxygen), Kiev: Naukova Dumka, 1977.
Rode, E.Ya., Kislorodnye soedineniya margantsa (Oxygen Compounds of Manganese), Moscow: Izd. AN SSSR, 1952.
Jansson, J., Skoglundh, M., Fridell, E., and Thormehlen, P., Top. Catal., 2001, vols. 16–17, p. 385.
Solsona, B., Davies, Th.E., Garcia, T., et al., Appl. Catal. B, 2008, vol. 84, p. 176.
Luo, J.Y., Meng, M., Li, X., et al., J. Catal., 2008, vol. 254, p. 310.
Twagirashema, I., Engelmann-Pirez, M., Frere, M., et al., Cat. Today, 2007, vol. 119, p. 100.
Chiarello, G.L., Grunwaldt, J.D., Ferri, D., et al., J. Catal., 2007, vol. 252, p. 127.
Kim, D.H., Woo, S.I., and Lee, J.M., Catal. Lett., 2000, vol. 70, nos. 1–2, p. 35.
Mokhnachuk, O.V., Soloviev, S.O., and Kapran, A.Yu., Catal. Today, 2007, vol. 119, nos. 1–4, p. 145.
Solov’ev, S.A., Kurilets’, Ya.P., and Orlik, S.N., Teoret. i Eksperim. Khim., 2003, vol. 39, no. 1, p. 50.
Bianchi, C.L., Catal. Lett., 2001, vol. 76, nos. 3–4, p. 155.
Acerbi, N., Tsang, Sh.Ch., Golunski, S., and Collier, P., Chem. Commun., 2008, vol. 13, p. 1578.
Makshina, E.V., Sirotin, S.V., Yushchenko, V.V., et al., Kinet. Katal., 2006, vol. 47, no. 1, p. 54 [Kinet. Catal. (Engl. Transl.), vol. 47, no. 1, p. 49].
Duprez, D., Descorme, C., Birchem, T., and Rohart, E., Top. Catal., 2001, vols. 16–17, p. 49.
Banholzer, W.F. and Wesel, R.I., J. Catal., 1984, vol. 85, no. 1, p. 127.
Lim, K.J., Loffler, D.J., and Boudart, M., J. Catal., 1986, vol. 100, no. 1, p. 158.
Tsyrul’nikov, P.G., Afonasenko, T.N., Koshcheev, S.V., and Boronin, A.I., Kinet. Katal., 2007, vol. 48, no. 5, p. 778 [Kinet. Catal. (Engl. Transl.), vol. 48, no. 5, p. 728].
Author information
Authors and Affiliations
Additional information
Original Russian Text © S.A. Solov’ev, P.I. Kirienko, 2010, published in Kataliz v Promyshlennosti.
Rights and permissions
About this article
Cite this article
Solov’ev, S.A., Kirienko, P.I. Designing a structured catalyst for selective reduction of O2 by hydrogen in the presence of NO. Catal. Ind. 2, 299–306 (2010). https://doi.org/10.1134/S2070050410040021
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S2070050410040021