Abstract
Potassium polyferrites K2\({\text{Fe}}_{{1 - q}}^{{{\text{II}}}}\)Mq\({\text{Fe}}_{{10}}^{{{\text{III}}}}\)O17 (where M is Mg and Zn) and K2–2qFeIIMq\({\text{Fe}}_{{10}}^{{{\text{III}}}}\)O17 (where M is Ca and Sr; q = 0–0.4) are synthesized to determine the effect of the size of a doubly charged dopant ion on their catalytic properties. The mechanism of the effect of doubly charged cation additives on the activity, selectivity, and corrosion resistance of potassium β'' polyferrite is identified. It is shown for the first time that doubly charged cations are distributed differently in the structure of β'' polyferrite depending on their size: either they are in a spinel-like block and then replace Fe2+ ions, or they replace potassium in interblock space. The Mg2+ and Zn2+ ion additives sharply reduce the catalytic activity and selectivity of β'' polyferrite. Such additives are undesirable. Small amounts of Ca2+ and Sr2+ cations greatly improve the corrosion resistance of the catalysts due to a drop in the mobility of potassium ions within a cation-conducting layer.
Similar content being viewed by others
REFERENCES
Meima, G. and Menon, P., Appl. Catal., A, 2001, vol. 212, nos. 1–2, pp. 239–245.
Dvoretskii, N.V., Stepanov, E.G., Yun, V.V., and Kotel’nikov, G.R., Izv. Vyssh. Uchebn. Zaved.,Khim. Khim. Tekhnol., 1990, vol. 33, no. 8, pp. 3–9.
Dvoretskii, N.V., Stepanov, E.G., and Yun, V.V., Izv. Akad. Nauk SSSR,Neorg. Mater., 1991, vol. 27, no. 6, pp. 1265–1268.
Lamberov, A.A. and Gil’manov, Kh.Kh., Modernizatsiya katalizatorov i tekhnologii sinteza izoprena na OAO “Nizhnekamskneftekhim” (Modernization of Catalysts and Isoprene Synthesis Technology at OAO Nizhnekamskneftekhim), Kazan: Izd. Kazan Fed. Univ., 2012.
RF Patent 2 285 560, 2006.
RF Patent 2 664 124, 2018.
Abe, K., Kano, Yu., Ohshima, M., Kurokawa, H., and Miura, H., J. Jpn. Pet. Inst., 2011, vol. 54, no. 5, pp. 338–343.
Kano, Yu., Ohshima, M., Kurokawa, H., and Miura, H., React. Kinet., Mech. Catal., 2013, vol. 109, no. 1, pp. 29–41.
Li, Z. and Shanks, B.H., Appl. Catal., A, 2011, vol. 405, nos. 1–2, pp. 101–107.
Lamberov, A.A., Gilmanov, Kh.Kh., Dementeva, E.V., and Kuzmina, O.V., Catal. Ind., 2013, vol. 5, no. 1, pp. 50–60.
Serafin, I., Kotarba, A., Grzywa, M., Sojka, Z., Bińczycka, H., and Kuśtrowski, P., J. Catal., 2006, vol. 239, no. 1, pp. 137–144.
Plyasova, L.M., Andrushkevich, M.M., Kotelnikov, G.R., Buyanov, R.A., Khramova, G.A., Kustova, G.N., and Bednov, S.F., Kinet. Catal., 1976, vol. 17, no. 5, pp. 1116–1123.
Andrushkevich, M.M., Plyasova, L.M., Molchanov, V.V., Buyanov, R.A., Kotelnikov, G.R., and Abramov, V.K., Kinet. Catal., 1978, vol. 19, no. 2, pp. 332–337.
Dvoretskii, N.V., Anikanova, L.G., and Malysheva, Z.G., Izv. Vyssh. Uchebn. Zaved.,Khim. Khim. Tekhnol., 2018, vol. 61, no. 6, pp. 61–68.
Lee, E.H., Catal. Rev., 1973, vol. 8, no. 2, pp. 285–305.
Anikanova, L.G., Dvoretskii, N.V., and Malysheva, Z.G., Izv. Vyssh. Uchebn. Zaved.,Khim. Khim. Tekhnol., 2016, vol. 59, no. 1, pp. 23–26.
Anikanova, L.G. and Dvoretskii, N.V., Catal. Ind., 2016, no. 2, pp. 145–151.
Li, K., Wang, H., Wei, Y., and Liu, M., J. Rare Earths, 2008, vol. 26, no. 5, pp. 705–710.
Dvoretskii, N.V. and Anikanova, L.G., Izv. Vyssh. Uchebn. Zaved.,Khim. Khim. Tekhnol., 2011, vol. 54, no. 9, pp. 64–66.
Anikanova, L.G. and Dvoretskii, N.V., Catal. Ind., 2013, vol. 5, no. 1, pp. 74–79.
Kotarba, A., Rożek, W., Serafin, I., and Sojka, Z., J. Catal., 2007, vol. 247, no. 2, pp. 238–244.
Bieniasz, W., Trębala, M., Sojka, Z., and Kotarba, A., Catal. Today, 2010, vol. 154, nos. 3–4, pp. 224–228.
Bugaenko, L.T., Ryabykh, S.M., and Bugaenko, A.L., Vestn. Mosk. Univ., Ser. 2:Khim., 2008, vol. 49, no. 6, pp. 363–384.
Joseph, Y., Ketteler, G., Kuhrs, C., Ranke, W., Weiss, W., and Schlögl, R., Phys. Chem. Chem. Phys., 2001, vol. 3, no. 18, pp. 4141–4153.
Author information
Authors and Affiliations
Corresponding authors
Additional information
Translated by A. Tulyabaev
Rights and permissions
About this article
Cite this article
Anikanova, L.G., Dvoretskii, N.V. Effect of Doubly Charged Ion Additives on the Activity and Chemical Stability of Catalytically Active Potassium Ferrites. Catal. Ind. 12, 201–206 (2020). https://doi.org/10.1134/S2070050420030022
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S2070050420030022