New method for synthesis of binary borides with desired properties

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Abstract

In this work, complexes [Co(solv)n][B10H10] (I: solv = H2O, n = 6; II: solv = N2H4, n = e synthesis of binary borides is shown. The purity and homogeneity of the precursors and the products of their thermal reduction (in an inert atmosphere at 650 and 900 °C) has been established by the methods of elemental analysis, X-ray powder diffraction, and IR spectroscopy; magnetochemical studies of precursors and their annealing products have been carried out. According to the data obtained, the reduction products are structured oxide-boride and nitride-boride phases, respectively. Magnetochemical study of the phases showed a significant difference in their magnetic behavior: the oxide-boride phase is characterized by a significant ferromagnetic contribution to the total magnetization of the sample, and the nitride-boride phase is diamagnetic.

About the authors

E. A. Malinina

Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences

Author for correspondence.
Email: malinina@igic.ras.ru
Russian Federation, 31, Leninsky prospekt, Moscow, 119991

L. V. Goeva

Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences

Email: malinina@igic.ras.ru
Russian Federation, 31, Leninsky prospekt, Moscow, 119991

G. A. Buzanov

Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences

Email: malinina@igic.ras.ru
Russian Federation, 31, Leninsky prospekt, Moscow, 119991

V. V. Avdeeva

Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences

Email: avdeeva.varvara@mail.ru
Russian Federation, 31, Leninsky prospekt, Moscow, 119991

N. N. Efimov

Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences

Email: malinina@igic.ras.ru
Russian Federation, 31, Leninsky prospekt, Moscow, 119991

N. T. Kuznetsov

Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences

Email: malinina@igic.ras.ru

Academician of the Russian Academy of Sciences

Russian Federation, 31, Leninsky prospekt, Moscow, 119991

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