This article is cited in 2 papers

Physical science of materials

Structural changes in iron-cobalt oxide nanosystems

K. N. Nishchev^a, M. A. Golub'ev^a, Yu. V. Maksimov^b, V. I. Beglov^a, V. M. Kyashkin^a, A. A. Panov<sup>a

a</sup> Ogarev Mordovia State University, Saransk
^b N. N. Semenov Institute of Chemical Physics, Russian Academy of Sciences, Moscow

Abstract: The structure of binary iron-cobalt oxide nanosystems–precursors of bimetallic catalysts–is studied by Mössbauer spectroscopy, X-ray diffraction, and small-angle X-ray scattering. The oxide system under study represents a promising material for creating new metallic nanocatalysts for ammonia synthesis. The structural evolution in the composition range 100Fe/0Co–5Fe/95Co is found to correspond to the transition from fine-grained $\alpha$-Fe$_2$O$_3$ to mixed iron-cobalt spinels of various compositions and degrees of dispersity.

Received: 08.08.2014

 English version: Technical Physics, 2015, 60:5, 695–699

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