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Mössbauer spectroscopic studies of passivated layers of iron-containing catalysts for ammonia synthesis

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Abstract

Combined conversion electron (CEMS) and transmission γ-ray (MS) Mössbauer spectroscopy was used to study the structure of passivated layers of promoted and unpromoted iron-containing catalysts. In both catalysts the oxide-coated films were found to consist of small “paramagnetic” (at 300 K) clusters of ferric oxide.

Abstract

Структура пассивационных плёнок промотированных и непромотированных катализаторов синтеза аммиака изучалась в мессбауэровской абсорбционной и конверсионной спектроскопии. В обоих типах катализаторов удалось наблюдать пассивационный слой вблизи поверхноти, состоящий из мелких парамагнитных (при 300 К) кластеров окиси железа.

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Authors and Affiliations

  1. Institute of Chemical Physics, Moscow, USSR

    Yu. V. Maksimov, R. A. Arents, Yu. V. Baldokhin & I. P. Suzdalev

  2. State Institute of Nitrogen Industry, Moscow, USSR

    D. M. Minaev & R. V. Chesnokova

Authors
  1. Yu. V. Maksimov
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  2. R. A. Arents
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  3. Yu. V. Baldokhin
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  4. I. P. Suzdalev
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  5. D. M. Minaev
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  6. R. V. Chesnokova
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Maksimov, Y.V., Arents, R.A., Baldokhin, Y.V. et al. Mössbauer spectroscopic studies of passivated layers of iron-containing catalysts for ammonia synthesis. React Kinet Catal Lett 21, 81–84 (1982). https://doi.org/10.1007/BF02064777

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  • DOI: https://doi.org/10.1007/BF02064777

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