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The effect of manganese on the structural and surface properties of nanocrystalline cobalt catalyst for ammonia synthesis

✍ Scribed by Lendzion-Bieluń, Zofia

Book ID
111488327
Publisher
Walter de Gruyter GmbH
Year
2012
Tongue
English
Weight
622 KB
Volume
10
Category
Article
ISSN
2391-5420

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✦ Synopsis

Abstract

Based on the active surface model of the iron catalyst for ammonia synthesis, the assumptions which led to obtaining the cobalt catalyst for ammonia synthesis were described. The incorporation into the system small amounts of manganese, an element which binds oxygen stronger than cobalt, has influence the development of the catalyst’s specific surface area. The activity of manganese modified catalysts is higher than that of cobalt catalyst without manganese addition. The obtained catalysts were characterized with the following methods: ICP-OES, XRD, BET

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## Abstract BET, scanning electron microscopy, X‐ray diffraction, Mössbauer spectroscopy, X‐ray fluorescence spectroscopy and McBain thermobalance were used to investigate the effect of cobalt on the reduction behavior and activity of used iron catalyst for ammonia synthesis. Activity tests were ca