Mössbauer emission and absorption studies on the reduction behaviour of supported Co, Co-Mo, Fe and Fe-Mo hydrotreating catalysts

M.W.J. Crajé; R.H. Hadders; W.L.T.M. Ramselaar; E. Gerkema; V.H.J. Beer, de; A.M. Kraan, van der

doi:10.1007/BF02405725

Mössbauer emission and absorption studies on the reduction behaviour of supported Co, Co-Mo, Fe and Fe-Mo hydrotreating catalysts

M.W.J. Crajé, R.H. Hadders, W.L.T.M. Ramselaar, E. Gerkema, V.H.J. Beer, de, A.M. Kraan, van der

Inorganic Materials & Catalysis

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Abstract

In carbon-supported Fe-Mo catalysts an Fe-Mo alloy can be formed during reduction in H2 at 673 K. In carbon-supported Co-Mo catalysts, instead of the formation of a Co-Mo alloy segregation of metallic Co is observed. In alumina-supported Fe and Fe-Mo catalysts, the interaction between the alumina support and the catalyst particles hinders reduction of the ions to an Fe0 phase. Most probably a surface "Fe(II)-aluminate" is formed.

Original language	English
Pages (from-to)	1801-1808
Number of pages	8
Journal	Hyperfine Interactions
Volume	57
Issue number	1-4
DOIs	https://doi.org/10.1007/BF02405725
Publication status	Published - 1990

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@article{dbf8e94392a54820a5f01dc232171493,

title = "M{\"o}ssbauer emission and absorption studies on the reduction behaviour of supported Co, Co-Mo, Fe and Fe-Mo hydrotreating catalysts",

abstract = "In carbon-supported Fe-Mo catalysts an Fe-Mo alloy can be formed during reduction in H2 at 673 K. In carbon-supported Co-Mo catalysts, instead of the formation of a Co-Mo alloy segregation of metallic Co is observed. In alumina-supported Fe and Fe-Mo catalysts, the interaction between the alumina support and the catalyst particles hinders reduction of the ions to an Fe0 phase. Most probably a surface {"}Fe(II)-aluminate{"} is formed.",

author = "M.W.J. Craj{\'e} and R.H. Hadders and W.L.T.M. Ramselaar and E. Gerkema and {Beer, de}, V.H.J. and {Kraan, van der}, A.M.",

year = "1990",

doi = "10.1007/BF02405725",

language = "English",

volume = "57",

pages = "1801--1808",

journal = "Hyperfine Interactions",

issn = "0304-3843",

publisher = "Springer",

number = "1-4",

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TY - JOUR

T1 - Mössbauer emission and absorption studies on the reduction behaviour of supported Co, Co-Mo, Fe and Fe-Mo hydrotreating catalysts

AU - Crajé, M.W.J.

AU - Hadders, R.H.

AU - Ramselaar, W.L.T.M.

AU - Gerkema, E.

AU - Beer, de, V.H.J.

AU - Kraan, van der, A.M.

PY - 1990

Y1 - 1990

N2 - In carbon-supported Fe-Mo catalysts an Fe-Mo alloy can be formed during reduction in H2 at 673 K. In carbon-supported Co-Mo catalysts, instead of the formation of a Co-Mo alloy segregation of metallic Co is observed. In alumina-supported Fe and Fe-Mo catalysts, the interaction between the alumina support and the catalyst particles hinders reduction of the ions to an Fe0 phase. Most probably a surface "Fe(II)-aluminate" is formed.

AB - In carbon-supported Fe-Mo catalysts an Fe-Mo alloy can be formed during reduction in H2 at 673 K. In carbon-supported Co-Mo catalysts, instead of the formation of a Co-Mo alloy segregation of metallic Co is observed. In alumina-supported Fe and Fe-Mo catalysts, the interaction between the alumina support and the catalyst particles hinders reduction of the ions to an Fe0 phase. Most probably a surface "Fe(II)-aluminate" is formed.

U2 - 10.1007/BF02405725

DO - 10.1007/BF02405725

M3 - Article

SN - 0304-3843

VL - 57

SP - 1801

EP - 1808

JO - Hyperfine Interactions

JF - Hyperfine Interactions

IS - 1-4

ER -

Mössbauer emission and absorption studies on the reduction behaviour of supported Co, Co-Mo, Fe and Fe-Mo hydrotreating catalysts

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