Structure of Co and Co oxide clusters in MCM-41

A. Jentys; N. H. Pham; H. Vinek; M. Englisch; J. A. Lercher

doi:10.1016/S0920-5861(97)00119-3

Structure of Co and Co oxide clusters in MCM-41

A. Jentys, N. H. Pham, H. Vinek, M. Englisch, J. A. Lercher

Research output: Contribution to journal › Article › peer-review

31 Scopus citations

Abstract

The structural properties of Co/MCM-41 with pore diameters between 2.9 and 3.6 nm prepared by direct synthesis and impregnation were investigated. For both preparation methods, the size of the metal particles decreased with the pore diameter. For Co/MCM-41 with the same pore diameter we observed that the direct synthesis method led to significantly smaller metal clusters compared to the impregnation method. For all Co/MCM-41 samples constraints of the metal cluster sizes were observed, which are speculated to result from influences of the micro structure during the formation of the catalyst precursor.

Original language	English
Pages (from-to)	311-315
Number of pages	5
Journal	Catalysis Today
Volume	39
Issue number	4
DOIs	https://doi.org/10.1016/S0920-5861(97)00119-3
State	Published - 2 Mar 1998
Externally published	Yes

Keywords

Co in MCM-41
EXAFS
Particle size determination

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10.1016/S0920-5861(97)00119-3

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title = "Structure of Co and Co oxide clusters in MCM-41",

abstract = "The structural properties of Co/MCM-41 with pore diameters between 2.9 and 3.6 nm prepared by direct synthesis and impregnation were investigated. For both preparation methods, the size of the metal particles decreased with the pore diameter. For Co/MCM-41 with the same pore diameter we observed that the direct synthesis method led to significantly smaller metal clusters compared to the impregnation method. For all Co/MCM-41 samples constraints of the metal cluster sizes were observed, which are speculated to result from influences of the micro structure during the formation of the catalyst precursor.",

keywords = "Co in MCM-41, EXAFS, Particle size determination",

author = "A. Jentys and Pham, {N. H.} and H. Vinek and M. Englisch and Lercher, {J. A.}",

note = "Funding Information: The work was supported by the “Fonds zur F{\"o}rderung der Wissenschaftlichen Forschung” under project FWF P10874. We would like to thank the CLRC Daresbury Laboratory for the provision of synchrotron radiation under the EEC contract no. CHGE-CT93-0036.",

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doi = "10.1016/S0920-5861(97)00119-3",

language = "English",

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TY - JOUR

T1 - Structure of Co and Co oxide clusters in MCM-41

AU - Jentys, A.

AU - Pham, N. H.

AU - Vinek, H.

AU - Englisch, M.

AU - Lercher, J. A.

N1 - Funding Information: The work was supported by the “Fonds zur Förderung der Wissenschaftlichen Forschung” under project FWF P10874. We would like to thank the CLRC Daresbury Laboratory for the provision of synchrotron radiation under the EEC contract no. CHGE-CT93-0036.

PY - 1998/3/2

Y1 - 1998/3/2

N2 - The structural properties of Co/MCM-41 with pore diameters between 2.9 and 3.6 nm prepared by direct synthesis and impregnation were investigated. For both preparation methods, the size of the metal particles decreased with the pore diameter. For Co/MCM-41 with the same pore diameter we observed that the direct synthesis method led to significantly smaller metal clusters compared to the impregnation method. For all Co/MCM-41 samples constraints of the metal cluster sizes were observed, which are speculated to result from influences of the micro structure during the formation of the catalyst precursor.

AB - The structural properties of Co/MCM-41 with pore diameters between 2.9 and 3.6 nm prepared by direct synthesis and impregnation were investigated. For both preparation methods, the size of the metal particles decreased with the pore diameter. For Co/MCM-41 with the same pore diameter we observed that the direct synthesis method led to significantly smaller metal clusters compared to the impregnation method. For all Co/MCM-41 samples constraints of the metal cluster sizes were observed, which are speculated to result from influences of the micro structure during the formation of the catalyst precursor.

KW - Co in MCM-41

KW - EXAFS

KW - Particle size determination

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U2 - 10.1016/S0920-5861(97)00119-3

DO - 10.1016/S0920-5861(97)00119-3

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VL - 39

SP - 311

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JO - Catalysis Today

JF - Catalysis Today

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ER -

Structure of Co and Co oxide clusters in MCM-41

Abstract

Keywords

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