X-ray nanoscopy of cobalt Fischer-Tropsch catalysts at work

被引：48

作者：

Cats, Korneel H. ^{[1
]}

Gonzalez-Jimenez, Ines D. ^{[1
]}

Liu, Yijin ^{[2
]}

Nelson, Johanna ^{[2
]}

van Campen, Douglas ^{[2
]}

Meirer, Florian ^{[3
]}

van der Eerden, Ad M. J. ^{[1
]}

de Groot, Frank M. F. ^{[1
]}

Andrews, Joy C. ^{[2
]}

Weckhuysen, Bert M. ^{[1
]}

机构：

[1] Univ Utrecht, Inorgan Chem & Catalysis Grp, Debye Inst Nanomat Sci, NL-3584 CG Utrecht, Netherlands

[2] Stanford Synchrotron Radiat Lightsource, Menlo Pk, CA 94025 USA

[3] Fdn Bruno Kessler, I-38050 Povo, Italy

来源：

CHEMICAL COMMUNICATIONS | 2013年 / 49卷 / 41期

关键词：

COMBINED IN-SITU; DEACTIVATION; XANES; XRD;

D O I：

10.1039/c3cc00160a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Transmission X-ray microscopy has been used to investigate individual Co/TiO2 Fischer-Tropsch (FT) catalyst particles in 2-D and 3-D with 30 nm spatial resolution. Tomographic elemental mapping showed that Co is heterogeneously concentrated in the centre of the catalyst particles. In addition, it was found that Co is mostly metallic during FT at 250 degrees C and 10 bar. No evidence for Co oxidation was found.

引用

页码：4622 / 4624

页数：3

共 18 条

[1] Chemical imaging of catalytic solids with synchrotron radiation
Beale, Andrew M.
Jacques, Simon D. M.
Weckhuysen, Bert M.
[J]. CHEMICAL SOCIETY REVIEWS, 2010, 39 (12) : 4656 - 4672
[2] Buurmans ILC, 2012, NAT CHEM, V4, P873, DOI [10.1038/NCHEM.1478, 10.1038/nchem.1478]
[3] Atomic-scale electron microscopy at ambient pressure
Creemer, J. F.
Helveg, S.
Hoveling, G. H.
Ullmann, S.
Molenbroek, A. M.
Sarro, P. M.
Zandbergen, H. W.
[J]. ULTRAMICROSCOPY, 2008, 108 (09) : 993 - 998
[4] Nanoscale chemical imaging of a working catalyst by scanning transmission X-ray microscopy
de Smit, Emiel
Swart, Ingmar
Creemer, J. Fredrik
Hoveling, Gerard H.
Gilles, Mary K.
Tyliszczak, Tolek
Kooyman, Patricia J.
Zandbergen, Henny W.
Morin, Cynthia
Weckhuysen, Bert M.
de Groot, Frank M. F.
[J]. NATURE, 2008, 456 (7219) : 222 - U39
[5] Hard X-ray Nanotomography of Catalytic Solids at Work
Gonzalez-Jimenez, Ines D.
Cats, Korneel
Davidian, Thomas
Ruitenbeek, Matthijs
Meirer, Florian
Liu, Yijin
Nelson, Johanna
Andrews, Joy C.
Pianetta, Piero
de Groot, Frank M. F.
Weckhuysen, Bert M.
[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2012, 51 (48) : 11986 - 11990
[6] Design, synthesis, and use of cobalt-based Fischer-Tropsch synthesis catalysts
Iglesia, E
[J]. APPLIED CATALYSIS A-GENERAL, 1997, 161 (1-2) : 59 - 78
[7] Fischer-Tropsch synthesis: Relations between structure of cobalt catalysts and their catalytic performance
Khodakov, Andrei Y.
[J]. CATALYSIS TODAY, 2009, 144 (3-4) : 251 - 257
[8] Combined in situ XRD and in situ XANES studies on the reduction behavior of a rhenium promoted cobalt catalyst
Kumar, Nitin
Payzant, E. A.
Jothimurugesan, K.
Spivey, J. J.
[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2011, 13 (32) : 14735 - 14741
[9] 3D elemental sensitive imaging using transmission X-ray microscopy
Liu, Yijin
Meirer, Florian
Wang, Junyue
Requena, Guillermo
Williams, Phillip
Nelson, Johanna
Mehta, Apurva
Andrews, Joy C.
Pianetta, Piero
[J]. ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 2012, 404 (05) : 1297 - 1301
[10] TXM-Wizard: a program for advanced data collection and evaluation in full-field transmission X-ray microscopy
Liu, Yijin
Meirer, Florian
Williams, Phillip A.
Wang, Junyue
Andrews, Joy C.
Pianetta, Piero
[J]. JOURNAL OF SYNCHROTRON RADIATION, 2012, 19 : 281 - 287

← 1 2 →