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

Korneel H. Cats; Ines D. Gonzalez-Jimenez; Yijin Liu; Johanna Nelson; Douglas van Campen; Florian Meirer; Ad M. J. van der Eerden; Frank M. F. de Groot; Joy C. Andrews; Bert M. Weckhuysen

doi:10.1039/C3CC00160A

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

Korneel H. Cats,^a Ines D. Gonzalez-Jimenez,^a Yijin Liu,^b Johanna Nelson,^b Douglas van Campen,^b Florian Meirer,^c Ad M. J. van der Eerden,^a Frank M. F. de Groot,^a Joy C. Andrews^b and Bert M. Weckhuysen*^a

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^a Inorganic Chemistry and Catalysis Group, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
E-mail: b.m.weckhuysen@uu.nl
Fax: +31-30-251-1027
Tel: +31-30-253-4328

^b Stanford Synchrotron Radiation Lightsource, 2575 Sand Hill Road, Menlo Park, California 94025, USA

^c Fondazione Bruno Kessler, Via Sommarive 18, I-38050 Povo, Italy

Abstract

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 °C and 10 bar. No evidence for Co oxidation was found.

Chemical Communications

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

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