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Issue 15, 2016
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Capturing metal-support interactions in situ during the reduction of a Re promoted Co/γ-Al2O3 catalyst

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Abstract

The reduction of a Re promoted Co/γ-Al2O3 catalyst was monitored in situ by synchrotron X-ray powder diffraction (XRPD) under H2 environment. Whole powder pattern analysis revealed a non-linear expansion of the unit cell of γ-Al2O3 during the reduction process, suggesting the diffusion of Co cations into the structure of the support. The non-linear cell expansion coincided with the formation of a CoO phase. In addition, space resolved diffraction at the inlet and the outlet of the reactor evidenced a negative effect of the partial pressure of indigenous H2O(g) on the reduction process.

Graphical abstract: Capturing metal-support interactions in situ during the reduction of a Re promoted Co/γ-Al2O3 catalyst

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Article information


Submitted
01 Dec 2015
Accepted
15 Jan 2016
First published
26 Jan 2016

Chem. Commun., 2016,52, 3239-3242
Article type
Communication
Author version available

Capturing metal-support interactions in situ during the reduction of a Re promoted Co/γ-Al2O3 catalyst

N. E. Tsakoumis, R. E. Johnsen, W. van Beek, M. Rønning, E. Rytter and A. . Holmen, Chem. Commun., 2016, 52, 3239
DOI: 10.1039/C5CC09879C

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