In-situ and In-operando Cobalt Oxidation Studied by Atom Probe Tomography

Heterogeneous catalysis is one of the pillars of the chemical industry and the “green chemistry” concept. However, the sparse understanding of surface mechanisms at molecular scale impedes development of high-performance catalysts and requires development of new tools and methodologies. Cobalt is no...

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Bibliographic Details
Published in:Microscopy and microanalysis 2020-08, Vol.26 (S2), p.1872-1873
Main Authors: Lambeets, Sten, Wirth, Mark, Orren, Graham, Kruse, Norbert, Perea, Daniel
Format: Article
Language:English
Subjects:
Approaching Operando Imaging of Functional Materials
Cobalt
Oxidation
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Summary:Heterogeneous catalysis is one of the pillars of the chemical industry and the “green chemistry” concept. However, the sparse understanding of surface mechanisms at molecular scale impedes development of high-performance catalysts and requires development of new tools and methodologies. Cobalt is notably able to dissociate CO2 into CO(g) and O2(g), allowing further conversion to higher value compounds such as long-chain hydrocarbons. Such application leads inevitably to Co surface oxidation. Finally, from its pure form (Co(0)) to oxidized ones (CoO and Co3O4) the formation mechanism remains unclear as well as the surface structure evolution and its influence on the chemical reaction.
ISSN:1431-9276
1435-8115
DOI:10.1017/S1431927620019650