Spatially and temporally resolved gas distributions around heterogeneous catalysts using infrared planar laser-induced fluorescence
Journal article, 2015

Visualizing and measuring the gas distribution in close proximity to a working catalyst is crucial for understanding how the catalytic activity depends on the structure of the catalyst. However, existing methods are not able to fully determine the gas distribution during a catalytic process. Here we report on how the distribution of a gas during a catalytic reaction can be imaged in situ with high spatial (400 μm) and temporal (15 μs) resolution using infrared planar laser-induced fluorescence. The technique is demonstrated by monitoring, in real-time, the distribution of carbon dioxide during catalytic oxidation of carbon monoxide above powder catalysts. Furthermore, we demonstrate the versatility and potential of the technique in catalysis research by providing a proof-of-principle demonstration of how the activity of several catalysts can be measured simultaneously, either in the same reactor chamber, or in parallel, in different reactor tubes.

Author

Johan Zetterberg

Lund University

Sara Blomberg

Lund University

Johan Gustafson

Lund University

Jonas Evertsson

Lund University

Jianfeng Zhou

Lund University

Emma Adams

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry, Applied Surface Chemistry

Competence Centre for Catalysis (KCK)

Per-Anders Carlsson

Competence Centre for Catalysis (KCK)

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry, Applied Surface Chemistry

Marcus Alden

Lund University

Edvin Lundgren

Lund University

Nature Communications

2041-1723 (ISSN)

Vol. 6 Art. no. 7076- 7076

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Driving Forces

Sustainable development

Areas of Advance

Nanoscience and Nanotechnology (2010-2017)

Transport

Energy

Materials Science

Subject Categories

Physical Chemistry

Atom and Molecular Physics and Optics

DOI

10.1038/ncomms8076

More information

Latest update

10/27/2018