Spatially and temporally resolved gas distributions around heterogeneous catalysts using infrared planar laser-induced fluorescence
Artikel i vetenskaplig tidskrift, 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.

Författare

Johan Zetterberg

Lunds Universitet

Sara Blomberg

Lunds Universitet

Johan Gustafson

Lunds Universitet

Jonas Evertsson

Lunds Universitet

Jianfeng Zhou

Lunds Universitet

Emma Adams

Kemi och kemiteknik, Tillämpad kemi, Teknisk ytkemi

Kompetenscentrum katalys (KCK)

Per-Anders Carlsson

Kemi och kemiteknik, Tillämpad kemi, Teknisk ytkemi

Kompetenscentrum katalys (KCK)

Marcus Alden

Lunds Universitet

Edvin Lundgren

Lunds Universitet

Nature Communications

2041-1723 (ISSN)

Vol. 6 Art. no. 7076- 7076

Drivkrafter

Hållbar utveckling

Styrkeområden

Nanovetenskap och nanoteknik

Transport

Energi

Materialvetenskap

Ämneskategorier

Fysikalisk kemi

Atom- och molekylfysik och optik

DOI

10.1038/ncomms8076