Journal
NATURE COMMUNICATIONS
Volume 6, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms8076
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Funding
- foundation for strategic research (SSF)
- Swedish Research Council
- Crafoord Foundation
- Knut and Alice Wallenberg Foundation
- Anna and Edwin Berger Foundation
- NordForsk and the Center of Combustion Science and Technology, CECOST
- Swedish Energy Agency
- AB Volvo
- ECAPS AB
- Haldor Topsoe A/S
- Scania CV AB
- Volvo Car Corporation AB
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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 mu m) and temporal (15 mu s) 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.
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