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
Chalmers, Kemi och kemiteknik, Tillämpad kemi
Kompetenscentrum katalys
Per-Anders Carlsson
Kompetenscentrum katalys
Chalmers, Kemi och kemiteknik, Tillämpad kemi
Marcus Alden
Lunds universitet
Edvin Lundgren
Lunds universitet
Nature Communications
2041-1723 (ISSN) 20411723 (eISSN)
Vol. 6 Art. no. 7076- 7076Högeffektiv Ottomotor med utspädd förbränning II
Energimyndigheten (35561-2), 2015-01-01 -- 2017-12-31.
Tidsupplösta in situ metoder för design av katalytiska säten för hållbar kemi
Vetenskapsrådet (VR) (2013-567), 2013-01-01 -- 2016-12-31.
Drivkrafter
Hållbar utveckling
Styrkeområden
Nanovetenskap och nanoteknik
Transport
Energi
Materialvetenskap
Ämneskategorier
Fysikalisk kemi
Atom- och molekylfysik och optik
DOI
10.1038/ncomms8076