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Träfflista för sökning "WFRF:(Pfaff Sebastian) srt2:(2019)"

Sökning: WFRF:(Pfaff Sebastian) > (2019)

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1.
  • Zhou, Jianfeng, et al. (författare)
  • Combining Planar Laser-Induced Fluorescence with Stagnation Point Flows for Small Single-Crystal Model Catalysts: CO Oxidation on a Pd(100)
  • 2019
  • Ingår i: Catalysts. - : MDPI AG. - 2073-4344. ; 9:5
  • Tidskriftsartikel (refereegranskat)abstract
    • A stagnation flow reactor has been designed and characterized for both experimental and modeling studies of single-crystal model catalysts in heterogeneous catalysis. Using CO oxidation over a Pd(100) single crystal as a showcase, we have employed planar laser-induced fluorescence (PLIF) to visualize the CO2 distribution over the catalyst under reaction conditions and subsequently used the 2D spatially resolved gas phase data to characterize the stagnation flow reactor. From a comparison of the experimental data and the stagnation flow model, it was found that characteristic stagnation flow can be achieved with the reactor. Furthermore, the combined stagnation flow/PLIF/modeling approach makes it possible to estimate the turnover frequency (TOF) of the catalytic surface from the measured CO2 concentration profiles above the surface and to predict the CO2, CO and O2 concentrations at the surface under reaction conditions.
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2.
  • Pfaff, Sebastian, et al. (författare)
  • Temperature characterization of an operando flow reactor for heterogeneous catalysis
  • 2019
  • Ingår i: Journal of Physics D: Applied Physics. - : IOP Publishing. - 0022-3727 .- 1361-6463. ; 52:32
  • Tidskriftsartikel (refereegranskat)abstract
    • In this work, we present several methods to determine the temperature of a catalyst sample, as well as the gas surrounding it, in a typical flow reactor used for operando research on heterogeneous catalysis. To determine the sample temperature, we present an approach using calibrated IR-camera imagery, as well as thermographic phosphors. For the gas temperature, we present methods to extract temperature information from Planar Laser Induced Fluorescence (PLIF) measurements, one of which can be used during operando studies with an active catalyst in place.
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  • Resultat 1-2 av 2
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tidskriftsartikel (2)
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refereegranskat (2)
Författare/redaktör
Pfaff, Sebastian (2)
Zetterberg, Johan (2)
Lundgren, Edvin (2)
Abou Nada, Fahed (1)
Blomberg, Sara (1)
Karlsson, Hanna (1)
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Zhou, Jianfeng (1)
Matera, Sebastian (1)
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Lunds universitet (2)
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Engelska (2)
Forskningsämne (UKÄ/SCB)
Naturvetenskap (2)
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2019 (2)Ta bort avgränsningen

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