The H2/O2 Reaction on a Palladium Model Catalyst Studied with Laser-Induced Fluorescence and Microcalorimetry

The H2/O2 Reaction on a Palladium Model Catalyst Studied with Laser-Induced Fluorescence and Microcalorimetry

The H2/O2 reaction on a polycrystalline palladium foil has been studied. The experimental methods used were Laser-Induced Fluorescence (LIF) and microcalorimetry. The reaction was also simulated with the Chemkin software package. The water production maximum occurs at 40% H2 and the OH desorption ha...

Full description

Bibliographic Details
Main Authors: Arne Rosén, Michael Försth, Åsa Johansson
Format: Article
Language:English
Published: MDPI AG 2001-11-01
Series:International Journal of Molecular Sciences
Subjects:
Heterogeneous catalysis
palladium
water formation
Laser-Induced Fluorescence
sticking coefficient
Online Access:http://www.mdpi.com/1422-0067/2/5/221/
id doaj-eefc94c8650447bbaed81e044d28b01c
record_format Article
spelling doaj-eefc94c8650447bbaed81e044d28b01c2020-11-24T21:55:35ZengMDPI AGInternational Journal of Molecular Sciences1422-00672001-11-012522122910.3390/i2050221The H2/O2 Reaction on a Palladium Model Catalyst Studied with Laser-Induced Fluorescence and MicrocalorimetryArne RosénMichael FörsthÅsa JohanssonThe H2/O2 reaction on a polycrystalline palladium foil has been studied. The experimental methods used were Laser-Induced Fluorescence (LIF) and microcalorimetry. The reaction was also simulated with the Chemkin software package. The water production maximum occurs at 40% H2 and the OH desorption has its maximum at 10% H2, at a total pressure of 100 mTorr (13 Pa) and a catalyst temperature of 1300 K. It is concluded, in agreement with the simulations, that the main water-forming reaction at these experimental conditions is OH+H→H2O. From the water production maximum the quotient of the initial sticking coefficient for hydrogen and oxygen (SH2(0)/SO2(0)) is calculated to be 0.75(±0.1).http://www.mdpi.com/1422-0067/2/5/221/Heterogeneous catalysispalladiumwater formationLaser-Induced Fluorescencesticking coefficient
collection DOAJ
language English
format Article
sources DOAJ
author Arne Rosén
Michael Försth
Åsa Johansson
spellingShingle Arne Rosén
Michael Försth
Åsa Johansson
The H2/O2 Reaction on a Palladium Model Catalyst Studied with Laser-Induced Fluorescence and Microcalorimetry
International Journal of Molecular Sciences
Heterogeneous catalysis
palladium
water formation
Laser-Induced Fluorescence
sticking coefficient
author_facet Arne Rosén
Michael Försth
Åsa Johansson
author_sort Arne Rosén
title The H2/O2 Reaction on a Palladium Model Catalyst Studied with Laser-Induced Fluorescence and Microcalorimetry
title_short The H2/O2 Reaction on a Palladium Model Catalyst Studied with Laser-Induced Fluorescence and Microcalorimetry
title_full The H2/O2 Reaction on a Palladium Model Catalyst Studied with Laser-Induced Fluorescence and Microcalorimetry
title_fullStr The H2/O2 Reaction on a Palladium Model Catalyst Studied with Laser-Induced Fluorescence and Microcalorimetry
title_full_unstemmed The H2/O2 Reaction on a Palladium Model Catalyst Studied with Laser-Induced Fluorescence and Microcalorimetry
title_sort h2/o2 reaction on a palladium model catalyst studied with laser-induced fluorescence and microcalorimetry
publisher MDPI AG
series International Journal of Molecular Sciences
issn 1422-0067
publishDate 2001-11-01
description The H2/O2 reaction on a polycrystalline palladium foil has been studied. The experimental methods used were Laser-Induced Fluorescence (LIF) and microcalorimetry. The reaction was also simulated with the Chemkin software package. The water production maximum occurs at 40% H2 and the OH desorption has its maximum at 10% H2, at a total pressure of 100 mTorr (13 Pa) and a catalyst temperature of 1300 K. It is concluded, in agreement with the simulations, that the main water-forming reaction at these experimental conditions is OH+H→H2O. From the water production maximum the quotient of the initial sticking coefficient for hydrogen and oxygen (SH2(0)/SO2(0)) is calculated to be 0.75(±0.1).
topic Heterogeneous catalysis
palladium
water formation
Laser-Induced Fluorescence
sticking coefficient
url http://www.mdpi.com/1422-0067/2/5/221/
work_keys_str_mv AT arnerosaƒan theh2o2reactiononapalladiummodelcatalyststudiedwithlaserinducedfluorescenceandmicrocalorimetry
AT michaelfaƒarsth theh2o2reactiononapalladiummodelcatalyststudiedwithlaserinducedfluorescenceandmicrocalorimetry
AT aƒasajohansson theh2o2reactiononapalladiummodelcatalyststudiedwithlaserinducedfluorescenceandmicrocalorimetry
AT arnerosaƒan h2o2reactiononapalladiummodelcatalyststudiedwithlaserinducedfluorescenceandmicrocalorimetry
AT michaelfaƒarsth h2o2reactiononapalladiummodelcatalyststudiedwithlaserinducedfluorescenceandmicrocalorimetry
AT aƒasajohansson h2o2reactiononapalladiummodelcatalyststudiedwithlaserinducedfluorescenceandmicrocalorimetry
_version_ 1725861615711027200

Similar Items