the h2o2 reaction on a palladium model catalyst studied with laser-induced fluorescence and microcalorimetry过氧化氢的反应在催化剂钯模型研究了激光诱导荧光和微量热法.pdfVIP

Int. J. Mol. Sci. 2001, 2, 221-229 International Journal of Molecular Sciences ISSN 1422-0067 © 2001 by MDPI /ijms/ The H /O Reaction on a Palladium Model Catalyst Studied with 2 2 Laser-Induced Fluorescence and Microcalorimetry Åsa Johansson*, Michael Försth and Arne Rosén Department of Experimental Physics, School of Physics and Engineering Physics Göteborg University and Chalmers University of Technology SE-412 96 Göteborg, Sweden Telephone +46 31 7723296, Facsimile +46 31 7723496 URL: http://fy.chalmers.se/f3c *Email: asa@fy.chalmers.se *Author to whom correspondence should be addressed. Received: 28 September 2001 / Accepted: 6 November 2001 / Published: 13 November 2001 Abstract: The H /O reaction on a polycrystalline palladium foil has been studied. The ex- 2 2 perimental 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% H and the OH desorption has its maximum at 10% H at a total 2 2, 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 producti