In-situ investigation of catalytic reactions with second harmonic generation

Frank Eisert; Alf-Peter C. Elg; Arne Rosen

doi:10.1117/12.307126

30 April 1998 In-situ investigation of catalytic reactions with second harmonic generation

Frank Eisert, Alf-Peter C. Elg, Arne Rosen

Proceedings Volume 3272, Laser Techniques for Surface Science III; (1998) https://doi.org/10.1117/12.307126
Event: Optoelectronics and High-Power Lasers and Applications, 1998, San Jose, CA, United States

Abstract

Most knowledge on catalytic reaction mechanisms has up until now been gathered with UHV-based techniques. The extrapolation of such obtained reaction parameters to the pressure range of real application conditions is called the pressure gap. The nonlinear optical technique Second Harmonic Generation (SHG) allows studies covering the whole pressure range between UHV and application pressures. Of special importance for this purpose is the possibility to distinguish coverages of different adsorbates. In this work we show how the application of phase sensitive SHG can be used to determine coverages of different adsorbates in-situ allowing the determination of important reaction parameters. Our choice of reaction is the catalytic water formation on platinum which is already widely investigated in the literature.

Citation Download Citation

Frank Eisert, Alf-Peter C. Elg, and Arne Rosen "In-situ investigation of catalytic reactions with second harmonic generation", Proc. SPIE 3272, Laser Techniques for Surface Science III, (30 April 1998); https://doi.org/10.1117/12.307126

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