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Selective Laser-Induced Heterogeneous Chemistry on Surfaces

  • C. T. Lin
Conference paper
Part of the Springer Series in Chemical Physics book series (CHEMICAL, volume 39)

Abstract

The effects of laser radiation on the heterogeneous catalytic processes depend upon the nature of the surfaces, the electronic and vibrational structures of the adspecies/surface system, and the characteristics of the laser beam. Depending upon the chemical and physical states of the excited species, there are several ways in which laser radiation can influence the heterogeneous processes. In the past few years, at least three types of laser-stimulated surface processes have been reported: 1) laser excitation of reactants in the gas phase located in the volume above the surface. The laser radiation was used to overcome or compensate the reaction barrier, thus the rate of laser-catalyst chemistry was enhanced [1–3]; 2) Laser excitation of reactants adsorbed on a solid surface. Djidjoev et al.[4] showed that the actions of laser radiation on the adsorbed molecules, such as hydroxyl groups and amino groups NH2 and NH on silica surfaces, are quite different from oven heating.

Keywords

Laser Power Density Heterogeneous Catalytic Process Vibronic Band Niobium Metal Niobium Surface 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1984

Authors and Affiliations

  • C. T. Lin
    • 1
  1. 1.Instituto de QuímicaUniversidade Estadual de CampinasCampinasBrazil

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