Abstract
Catalytic oxidation reaction monitoring has been performed for the first time with a trace gas carbon dioxide analyser based on a continuous wave (cw), thermoelectrically cooled (TEC), distributed feedback (DFB) quantum cascade laser (QCL) operating at around 2307 cm-1. The reaction kinetics for carbon monoxide oxidation over a platinum catalyst supported on yttria-stabilised zirconia were followed by the QCL CO2 analyser and showed that it is a powerful new tool for measuring low reaction rates associated with low surface area model catalysts operating at atmospheric pressures. A detection limit was determined of 40 ppb (1 standard deviation) for a 0.1 s average and a residual absorption standard deviation of 1.9×10-4.
Original language | English |
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Pages (from-to) | 263-269 |
Number of pages | 7 |
Journal | Applied Physics B - Lasers and Optics |
Volume | 110 |
Issue number | 2 |
DOIs | |
Publication status | Published - Feb 2013 |
ASJC Scopus subject areas
- General Physics and Astronomy
- Physics and Astronomy (miscellaneous)