Application of a cw quantum cascade laser CO2 analyser to catalytic oxidation reaction monitoring

V. L. Kasyutich, D. Poulidi, M. Jalil, I. S. Metcalfe, P. A. Martin*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

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 languageEnglish
Pages (from-to)263-269
Number of pages7
JournalApplied Physics B - Lasers and Optics
Volume110
Issue number2
DOIs
Publication statusPublished - Feb 2013

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physics and Astronomy (miscellaneous)

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