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

Lookup NU author(s): Dr Danai Poulidi, Mas Jalil, Professor Ian Metcalfe

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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 1.9x10(-4).

Publication metadata

Author(s): Kasyutich VL, Poulidi D, Jalil M, Metcalfe IS, Martin PA

Publication type: Article

Publication status: Published

Journal: Applied Physics B

Year: 2013

Volume: 110

Issue: 2

Pages: 263-269

Print publication date: 01/02/2013

Online publication date: 06/09/2012

Date deposited: 25/10/2014

ISSN (print): 0946-2171

ISSN (electronic): 1432-0649

Publisher: Springer

URL: http://dx.doi.org/10.1007/s00340-012-5154-y

DOI: 10.1007/s00340-012-5154-y

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