In-Situ Measurement of cPOx Catalyst in Microtubular SOFC

Lois Milner, Artur Majewski, Robert Steinberger-Wilckens

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Photoacoustic Spectroscopy (PAS) and Tuneable Diode Laser Spectroscopy (TDLS) are techniques that show promise for in-situ testing of gas compositions in Solid Oxide Fuel Cells (SOFC). Previous studies have used PAS to obtain kinetic data about catalytic reactions [1] [2]. PAS has advantages over conventional absorption based spectroscopic methods, as it does not rely on distinguishing the difference between incident and transmitted radiation. This results in a higher sensitivity. However, higher sensitivity comes at the cost of presenting a greater number of engineering hurdles.
Furthermore, miniaturisation of photoacoustic devices enhances performance, resulting in lower detection limits [3]. This unusual advantage is a result of the technique being dependent on temperature changes coupled to pressure changes; the smaller the sample cell, the stronger these two variables are related. However, miniaturisation along with hightemperature operation presents a unique set of engineering challenges. It is for this reason
that TDLS is considered as a less sensitive but less challenging device to engineer.
The aim of this work is to develop a gas characterisation device capable of operating within a microtubular fuel cell running on pre-reformed methane. The device will be located between the pre-reformer and the fuel cell (Figure 1) and deliver real time data referring to the performance of the reforming catalyst. This device will both aid catalyst development and act as a feedback mechanism to prevent cell failure from catalytic degradation. We present an introduction to the possible techniques that could be used for this application
and results which have led to the decision to take one technique forward.
Original languageEnglish
Title of host publicationProceedings of the 12th European SOFC Forum
Place of PublicationLucerne
PublisherEuropean Fuel Cell Forum
Number of pages10
ISBN (Electronic)9783905592214
Publication statusPublished - 5 Jul 2016
Event12th European SOFC Forum 2016 - KKL, Lucerne, Switzerland
Duration: 5 Jul 20168 Jul 2016


Conference12th European SOFC Forum 2016
Internet address


  • SOFC
  • Spectroscopy
  • Laser spectroscopy
  • exhaust gas
  • Gas analysis

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Energy Engineering and Power Technology
  • Control and Systems Engineering


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