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Application of a GaPO4 crystal microbalance for the detection of coke formation in high temperature reactors and solid oxide fuel cells.

Millichamp, J*; Ali, E*; Brandon, N P*; Brown, R J C; Hodgson, D*; Kalyvas, C*; Manos, G*; Brett, D J L* (2011) Application of a GaPO4 crystal microbalance for the detection of coke formation in high temperature reactors and solid oxide fuel cells. Indust. Eng. Chem. Res., 50 (13). pp. 8371-8375.

Full text not available from this repository.

Abstract

Piezoelectric crystal microbalance devices based on gallium orthophosphate (GaPO4) have recently become commercially available. This material allows for operation to over 900 °C and has potential as an analytical technique for the study of surface reactions at high temperatures. This paper describes preliminary work to assess the suitability of this technology for such applications. Change in oscillation frequency associated with temperature and gaseous environment is studied and the ability to detect coke formation on a Ni-modified crystal is demonstrated. These results suggest that the technology can be developed as a low cost, high sensitivity gravimetric sensor for monitoring surface processes in high temperature chemical reactors such as solid oxide fuel cells (SOFCs).

Item Type: Article
Keywords: Sensor, coke, fuel cell, nickel coating, piezoelectric
Subjects: Analytical Science
Analytical Science > Trace Analysis and Electrochemistry
Identification number/DOI: 10.1021/ie200188z
Last Modified: 23 Jul 2018 14:10
URI: http://eprintspublications.npl.co.uk/id/eprint/5183

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