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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 / Jason Millichamp in Industrial & engineering chemistry research, Vol. 50 N° 13 (Juillet 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 13 (Juillet 2011) . - pp. 8371-8375 Titre : Application of a GaPO4 crystal microbalance for the detection of coke formation in high-temperature reactors and solid oxide fuel cells Type de document : texte imprimé Auteurs : Jason Millichamp, Auteur ; Ebrahim Ali, Auteur ; Nigel P. Brandon, Auteur Année de publication : 2011 Article en page(s) : pp. 8371-8375 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Solid  oxide  fuel  cell  Reactor  Coke  deposition Résumé : Piezoelectric crystal microbalance devices based on gallium orthophosphate (GaPO4) have recently become commercially available. This material allows for operation at over 900 °C and therefore 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 reformers and solid oxide fuel cells (SOFCs). DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24332164 [article] Application of a GaPO4 crystal microbalance for the detection of coke formation in high-temperature reactors and solid oxide fuel cells [texte imprimé] / Jason Millichamp, Auteur ; Ebrahim Ali, Auteur ; Nigel P. Brandon, Auteur . - 2011 . - pp. 8371-8375. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 13 (Juillet 2011) . - pp. 8371-8375 Mots-clés : Solid  oxide  fuel  cell  Reactor  Coke  deposition Résumé : Piezoelectric crystal microbalance devices based on gallium orthophosphate (GaPO4) have recently become commercially available. This material allows for operation at over 900 °C and therefore 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 reformers and solid oxide fuel cells (SOFCs). DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24332164