Alumina-carbon nanofibers nanocomposites obtained by spark plasma sintering for proton exchange membrane fuel cell bipolar plates

Borrell, A., Torrecillas, R., Garcia Rocha, Victoria ORCID: https://orcid.org/0000-0001-6125-8556 and Fernández, A. 2012. Alumina-carbon nanofibers nanocomposites obtained by spark plasma sintering for proton exchange membrane fuel cell bipolar plates. Fuel Cells 12 (4) , pp. 599-605. 10.1002/fuce.201100042

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Abstract

There is an increasing demand of multifunctional materials for a wide variety of technological developments. Bipolar plates for proton exchange membrane fuel cells are an example of complex functionality components that must show among other properties high mechanical strength, electrical, and thermal conductivity. The present research explored the possibility of using alumina–carbon nanofibers (CNFs) nanocomposites for this purpose. In this study, it was studied for the first time the whole range of powder compositions in this system. Homogeneous powders mixtures were prepared and subsequently sintered by spark plasma sintering. The materials obtained were thoroughly characterized and compared in terms of properties required to be used as bipolar plates. The control on material microstructure and composition allows designing materials where mechanical or electrical performances are enhanced. A 50/50 vol.% alumina–CNFs composite appears to be a very promising material for this kind of application.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Engineering
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Uncontrolled Keywords:	Bipolar Plates; Carbon Nanofibers; Nanocomposites; Spark Plasma Sintering
Publisher:	Wiley
ISSN:	1615-6846
Date of Acceptance:	19 May 2011
Last Modified:	01 Nov 2022 10:57
URI:	https://orca.cardiff.ac.uk/id/eprint/93346

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