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Direct oxidation alkaline fuel cells: from materials to systems

Lookup NU author(s): Dr Eileen Yu, Xu Wang, Dr Lei Li, Professor Keith Scott

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Abstract

Direct oxidation alkaline fuel cells (DOAFCs) possess particular advantages on the possibility of employing low cost non-noble metal catalysts. A wide range of fuels can be used due to superior reaction kinetics in alkaline media. The development of DOAFCs was hindered by the carbonation of electrolyte due to the presence of CO2. The application of the anion exchange membrane (AEM) provides the possibility of reducing the effect of carbonation and fuel crossover which is an issue in the proton exchange membrane fuel cells (PEMFCs). The latest developments in alkaline fuel cells are examined in this paper, considering different types of fuels, novel catalysts and anion exchange membranes. Moreover, alkaline fuel cell systems and configurations are studied, particularly the new designs for portable or microelectronic devices. Further development of DOAFCs will rely on novel AEMs with good ionic conductivity and stability, low cost non-Pt catalysts with high activity and good stability for various fuels and oxidant. We envisage that DOAFCs will play a major role in energy research and applications in the near future.


Publication metadata

Author(s): Yu EH, Wang X, Krewer U, Li L, Scott K

Publication type: Article

Publication status: Published

Journal: Energy & Environmental Science

Year: 2012

Volume: 5

Issue: 2

Pages: 5668-5680

Print publication date: 20/12/2011

ISSN (print): 1754-5692

ISSN (electronic): 1754-5706

Publisher: Royal Society of Chemistry

URL: http://dx.doi.org/10.1039/c2ee02552c

DOI: 10.1039/c2ee02552c


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