A polybenzimidazole/ionic-liquid-graphite-oxide composite membrane for high temperature polymer electrolyte membrane fuel cells

Xu, Chenxi, Liu, Xiaoteng, Cheng, Jigui and Scott, Keith (2015) A polybenzimidazole/ionic-liquid-graphite-oxide composite membrane for high temperature polymer electrolyte membrane fuel cells. Journal of Power Sources, 274. pp. 922-927. ISSN 0378-7753

Full text not available from this repository.
Official URL: https://doi.org/10.1016/j.jpowsour.2014.10.134

Abstract

Graphite oxide is successfully functionalised by 3-aminopropyltriethoxysilane ionic liquid and used as a filler material in a polybenzimidazole (PBI) membrane for high temperature proton exchange membrane fuel cells. The ionic-liquid-graphite-oxide/polybenzimidazole (ILGO/PBI) composite membrane exhibits an appropriate level of proton conductivity when imbibed with phosphoric acid at low phosphoric acid loading, which promotes its use in fuel cells by avoiding acid leakage and materials corrosion. The ionic conductivities of the ILGO/PBI membranes at 175 °C are 0.035 S cm−1 and 0.025 S cm−1 at per repeat units of 3.5 and 2.0, respectively. The fuel cell performance of ILGO/PBI membranes exhibits a maximum power density of 320 mW cm−2 at 175 °C, which is higher than that of a pristine PBI membrane.

Item Type: Article
Uncontrolled Keywords: Ionic liquid graphite oxide, Polybenzimidazole, Polymer electrolyte membrane fuel cells
Subjects: H800 Chemical, Process and Energy Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Becky Skoyles
Date Deposited: 13 Aug 2018 12:20
Last Modified: 10 Oct 2019 18:00
URI: http://nrl.northumbria.ac.uk/id/eprint/35293

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