Proton conducting hollow graphene oxide cylinder as molecular fuel barrier for tubular H2-air fuel cell

Thimmappa R, Chattanahalli Devendrachari M, Shafi S, Freunberger SA, Ottakam Thotiyl M. 2016. Proton conducting hollow graphene oxide cylinder as molecular fuel barrier for tubular H2-air fuel cell. International Journal of Hydrogen Energy. 41(47), 22305–22315.

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Journal Article | Published | English
Author
Thimmappa, Ravikumar; Chattanahalli Devendrachari, Mruthyunjayachari; Shafi, Shahid; Freunberger, Stefan AlexanderIST Austria ; Ottakam Thotiyl, Musthafa
Abstract
If proton exchange membrane fuel cells (PEMFC) are ever to succeed in sustainable energy landscape as a potential zero emission technology, it is inevitable to reduce electricity production cost associated mainly with its MEAs, cell hardware and gas storage units. We demonstrate a diverse strategy for achieving this target with a concomitant amplification of its specific energy and power, by rolling a thin graphene oxide (GO) based MEA alone into a tubular and air breathing architecture with internal fuel storage. The unique properties of GO being a barrier for molecular fuels and proton conducting to construct a GO based cylindrical MEA. This makes the tubular PEMFC ∼75 times lighter, featuring ∼37 and ∼92 times respectively, the power and energy per overall weight, making it a potential candidate for portable applications. The intrinsic electrochemical kinetics at the three-phase boundary are somewhat affected by the bending of the MEA, albeit at overall reduction in power production cost.
Publishing Year
Date Published
2016-12-21
Journal Title
International Journal of Hydrogen Energy
Volume
41
Issue
47
Page
22305-22315
ISSN
IST-REx-ID

Cite this

Thimmappa R, Chattanahalli Devendrachari M, Shafi S, Freunberger SA, Ottakam Thotiyl M. Proton conducting hollow graphene oxide cylinder as molecular fuel barrier for tubular H2-air fuel cell. International Journal of Hydrogen Energy. 2016;41(47):22305-22315. doi:10.1016/j.ijhydene.2016.08.057
Thimmappa, R., Chattanahalli Devendrachari, M., Shafi, S., Freunberger, S. A., & Ottakam Thotiyl, M. (2016). Proton conducting hollow graphene oxide cylinder as molecular fuel barrier for tubular H2-air fuel cell. International Journal of Hydrogen Energy. Elsevier. https://doi.org/10.1016/j.ijhydene.2016.08.057
Thimmappa, Ravikumar, Mruthyunjayachari Chattanahalli Devendrachari, Shahid Shafi, Stefan Alexander Freunberger, and Musthafa Ottakam Thotiyl. “Proton Conducting Hollow Graphene Oxide Cylinder as Molecular Fuel Barrier for Tubular H2-Air Fuel Cell.” International Journal of Hydrogen Energy. Elsevier, 2016. https://doi.org/10.1016/j.ijhydene.2016.08.057.
R. Thimmappa, M. Chattanahalli Devendrachari, S. Shafi, S. A. Freunberger, and M. Ottakam Thotiyl, “Proton conducting hollow graphene oxide cylinder as molecular fuel barrier for tubular H2-air fuel cell,” International Journal of Hydrogen Energy, vol. 41, no. 47. Elsevier, pp. 22305–22315, 2016.
Thimmappa R, Chattanahalli Devendrachari M, Shafi S, Freunberger SA, Ottakam Thotiyl M. 2016. Proton conducting hollow graphene oxide cylinder as molecular fuel barrier for tubular H2-air fuel cell. International Journal of Hydrogen Energy. 41(47), 22305–22315.
Thimmappa, Ravikumar, et al. “Proton Conducting Hollow Graphene Oxide Cylinder as Molecular Fuel Barrier for Tubular H2-Air Fuel Cell.” International Journal of Hydrogen Energy, vol. 41, no. 47, Elsevier, 2016, pp. 22305–15, doi:10.1016/j.ijhydene.2016.08.057.

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