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The Nature of Proton Shuttling in Protic Ionic Liquid Fuel Cells

The Nature of Proton Shuttling in Protic Ionic Liquid Fuel Cells It has been proposed previously that protic ionic liquids (PILs) such as diethylmethylammonium triflate could be used as the electrolytes in nonhumidified, intermediate temperature H2 fuel cells, potentially offering the prospect of high conductivity and performance, even under anhydrous conditions. In this contribution, a combination of electroanalytical chemistry and fuel‐cell polarization analyses is used to demonstrate for the first time that the pure PILs cannot support proton shuttling between the electrodes of fuel cells. Only through the inclusion of dissolved acidic or basic proton shuttles can viable protic ionic fuel cells be fabricated, which has major consequences for the use of these neoteric electrolytes in fuel cells. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Advanced Energy Materials Wiley

The Nature of Proton Shuttling in Protic Ionic Liquid Fuel Cells

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References (37)

Publisher
Wiley
Copyright
© 2019 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
ISSN
1614-6832
eISSN
1614-6840
DOI
10.1002/aenm.201900744
Publisher site
See Article on Publisher Site

Abstract

It has been proposed previously that protic ionic liquids (PILs) such as diethylmethylammonium triflate could be used as the electrolytes in nonhumidified, intermediate temperature H2 fuel cells, potentially offering the prospect of high conductivity and performance, even under anhydrous conditions. In this contribution, a combination of electroanalytical chemistry and fuel‐cell polarization analyses is used to demonstrate for the first time that the pure PILs cannot support proton shuttling between the electrodes of fuel cells. Only through the inclusion of dissolved acidic or basic proton shuttles can viable protic ionic fuel cells be fabricated, which has major consequences for the use of these neoteric electrolytes in fuel cells.

Journal

Advanced Energy MaterialsWiley

Published: Jun 1, 2019

Keywords: ; ; ;

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