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Enhancement of ‘dry’ proton conductivity by self-assembled nanochannels in all-solid polyelectrolytes

Shah, Azhar Hussain, Li, Jiaye, Yang, Hengrui, Ali Rana, Usman, Ranganathan, Vijayaraghavan, Siddigi, Humaira M., MacFarlane, Douglas R., Forsyth, Maria and Zhu, Haijin 2016, Enhancement of ‘dry’ proton conductivity by self-assembled nanochannels in all-solid polyelectrolytes, Journal of material chemistry A, vol. 4, no. 20, pp. 7615-7623, doi: 10.1039/C6TA00368K.

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Title Enhancement of ‘dry’ proton conductivity by self-assembled nanochannels in all-solid polyelectrolytes
Author(s) Shah, Azhar Hussain
Li, Jiaye
Yang, Hengrui
Ali Rana, Usman
Ranganathan, Vijayaraghavan
Siddigi, Humaira M.
MacFarlane, Douglas R.
Forsyth, MariaORCID iD for Forsyth, Maria orcid.org/0000-0002-4273-8105
Zhu, HaijinORCID iD for Zhu, Haijin orcid.org/0000-0001-6352-7633
Journal name Journal of material chemistry A
Volume number 4
Issue number 20
Start page 7615
End page 7623
Total pages 9
Publisher Royal Society of Chemistry
Place of publication London, Eng.
Publication date 2016
ISSN 2050-7488
2050-7496
Keyword(s) Science & Technology
Physical Sciences
Technology
Chemistry, Physical
Energy & Fuels
Materials Science, Multidisciplinary
Chemistry
Materials Science
POLYMER ELECTROLYTE MEMBRANES
SPIN-DIFFUSION
HETEROGENEOUS POLYMERS
TRANSPORT BEHAVIOR
PLASTIC CRYSTAL
DOMAIN SIZES
FUEL-CELLS
STATE NMR
TEMPERATURE
ACID
Summary Proton transport has been recognized as an essential process in many biological systems, as well as electrochemical devices including fuel cells and redox flow batteries. In the present study, we address the pressing need for solvent-free proton conducting polymer electrolytes for high-temperature PEM fuel cell applications by developing a novel all-solid polyelectrolyte membrane with a self-assembled proton-channel structure. We show that this self-assembled nanostructure endows the material with exciting ‘dry’ proton conductivity at elevated temperatures, as high as 0.3 mS cm−1 at 120 °C, making it an attractive candidate for high-temperature PEM fuel cell applications. Based on the combined investigation of solid-state NMR, FTIR and conductivity measurements, we propose that both molecular design and nano-scale structures are essential for obtaining highly conductive anhydrous proton conductors.
Language eng
DOI 10.1039/C6TA00368K
Field of Research 030304 Physical Chemistry of Materials
030604 Electrochemistry
Socio Economic Objective 850401 Fuel Cells (excl. Solid Oxide)
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, Royal Society of Chemistry
Persistent URL http://hdl.handle.net/10536/DRO/DU:30083133

Document type: Journal Article
Collection: Institute for Frontier Materials
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