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Issue 36, 2019
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Stable functionalized graphene oxide–cellulose nanofiber solid electrolytes with long-range 1D/2D ionic nanochannels

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Abstract

Solid electrolytes which could transport cations are widely used in energy-related and environmental applications. Herein, functionalized graphene oxide–cellulose nanofiber solid proton electrolytes (NPGOM-CNF) are successfully prepared. Based on 1D CNF and 2D dopamine-functionalized GO (NPGO), long-range 1D and 2D ionic nanochannels are constructed in the membranes with perfluorinated sulfonic acid resin (PFSA). The proton conductivity of NPGOM-10-CNF is as high as 0.4 S cm−1 at 80 °C and 95% RH, two times higher than that of commercialized Nafion117. The single-cell performance of the NPGOM-10-CNF-based MEA is 31% higher than that of the Nafion117-based MEA at 60 °C and 100% RH on account of higher proton conductivities and better H2 impedance ability. Besides, NPGOM-CNF membranes also possess outstanding stability in water and high methanol barrier performance, demonstrating great practical application potential.

Graphical abstract: Stable functionalized graphene oxide–cellulose nanofiber solid electrolytes with long-range 1D/2D ionic nanochannels

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Supplementary files

Article information


Submitted
21 Jul 2019
Accepted
20 Aug 2019
First published
20 Aug 2019

J. Mater. Chem. A, 2019,7, 20871-20877
Article type
Paper

Stable functionalized graphene oxide–cellulose nanofiber solid electrolytes with long-range 1D/2D ionic nanochannels

W. Jia and P. Wu, J. Mater. Chem. A, 2019, 7, 20871
DOI: 10.1039/C9TA07883E

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