Exclusively Proton Conductive Membranes Based on Reduced Graphene Oxide Polymer Composites

Dhanraj B. Shinde; Ivan V. Vlassiouk; Marat R. Talipov; Sergei N. Smirnov

doi:10.1021/acsnano.9b05979

Exclusively Proton Conductive Membranes Based on Reduced Graphene Oxide Polymer Composites

Dhanraj B. Shinde
, Ivan V. Vlassiouk
, Marat R. Talipov
, Sergei N. Smirnov

Functional Hybrid Nanomaterials

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

Proton exchange membranes are at the heart of various technologies utilizing electrochemical storage of intermittent energy sources and powering electrical devices. Current state of the art membranes are based on perfluorosulfonic acid, introduced more than a half century ago. Low specificity to protons accompanied by permeance by other species is one of the main impediments for various promising applications in green technologies in an energy sustainable economy. Here we present composite membranes that are exclusively proton selective and do not allow crossover of any ionic or molecular species other than protons. Membranes have high proton conductivity and exceptional mechanical and chemical stability and thus may significantly improve performance of hydrogen-based technologies such as electrolyzers, various kinds of fuel cells, and flow batteries in the future.

Original language	English
Pages (from-to)	13136-13143
Number of pages	8
Journal	ACS Nano
Volume	13
Issue number	11
DOIs	https://doi.org/10.1021/acsnano.9b05979
State	Published - Nov 26 2019

Funding

This work was partially supported by a grant from the Department of Energy (ARPA-E DE-AR0000651). A portion of this research was conducted at the Center for Nanophase Materials Sciences, which is a DOE Office of Science User Facility. XPS analysis was performed by Dr. Harry Meyer; Dr. Ilia Ivanov helped with obtaining Raman spectra, and the TGA experiment was performed by Dr. Georgios Polyzos (ORNL). Molecular dynamics simulations were performed using an Extreme Science and Engineering Discovery Environment (XSEDE) TG-CHE170004 award. We also appreciate help with SEM imaging by Dr. Manjushree Bahir (NCCS, Pune, India).

Keywords

flow batteries
fuel cells
hydrogen technologies
proton conductors
proton exchange membranes

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10.1021/acsnano.9b05979

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abstract = "Proton exchange membranes are at the heart of various technologies utilizing electrochemical storage of intermittent energy sources and powering electrical devices. Current state of the art membranes are based on perfluorosulfonic acid, introduced more than a half century ago. Low specificity to protons accompanied by permeance by other species is one of the main impediments for various promising applications in green technologies in an energy sustainable economy. Here we present composite membranes that are exclusively proton selective and do not allow crossover of any ionic or molecular species other than protons. Membranes have high proton conductivity and exceptional mechanical and chemical stability and thus may significantly improve performance of hydrogen-based technologies such as electrolyzers, various kinds of fuel cells, and flow batteries in the future.",

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AB - Proton exchange membranes are at the heart of various technologies utilizing electrochemical storage of intermittent energy sources and powering electrical devices. Current state of the art membranes are based on perfluorosulfonic acid, introduced more than a half century ago. Low specificity to protons accompanied by permeance by other species is one of the main impediments for various promising applications in green technologies in an energy sustainable economy. Here we present composite membranes that are exclusively proton selective and do not allow crossover of any ionic or molecular species other than protons. Membranes have high proton conductivity and exceptional mechanical and chemical stability and thus may significantly improve performance of hydrogen-based technologies such as electrolyzers, various kinds of fuel cells, and flow batteries in the future.

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Exclusively Proton Conductive Membranes Based on Reduced Graphene Oxide Polymer Composites

Abstract

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Keywords

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