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Title: Phosphonated polymers, and methods of production thereof, for use as polymer electrolyte membranes (PEMs) and/or catalyst ionomeric binders for electrodes in PEM fuel cells

Abstract

The present disclosure provides phosphonated polymers that can be used, for example, as polymer electrolyte membranes (PEMs) and/or catalyst ionomeric binders for electrodes in PEM fuel cells, and more particularly for high-temperature PEM fuel cells. High-temperature PEM fuel cells that use phosphonated polymers of the present disclosure suffer from reduced or no acid leaching because, in at least some examples, phosphonic acid moieties are covalently bound to the backbone of the polymers. A phosphonated polymer include a backbone having one or more aromatic monomers, with each aromatic monomer having one or more phosphonic acid groups. A phosphonic acid group may include phosphonic acid or a functional group that is hydrolysable into phosphonic acid.

Inventors:
;
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1892941
Patent Number(s):
11,335,932
Application Number:
16/869,885
Assignee:
Triad National Security, LLC (Los Alamos, NM)
DOE Contract Number:  
89233218CNA000001
Resource Type:
Patent
Resource Relation:
Patent File Date: 05/08/2020
Country of Publication:
United States
Language:
English

Citation Formats

Park, Eun Joo, and Kim, Yu Seung. Phosphonated polymers, and methods of production thereof, for use as polymer electrolyte membranes (PEMs) and/or catalyst ionomeric binders for electrodes in PEM fuel cells. United States: N. p., 2022. Web.
Park, Eun Joo, & Kim, Yu Seung. Phosphonated polymers, and methods of production thereof, for use as polymer electrolyte membranes (PEMs) and/or catalyst ionomeric binders for electrodes in PEM fuel cells. United States.
Park, Eun Joo, and Kim, Yu Seung. 2022. "Phosphonated polymers, and methods of production thereof, for use as polymer electrolyte membranes (PEMs) and/or catalyst ionomeric binders for electrodes in PEM fuel cells". United States. https://www.osti.gov/servlets/purl/1892941.
@article{osti_1892941,
title = {Phosphonated polymers, and methods of production thereof, for use as polymer electrolyte membranes (PEMs) and/or catalyst ionomeric binders for electrodes in PEM fuel cells},
author = {Park, Eun Joo and Kim, Yu Seung},
abstractNote = {The present disclosure provides phosphonated polymers that can be used, for example, as polymer electrolyte membranes (PEMs) and/or catalyst ionomeric binders for electrodes in PEM fuel cells, and more particularly for high-temperature PEM fuel cells. High-temperature PEM fuel cells that use phosphonated polymers of the present disclosure suffer from reduced or no acid leaching because, in at least some examples, phosphonic acid moieties are covalently bound to the backbone of the polymers. A phosphonated polymer include a backbone having one or more aromatic monomers, with each aromatic monomer having one or more phosphonic acid groups. A phosphonic acid group may include phosphonic acid or a functional group that is hydrolysable into phosphonic acid.},
doi = {},
url = {https://www.osti.gov/biblio/1892941}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 17 00:00:00 EDT 2022},
month = {Tue May 17 00:00:00 EDT 2022}
}

Works referenced in this record:

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Ionically Conductive Polymers For Use In Fuel Cells
patent-application, March 2009


Preparation of polymer electrolyte membranes based on poly(phenylene oxide) with different side chain lengths of phosphonic acid
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Phosphonic acid functionalized poly(pentafluorostyrene) as polyelectrolyte membrane for fuel cell application
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Poly(1,3-phenylene-5-phosphonic Acid), a Fully Aromatic Polyelectrolyte with High Ion Exchange Capacity
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