Grafted functional groups on expanded tetrafluoroethylene (ePTFE) support for fuel cell and water transport membranes
Abstract
A method for forming a modified solid polymer includes a step of contacting a solid fluorinated polymer with a sodium sodium-naphthalenide solution to form a treated fluorinated solid polymer. The treated fluorinated solid polymer is contacted with carbon dioxide, sulfur dioxide, or sulfur trioxide to form a solid grafted fluorinated polymer. Characteristically, the grafted fluorinated polymer includes appended CO.sub.2H or SO.sub.2H or SO.sub.3H groups. The solid grafted fluorinated polymer is advantageously incorporated into a fuel cell as part of the ion-conducting membrane or a water transport membrane in a humidifier.
- Inventors:
- Issue Date:
- Research Org.:
- GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1340532
- Patent Number(s):
- 9553327
- Application Number:
- 14/586,132
- Assignee:
- GM GLOBAL TECHNOLOGY OPERATIONS LLC (Detroit, MI)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08J - WORKING-UP
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- DOE Contract Number:
- EE0000470
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2014 Dec 30
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Fuller, Timothy J., and Jiang, Ruichun. Grafted functional groups on expanded tetrafluoroethylene (ePTFE) support for fuel cell and water transport membranes. United States: N. p., 2017.
Web.
Fuller, Timothy J., & Jiang, Ruichun. Grafted functional groups on expanded tetrafluoroethylene (ePTFE) support for fuel cell and water transport membranes. United States.
Fuller, Timothy J., and Jiang, Ruichun. Tue .
"Grafted functional groups on expanded tetrafluoroethylene (ePTFE) support for fuel cell and water transport membranes". United States. https://www.osti.gov/servlets/purl/1340532.
@article{osti_1340532,
title = {Grafted functional groups on expanded tetrafluoroethylene (ePTFE) support for fuel cell and water transport membranes},
author = {Fuller, Timothy J. and Jiang, Ruichun},
abstractNote = {A method for forming a modified solid polymer includes a step of contacting a solid fluorinated polymer with a sodium sodium-naphthalenide solution to form a treated fluorinated solid polymer. The treated fluorinated solid polymer is contacted with carbon dioxide, sulfur dioxide, or sulfur trioxide to form a solid grafted fluorinated polymer. Characteristically, the grafted fluorinated polymer includes appended CO.sub.2H or SO.sub.2H or SO.sub.3H groups. The solid grafted fluorinated polymer is advantageously incorporated into a fuel cell as part of the ion-conducting membrane or a water transport membrane in a humidifier.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 24 00:00:00 EST 2017},
month = {Tue Jan 24 00:00:00 EST 2017}
}
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