U.S. Department of EnergyOffice of Scientific and Technical Information
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:
- Publication Date:
- Research Org.:
- GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1340532
- Patent Number(s):
- 9,553,327
- Application Number:
- 14/586,132
- Assignee:
- GM GLOBAL TECHNOLOGY OPERATIONS LLC (Detroit, MI)
- 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. 2017.
"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 = {},
url = {https://www.osti.gov/biblio/1340532},
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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