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Title: Development of high performance proton-conducting solid electrolytes

Abstract

This work seeks to improve the efficiency of fuel cell and electrolyzer operation by developing solid electrolytes that will function at higher temperatures. Two objectives were pursued: (1) determine the mechanism of hydrolytic decomposition of aromatic sulfonic acid ionomers, with the intent of identifying structural weaknesses that can be avoided in future materials; and (2) identify new directions in solid electrolyte development. After evaluating a number of aromatic sulfonates, it became apparent that no common mechanism was going to be found; instead, each polymer had its own sequence of degradation steps, involving some combination of desulfonation and/or chain scission. For electrochemical cell operation at temperatures > 200 C, it will be necessary to develop solid electrolytes that do not require sulfonic acids and do not require water to maintain its conductivity mechanism.

Authors:
;  [1]
  1. Florida Solar Energy Center, Cocoa, FL (United States)
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
305603
Report Number(s):
NREL/CP-570-25315-Vol.1; CONF-980440-Vol.1
ON: DE98007507; TRN: IM9906%%283
Resource Type:
Conference
Resource Relation:
Conference: US DOE hydrogen program technical review meeting, Alexandria, VA (United States), 28-30 Apr 1998; Other Information: PBD: Aug 1998; Related Information: Is Part Of Proceedings of the 1998 U.S. DOE Hydrogen Program Review: Volume 1; PB: 425 p.
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; 08 HYDROGEN FUEL; SOLID ELECTROLYTE FUEL CELLS; HYDROGEN PRODUCTION; ELECTROLYSIS; SOLID ELECTROLYTES; IONIC CONDUCTIVITY; HYDROGEN GENERATORS; SULFONIC ACIDS; ORGANIC POLYMERS; DECOMPOSITION

Citation Formats

Linkous, C A, and Kopitzke, R W. Development of high performance proton-conducting solid electrolytes. United States: N. p., 1998. Web.
Linkous, C A, & Kopitzke, R W. Development of high performance proton-conducting solid electrolytes. United States.
Linkous, C A, and Kopitzke, R W. 1998. "Development of high performance proton-conducting solid electrolytes". United States. https://www.osti.gov/servlets/purl/305603.
@article{osti_305603,
title = {Development of high performance proton-conducting solid electrolytes},
author = {Linkous, C A and Kopitzke, R W},
abstractNote = {This work seeks to improve the efficiency of fuel cell and electrolyzer operation by developing solid electrolytes that will function at higher temperatures. Two objectives were pursued: (1) determine the mechanism of hydrolytic decomposition of aromatic sulfonic acid ionomers, with the intent of identifying structural weaknesses that can be avoided in future materials; and (2) identify new directions in solid electrolyte development. After evaluating a number of aromatic sulfonates, it became apparent that no common mechanism was going to be found; instead, each polymer had its own sequence of degradation steps, involving some combination of desulfonation and/or chain scission. For electrochemical cell operation at temperatures > 200 C, it will be necessary to develop solid electrolytes that do not require sulfonic acids and do not require water to maintain its conductivity mechanism.},
doi = {},
url = {https://www.osti.gov/biblio/305603}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Aug 01 00:00:00 EDT 1998},
month = {Sat Aug 01 00:00:00 EDT 1998}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

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