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Title: Alternative materials for solid oxide fuel cells

Abstract

The purpose of this research is to develop alternative materials for solid oxide fuel cell (SOFC) interconnections and electrodes with improved electrical, thermal, and electrochemical properties. A second objective is to develop synthesis and fabrication methods for these materials whereby they can be processed in air into SOFCs. The approach is to (1) develop modifications of the current, state-of-the-art materials used in SOFCs, (2) minimize the number of cations used in the SOFC materials to reduce potential deleterious interactions, (3) improve thermal, electrical, and electrochemical properties, (4) develop methods to synthesize both state-of-the-art and alternative materials for the simultaneous fabrication and consolidation in air of the interconnections and electrodes with the solid electrolyte, and (5) understand electrochemical reactions at materials interfaces and the effects of component composition and processing on those reactions. This paper summarizes a comprehensive study that assessed the effect of ambient oxygen partial pressure on the stability of air-sinterable chromites and the sintering behavior of doped lanthanum manganites.

Authors:
;
Publication Date:
Research Org.:
Pacific Northwest Lab., Richland, WA (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10181035
Report Number(s):
PNL-SA-24680; CONF-940883-6
ON: DE94018452; TRN: AHC29421%%12
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Technical Report
Resource Relation:
Conference: Fuel cells `94,Morgantown, WV (United States),17-19 Aug 1994; Other Information: PBD: Aug 1994
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; 36 MATERIALS SCIENCE; SOLID ELECTROLYTE FUEL CELLS; CATHODES; CONNECTORS; MATERIALS; CHROMIUM OXIDES; SWELLING; MANGANESE OXIDES; SINTERING; LANTHANUM OXIDES; CALCIUM OXIDES; STRONTIUM OXIDES; CHEMICAL COMPOSITION; VACANCIES; ELECTRIC CONDUCTIVITY; MICROSTRUCTURE; REDOX REACTIONS; DOPED MATERIALS; EXPERIMENTAL DATA; DENSITY; PHASE STUDIES; 300503; 360200; MATERIALS, COMPONENTS, AND AUXILIARIES; CERAMICS, CERMETS, AND REFRACTORIES

Citation Formats

Stevenson, J.W., and Armstrong, T.R.. Alternative materials for solid oxide fuel cells. United States: N. p., 1994. Web. doi:10.2172/10181035.
Stevenson, J.W., & Armstrong, T.R.. Alternative materials for solid oxide fuel cells. United States. doi:10.2172/10181035.
Stevenson, J.W., and Armstrong, T.R.. Mon . "Alternative materials for solid oxide fuel cells". United States. doi:10.2172/10181035. https://www.osti.gov/servlets/purl/10181035.
@article{osti_10181035,
title = {Alternative materials for solid oxide fuel cells},
author = {Stevenson, J.W. and Armstrong, T.R.},
abstractNote = {The purpose of this research is to develop alternative materials for solid oxide fuel cell (SOFC) interconnections and electrodes with improved electrical, thermal, and electrochemical properties. A second objective is to develop synthesis and fabrication methods for these materials whereby they can be processed in air into SOFCs. The approach is to (1) develop modifications of the current, state-of-the-art materials used in SOFCs, (2) minimize the number of cations used in the SOFC materials to reduce potential deleterious interactions, (3) improve thermal, electrical, and electrochemical properties, (4) develop methods to synthesize both state-of-the-art and alternative materials for the simultaneous fabrication and consolidation in air of the interconnections and electrodes with the solid electrolyte, and (5) understand electrochemical reactions at materials interfaces and the effects of component composition and processing on those reactions. This paper summarizes a comprehensive study that assessed the effect of ambient oxygen partial pressure on the stability of air-sinterable chromites and the sintering behavior of doped lanthanum manganites.},
doi = {10.2172/10181035},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Aug 01 00:00:00 EDT 1994},
month = {Mon Aug 01 00:00:00 EDT 1994}
}

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