Conductive ceramic composition and method of preparation

Title: Conductive ceramic composition and method of preparation

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Abstract

A ceramic anode composition is formed of a multivalent metal oxide or oxygenate such as an alkali metal, transition metal oxygenate. The anode is prepared as a non-stoichiometric crystalline structure by reaction and conditioning in a hydrogen gas cover containing minor proportions of carbon dioxide and water vapor. The structure exhibits a single phase and substantially enhanced electrical conductivity over that of the corresponding stoichiometric structure. Unexpectedly, such oxides and oxygenates are found to be stable in the reducing anode fuel gas of a molten carbonate fuel cell.

Inventors:

Smith, James L ^[1]; Kucera, Eugenia H ^[2]

Lemont, IL
Downers Grove, IL

Issue Date:: 1991-01-01

Research Org.:: Argonne National Laboratory (ANL), Argonne, IL

OSTI Identifier:: 867779

Patent Number(s):: 5008163

Assignee:: United States of America as represented by United States (Washington, DC)

DOE Contract Number:: W-31109-ENG-38

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: conductive; ceramic; composition; method; preparation; anode; formed; multivalent; metal; oxide; oxygenate; alkali; transition; prepared; non-stoichiometric; crystalline; structure; reaction; conditioning; hydrogen; gas; cover; containing; minor; proportions; carbon; dioxide; water; vapor; exhibits; single; phase; substantially; enhanced; electrical; conductivity; corresponding; stoichiometric; unexpectedly; oxides; oxygenates; found; stable; reducing; fuel; molten; carbonate; cell; fuel cell; substantially enhanced; ceramic composition; hydrogen gas; water vapor; fuel gas; carbon dioxide; alkali metal; metal oxide; transition metal; carbonate fuel; electrical conductivity; molten carbonate; single phase; crystalline structure; conductive ceramic; structure exhibits; multivalent metal; minor proportions; enhanced electrical; minor proportion; metal oxygen; metal oxygenate; anode composition; line structure; /429/252/423/501/502/

Citation Formats


                    Smith, James L, and Kucera, Eugenia H. Conductive ceramic composition and method of preparation.  United States: N. p., 1991. 
        Web.

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                    Smith, James L, & Kucera, Eugenia H. Conductive ceramic composition and method of preparation.  United States.

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                    Smith, James L, and Kucera, Eugenia H. Tue .  
        "Conductive ceramic composition and method of preparation".  United States.  https://www.osti.gov/servlets/purl/867779.

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@article{osti_867779,

  title        = {Conductive ceramic composition and method of preparation},

  author       = {Smith, James L and Kucera, Eugenia H},

  abstractNote = {A ceramic anode composition is formed of a multivalent metal oxide or oxygenate such as an alkali metal, transition metal oxygenate. The anode is prepared as a non-stoichiometric crystalline structure by reaction and conditioning in a hydrogen gas cover containing minor proportions of carbon dioxide and water vapor. The structure exhibits a single phase and substantially enhanced electrical conductivity over that of the corresponding stoichiometric structure. Unexpectedly, such oxides and oxygenates are found to be stable in the reducing anode fuel gas of a molten carbonate fuel cell.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1991},

  month        = {1}

}

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