Ceramic membranes with enhanced thermal stability

Title: Ceramic membranes with enhanced thermal stability

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Abstract

A method of creating a ceramic membrane with enhanced thermal stability is disclosed. The method involves combining quantities of a first metal alkoxide with a second metal, the quantities selected to give a preselected metal ratio in the resultant membrane. A limited amount of water and acid is added to the combination and stirred until a colloidal suspension is formed. The colloid is dried to a gel, and the gel is fired at a temperature greater than approximately 400.degree. C. The porosity and surface area of ceramic membranes formed by this method are not adversely affected by this high temperature firing.

Inventors:

Anderson, Marc A ^[1]; Xu, Qunyin ^[2]; Bischoff, Brian L ^[1]

Madison, WI
Plainsboro, NJ

Issue Date:: 1993-01-01

Research Org.:: Univ. of Wisconsin, Madison, WI (United States)

OSTI Identifier:: 868800

Patent Number(s):: 5215943

Assignee:: Wisconsin Alumi Research Foundation (Madison, WI)

Patent Classifications (CPCs):: C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

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C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
C04B38/0045 - {by a process involving the formation of a sol or a gel, e.g. sol-gel or precipitation processes}
C04B35/46 - based on titanium oxides or titanates

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DOE Contract Number:: AS07-86ID12626

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: ceramic; membranes; enhanced; thermal; stability; method; creating; membrane; disclosed; involves; combining; quantities; metal; alkoxide; selected; preselected; ratio; resultant; limited; amount; water; acid; added; combination; stirred; colloidal; suspension; formed; colloid; dried; fired; temperature; approximately; 400; degree; porosity; surface; adversely; affected; firing; selected metal; enhanced thermal; involves combining; thermal stability; metal alkoxide; ceramic membranes; method involves; ceramic membrane; colloidal suspension; adversely affect; adversely affected; resultant membrane; combining quantities; method involve; /501/

Citation Formats


                    Anderson, Marc A, Xu, Qunyin, and Bischoff, Brian L. Ceramic membranes with enhanced thermal stability.  United States: N. p., 1993. 
        Web.

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                    Anderson, Marc A, Xu, Qunyin, & Bischoff, Brian L. Ceramic membranes with enhanced thermal stability.  United States.

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                    Anderson, Marc A, Xu, Qunyin, and Bischoff, Brian L. Fri .  
        "Ceramic membranes with enhanced thermal stability".  United States.  https://www.osti.gov/servlets/purl/868800.

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@article{osti_868800,

  title        = {Ceramic membranes with enhanced thermal stability},

  author       = {Anderson, Marc A and Xu, Qunyin and Bischoff, Brian L},

  abstractNote = {A method of creating a ceramic membrane with enhanced thermal stability is disclosed. The method involves combining quantities of a first metal alkoxide with a second metal, the quantities selected to give a preselected metal ratio in the resultant membrane. A limited amount of water and acid is added to the combination and stirred until a colloidal suspension is formed. The colloid is dried to a gel, and the gel is fired at a temperature greater than approximately 400.degree. C. The porosity and surface area of ceramic membranes formed by this method are not adversely affected by this high temperature firing.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1993},

  month        = {1}

}

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