Porous sheets

US11005089B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11005089-B2
Application numberUS-201615243614-A
CountryUS
Kind codeB2
Filing dateAug 22, 2016
Priority dateAug 22, 2016
Publication dateMay 11, 2021
Grant dateMay 11, 2021

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A method of preparing a porous sheet includes mixing a matrix material dispersion including a matrix material dispersed in a first dispersion medium with a microorganism dispersion including microorganisms in a second dispersion medium, to form a mixture. The first and the second dispersion media are removed from the mixture to form a matrix sheet, and the microorganisms are decomposed from the matrix sheet to form the porous sheet.

First claim

Opening claim text (preview).

What is claimed is: 1. A method of preparing a porous sheet, comprising: mixing a matrix material dispersion comprising a matrix material dispersed in a first dispersion medium with a microorganism dispersion comprising microorganisms in a second dispersion medium, to form a mixture; removing the first and the second dispersion media from the mixture to form a matrix sheet that includes spaces filled by the microorganisms; and decomposing the microorganisms from the matrix sheet to form pores in the porous sheet that correspond to the spaces, wherein the decomposing includes both chemical and thermal treatments and freeze drying the matrix sheet prior to the thermal treatment, wherein porosity and pore shape of the matrix sheet is dependent upon microorganism species and concentration. 2. The method of claim 1 , wherein the matrix material includes carbon. 3. The method of claim 1 , wherein the microorganisms include bacteria. 4. The method of claim 1 , wherein removing the first and the second dispersion media includes at least one of filtration and evaporation. 5. The method of claim 1 , wherein the microorganisms have a dimension of about 0.1 micrometers to about 50 micrometers. 6. The method of claim 1 , wherein the microorganisms have a dimension of about 0.1 micrometers to about 5 micrometers. 7. The method of claim 1 , wherein the microorganisms contain more than one species of microorganism. 8. The method of claim 1 , wherein the first dispersion medium and the second dispersion medium are different. 9. The method of claim 1 , wherein chemically treating the matrix sheet comprises applying a bleach treatment to the matrix sheet.

Assignees

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Classifications

  • Fuel cells · CPC title

  • Lysis of microorganisms · CPC title

  • Carbon-based electrodes · CPC title

  • composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type · CPC title

  • C01B32/168Primary

    After-treatment · CPC title

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What does patent US11005089B2 cover?
A method of preparing a porous sheet includes mixing a matrix material dispersion including a matrix material dispersed in a first dispersion medium with a microorganism dispersion including microorganisms in a second dispersion medium, to form a mixture. The first and the second dispersion media are removed from the mixture to form a matrix sheet, and the microorganisms are decomposed from the…
Who is the assignee on this patent?
IBM, Aselsan
What technology area does this patent fall under?
Primary CPC classification C01B32/168. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue May 11 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).