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US 12,671,096 B2Granted
Porous silicon oxycarbide composite material and method for manufacturing same
AssigneeDIC Corporation
InventorsYusaku Goto, Shinji Kato
Life of this patent
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Abstract
A porous silicon oxycarbide composite material comprises a porous silicon oxycarbide having a three-dimensional skeleton structure, and a carbon-containing material supported by the three-dimensional skeleton structure, wherein the porous silicon oxycarbide composite material has a BET specific surface area of 100 m2/g or more and an electrical conductivity of 1.0×10−6 S/cm or more.
Claims21
A porous silicon oxycarbide composite material comprising:
- a porous silicon oxycarbide forming a three-dimensional skeleton structure, and
- a carbon-containing material supported by the three-dimensional skeleton structure,
- the porous silicon oxycarbide composite material having a BET specific surface area of 100 m2/g or more, and having an electrical conductivity of 1.0×10−6 S/cm or more.
A method for producing a porous silicon oxycarbide composite material, comprising the steps of:
- (A) adding an organic alkoxysilane to an acidic aqueous solution containing a surfactant and a pH adjustor to cause a sol-gel reaction of the organic alkoxysilane, forming a gel;
- (B) cleaning the gel with an alcohol;
- (C) drying the cleaned gel to form a porous silicon oxycarbide precursor;
- and
- (D) calcining the porous silicon oxycarbide precursor to obtain a porous silicon oxycarbide composite material,
- wherein, in the step (A), a carbon-containing material or an organic polymer is further added to the acidic aqueous solution to form a gel containing the carbon-containing material or the organic polymer.
3 more elements
Dependencies are inferred from the claim text.