Porous body and manufacturing method therefor
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsYuka Yamada, Masa-aki Suzuki, Nobuyasu Suzuki, Yasunori Morinaga, Hidehiro Sasaki
Life of this patent
Estimating the term…
Abstract
It is an object of the present invention to provide a porous body containing an oxide semiconductor in which more efficient photocatalytic reactions and photoelectrode reactions occur. The present invention relates to a porous body having a network structure skeleton wherein 1) the aforementioned skeleton is composed of an inner part and a surface part, 2) the aforementioned inner part is substantially made of carbon material, and 3) all or part of the aforementioned surface part is an oxide semiconductor, and to a manufacturing method therefor.
Claims18
A method for manufacturing an oxide semiconductor/carbon porous body which has a network structure skeleton, 1) the skeleton being composed of an inner part and a surface part, 2) the inner part being substantially made of carbon material, and 3) all or part of the surface part being an oxide semiconductor, the manufacturing method comprising:
- (1) Step 1 of obtaining a composite wet gel by coating the skeleton in a carbon precursor-containing wet gel having a network structure skeleton with an oxide semiconductor precursor;
- (2) Step 2 of obtaining a composite dry gel by drying the composite wet gel;
- and
- (3) Step 3 of obtaining an oxide semiconductor/carbon composite porous body by heat-treating the composite dry gel.
A method for manufacturing a porous body which has a network structure skeleton, 1) the skeleton being composed of an inner part and a surface part, 2) the inner part being substantially made of carbon material, and 3) all or part of the surface part being an oxide semiconductor, the manufacturing method comprising:
- (1) Step 1 of obtaining a dry gel having a network structure skeleton by drying a wet gel containing a carbon precursor and having a network structure skeleton;
- (2) Step 2 of obtaining a composite precursor by coating the skeleton in the dry gel with an oxide semiconductor;
- and
- (3) Step 3 of obtaining an oxide semiconductor/carbon composite porous body by heat-treating the composite precursor.
A method for manufacturing a porous body which has a network structure skeleton, 1) the skeleton being composed of an inner part and a surface part, 2) the inner part being substantially made of carbon material, and 3) all or part of the surface part being an oxide semiconductor, the manufacturing method comprising:
- (1) Step 1 of obtaining a dry gel having a network structure skeleton by drying a wet gel containing a carbon precursor and having a network structure skeleton;
- (2) Step 2 of obtaining a carbon porous body by carbonizing the dry gel, and
- (3) Step 3 of obtaining an oxide semiconductor/carbon composite porous body by coating the skeleton in the carbon porous body with an oxide semiconductor.
Dependencies are inferred from the claim text.