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Textile material-based porous water splitting catalyst and preparation method therefor

A water splitting, catalyst technology, applied in the treatment of textile materials, catalyst activation/preparation, nanotechnology for materials and surface science, etc. Point and electrolyte contact area, etc., to achieve the effect of large surface area, high performance, and excellent charge transport characteristics

Pending Publication Date: 2021-12-31
KOREA UNIV RES & BUSINESS FOUND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, metals are expensive, and the low hygroscopicity of carbon black affects the contact area between catalytically active sites and the electrolyte.
The insulating material Nafion reduces the charge transfer, which eventually leads to the deterioration of the catalytic performance

Method used

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  • Textile material-based porous water splitting catalyst and preparation method therefor
  • Textile material-based porous water splitting catalyst and preparation method therefor
  • Textile material-based porous water splitting catalyst and preparation method therefor

Examples

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Embodiment approach

[0061] A description will be given of a method for preparing a textile-based porous water-splitting catalyst according to the present invention. The fabric-based porous water-splitting catalysts are the same as those mentioned above, and their detailed descriptions are omitted or only briefly presented to avoid repetition.

[0062] Figure 7 with Figure 8 are a flowchart and a diagram, respectively, showing a method for preparing a textile-based porous water-splitting catalyst according to an embodiment of the present invention.

[0063] Such as Figure 7 with Figure 8 As shown in , the method includes: (a) preparing a first dispersion of polymeric material, and immersing a porous fabric support made by interweaving a plurality of fibers into the first dispersion to form on the surface of the fibers Forming a bonding layer (S100); (b) preparing a second dispersion of metal nanoparticles, and immersing the fabric support on which the bonding layer is formed in the second ...

Embodiment

[0072] Example: Fabrication of Fabric-Based Porous Water-Splitting Catalysts

[0073] PEI having an amine group was dispersed in ethanol to a concentration of 2 mg / mL to prepare a first dispersion. Thereafter, a porous textile support made of cellulose ("cellulose substrate") was immersed in the first dispersion for 3 hours, washed twice with ethanol, and dried with a drier. Au nanoparticles were hydrophobically stabilized with tetraoctylammonium bromide (TOABr) and dispersed in toluene to prepare a second dispersion. Then, the fabric support was immersed in the second dispersion for 1 h, washed twice with toluene, dried with a desiccator, and immersed in a 2 mg / mL solution of diethylenetriamine (DETA) in ethanol (the third dispersion body) for 30 minutes. DETA is a unimolecular compound with an amine group. Likewise, the fabric support was washed twice with ethanol and dried. Sequential impregnation in the second and third dispersions resulted in the formation of a (TOABr...

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Abstract

The present invention relates to a textile material-based porous water splitting catalyst and a preparation method therefor, and the textile material-based porous water splitting catalyst according to the present invention comprises: a porous textile support (10) formed by the inter-crossing of a plurality of fibers (11); binding layers (20) formed on the surface of the fibers (11); conductive layers (30) comprising nanoparticle layers (31), which comprise metal nanoparticles and are formed on the binding layers (20), and monomolecular layers (33), which comprise a monomolecular material containing an amine group (NH2) and are formed on the nanoparticle layers (31); and catalyst layers (40) which comprises a catalytic metal, and which is formed on the conductive layers (30) by the electroplating of the catalytic metal.

Description

technical field [0001] The present invention relates to fabric-based porous water-splitting catalysts and methods for preparing them. More specifically, the present invention relates to porous water-splitting catalysts based on fabrics and coated with catalyst materials by a simple electroplating process and methods for preparing said water-splitting catalysts. Background technique [0002] As industrial development progresses, fossil fuels such as coal, oil, and natural gas have been exhausted, and have caused environmental pollution and global warming. Therefore, there is a need to develop energy sources that have the potential to replace fossil fuels. Under these circumstances, considerable research efforts have been undertaken around the world to develop alternative energy technologies, including those for converting natural energy sources such as solar, wind, and tidal energy into electrical For example, the technology of producing hydrogen energy from water. In part...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B11/031C25B11/056C25B11/053C25B11/091C25D5/54C25B1/04C25D3/12
CPCC25B1/04C25D17/10C25D5/14C25D7/00D06M15/61D06M23/08D06M11/83D06M13/332B82Y30/00B01J37/348B01J37/0217B01J23/52B01J23/50Y02E60/36B01J35/58B01J23/755B82Y40/00C25D3/12D06B3/10D06M2101/06B01J35/19B01J35/23B01J35/393
Inventor 赵镇汉高允智
Owner KOREA UNIV RES & BUSINESS FOUND
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