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Combustible 3D direct writing ink, and preparation method and application thereof

An ink and 3D technology, applied in the field of direct writing ink preparation, can solve the problems such as the template is not easy to be completely removed, remain, and affect the performance of the electrode, and achieve the effects of broad commercial application prospects, low production cost, and simple structure.

Active Publication Date: 2021-09-24
WESTLAKE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method relies heavily on the scale and surface properties of the template. In addition, the template is not easy to remove completely, and some residues are generated, which affects the performance of the electrode.

Method used

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  • Combustible 3D direct writing ink, and preparation method and application thereof
  • Combustible 3D direct writing ink, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Select metal nickel powder as filler, select F127 as fuel, Ni(NO 3 ) 2 ·6H 2 O as an oxidizing agent, H 2 Combustion synthesis system with O as solvent, 0.5g F127, 1.45g Ni(NO 3 ) 2 ·6H 2 O. 2g of nickel powder and 0.5g of water are blended by grinding for 20 minutes to prepare a viscous slurry, and then perform 3D ink direct writing. The specific printing parameters are extrusion pressure 50psi, extrusion needle diameter 300um, and wire center distance 400um , the printing speed is 3mm / s. After the printed structure is dried, place the printed structure on a preheated heating stage, use a high-temperature heating stage, set the surface temperature of the heating stage to 300°C for ignition, and construct a metal electrode with a hierarchical hole structure, such as figure 2 shown.

Embodiment 2

[0030] Select metal silver powder as filler, select F127 as fuel, AgNO 3 As an oxidizing agent, H 2 Combustion synthesis system with O as solvent, 0.5g F127, 2g Ni(NO 3 ) 2 ·6H 2 O. 2g silver powder and 0.5g water are blended by grinding for 20 minutes to prepare a viscous slurry, and then perform 3D ink direct writing. The specific printing parameters are extrusion pressure 60psi, extrusion needle diameter 200um, wire center distance 300um, The printing speed is 5mm / s. After the printed structure is dry, the printed structure is placed on the surface of a preheated hot stage (a high-temperature hot stage is used, and the surface temperature of the hot stage is set to 300°C) for ignition to build a metal electrode with a hierarchical pore structure.

Embodiment 3

[0032] Select metal nickel powder as filler, select F127 as fuel, Ni(NO 3 ) 2 ·6H 2 O as an oxidizing agent, H 2 Combustion synthesis system with O as solvent, 0.5g F127, 1.45g Ni(NO 3 ) 2 ·6H 2 O. 2g of nickel powder and 0.5g of water are blended by grinding for 30 minutes to prepare a viscous slurry, and then perform 3D ink direct writing. The specific printing parameters are extrusion pressure 50psi, extrusion needle diameter 300um, wire center distance 400um , the printing speed is 3mm / s. After the printed structure is dried, the printed structure is placed on the surface of a preheated hot stage (a high-temperature hot stage is used, and the surface temperature of the hot stage is set to 250°C) for ignition to build a metal electrode with a hierarchical pore structure.

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Abstract

The invention provides combustible 3D direct writing ink, and a preparation method and application thereof. Combustible printing ink disclosed by the invention is formed by adopting metal powder as a shape maintaining material, taking an oxide of the corresponding metal powder as an oxidizing agent, adopting a water-soluble polymer as a fuel, adding the materials into water and uniformly mixing the materials; the combustible printing ink can be ignited by means of a hot table, etc.; after 3D direct writing printing is used to ignite an ink printing structure, a graded hole electrochemical electrode is prepared; compared with the prior art, the ink is novel in formula; the ink prepared by adopting the formula is used for 3D printing; the printing process is simple to operate; the production period is short; and the graded hole electrochemical electrode can be prepared on a large scale.

Description

technical field [0001] The invention belongs to the field of functional materials and manufacturing technology, and in particular relates to a method for preparing a combustible direct writing ink and its application in electrochemical conversion. Background technique [0002] Hierarchical porous materials have the properties of hierarchical channels, which can achieve high specific surface area and high mass transfer efficiency at the same time, making them a hot field in the research of electrochemical energy storage and conversion. The 3D printing process can reasonably control the primary pore structure and wire diameter, and effectively improve the mass transfer efficiency. The 3D printed porous electrochemical electrode is used for efficient energy storage and conversion, which provides a new vision for solving energy crisis and environmental problems. An emerging field of electrochemical electrode research. [0003] The formation of the primary hole depends on the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00B22F5/00B22F10/25B22F10/50B33Y10/00B33Y70/10
CPCB22F10/25B22F10/50B22F5/00B33Y70/10B33Y10/00Y02P10/25
Inventor 周南嘉邢旺
Owner WESTLAKE UNIV
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