Preparation method of platinum quantum dot doped graphene-based conductive ink, conductive ink and application thereof

A graphene-based, conductive ink technology, applied in graphene, application, ink and other directions, can solve the problems of easy aging and deterioration of conductive ink printing layer, complex ink preparation process, poor ink stability, etc., and achieve easy product quality and control products. quality, the effect of promoting dispersion

Active Publication Date: 2020-07-14
FOSHAN SHUNDE SANBEI ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a method for preparing a platinum quantum dot-doped graphene-based conductive ink, by which a platinum quantum dot-doped graphene-based conductive ink can be prepared to solve the problems of existing printing inks The ink preparation process existing in the technology is complicated and difficult to control, the stability of the prepared ink is poor, the printing layer of the printed conductive ink is easy to age and deteriorate, and long-term use causes "brittleness" and uneven heating.

Method used

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  • Preparation method of platinum quantum dot doped graphene-based conductive ink, conductive ink and application thereof
  • Preparation method of platinum quantum dot doped graphene-based conductive ink, conductive ink and application thereof
  • Preparation method of platinum quantum dot doped graphene-based conductive ink, conductive ink and application thereof

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Embodiment 1

[0045] Preparation of graphene oxide acetone dispersion: 500 mg of graphite powder was provided, and graphene oxide (Graphene Oxide, GO) was prepared by a modified Hummers method. In order to further obtain few-layer graphene oxide, place graphene oxide in an ice-water bath, use an ultrasonic disperser to sonicate for 10 minutes at a power of 250W, repeat once, take the supernatant, centrifuge, and resuspend in acetone to obtain a thickness ranging from 12 to Graphene oxide acetone dispersion liquid with 20 layers and lateral dimension of 700-1000nm. Concentrate by centrifugation as required to adjust the concentration of the graphene oxide acetone dispersion to 150 mg / ml.

[0046] Preparation of platinum quantum dot-doped graphene dispersion: take 50ml of the graphene oxide acetone dispersion prepared above and add 0.05g of phosphomolybdic acid to it, stir at 600rpm for 10h, centrifuge at 15000rpm for 30min, and collect the first precipitate at the bottom of the centrifuge tu...

Embodiment 2

[0052] Preparation of graphene oxide acetone dispersion: 500 mg of graphite powder was provided, and graphene oxide (Graphene Oxide, GO) was prepared by a modified Hummers method. The prepared graphene oxide was further transferred to a high-temperature carbonization furnace for high-temperature carbonization for 30 s. The high-temperature carbonization furnace was filled with nitrogen gas, and the temperature of the high-temperature carbonization furnace was 1200° C. In order to further obtain few-layer graphene oxide, place the graphene oxide expanded at high temperature in an ice-water bath, use an ultrasonic disperser to sonicate for 20 minutes at a power of 250W, repeat once, take the supernatant, centrifuge, and resuspend in acetone. A graphene oxide acetone dispersion liquid with a thickness ranging from 8 to 15 layers and a lateral dimension of 700 to 1000 nm. Concentrate by centrifugation as required to adjust the concentration of the graphene oxide acetone dispersion...

Embodiment 3

[0059] Preparation of graphene oxide acetone dispersion: 500 mg of graphite powder was provided, and graphene oxide (Graphene Oxide, GO) was prepared by a modified Hummers method. The prepared graphene oxide was further transferred to a high-temperature carbonization furnace for high-temperature carbonization for 60 seconds. The high-temperature carbonization furnace was filled with argon gas, and the temperature of the high-temperature carbonization furnace was 1000° C. In order to further obtain few-layer graphene oxide, place the graphene oxide expanded at high temperature in an ice-water bath, use an ultrasonic disperser to sonicate for 30 minutes at a power of 250W, repeat once, take the supernatant, centrifuge, and resuspend in acetone to obtain Graphene oxide acetone dispersion with a thickness ranging from 1 to 8 layers and a lateral dimension of 700 to 1000 nm. Concentrate by centrifugation as required to adjust the concentration of the graphene oxide acetone dispersi...

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Abstract

The invention provides a preparation method of platinum quantum dot doped graphene-based conductive ink. The preparation method comprises the following steps in parts by weight: preparing a graphene oxide acetone dispersion liquid, preparing a platinum quantum dot doped graphene dispersion liquid, preparing platinum quantum dot doped graphene-carbon black paste, preparing resin paste, preparing aplatinum quantum dot doped graphene-based mixed liquid, and preparing the platinum quantum dot doped graphene-based conductive ink. A graphene conductive film prepared from the platinum quantum dot doped graphene-based conductive ink has considerable flexibility, toughness, hardness and adhesive force, can be printed on various base materials, and also has the characteristics of high temperature resistance, the long service life and the like. The invention also provides a preparation method of the platinum quantum dot doped graphene-based conductive ink and application of the platinum quantumdot doped graphene-based conductive ink in preparation of a graphene conductive film.

Description

technical field [0001] The invention relates to the technical field of nanomaterials, in particular to a preparation method of platinum quantum dot-doped graphene-based conductive ink, and the invention also relates to a graphene conductive ink prepared by the preparation method of platinum quantum dot-doped graphene-based conductive ink. Ink, the present invention also relates to the application of graphene conductive ink on electric heating equipment, in particular to the application in the preparation of graphene conductive film. Background technique [0002] Graphene is a two-dimensional nanomaterial with a hexagonal honeycomb lattice structure formed by carbon atoms through sp2 hybrid orbitals and only one layer of carbon atoms thick. The unique structure of graphene endows it with many excellent properties, such as high theoretical specific surface area (2630m 2 / g), ultra-high electron mobility (~200000cm 2 / v.s), high thermal conductivity (5000W / m.K), high Young's ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/52C09D11/107C09D11/30C09D11/38C09D11/102C09D11/105C09D11/103C01B32/184F24D13/02
CPCC09D11/52C09D11/107C09D11/30C09D11/38C09D11/102C09D11/105C09D11/103C01B32/184F24D13/02Y02P20/10
Inventor 吴立刚叶德林胡柱东彭令曾垂彬孔金波刘秋明马宇飞
Owner FOSHAN SHUNDE SANBEI ELECTRONICS CO LTD
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