A kind of preparation method and application of porous mxene hydrogel based on electrogel process

A technology of electrogel and hydrogel, which is applied in the direction of electrolytic coating, electrophoretic plating, hybrid capacitor electrolyte, etc., can solve the problems of complex preparation, single shape, and the inability to realize the controllable modification of porous MXene hydrogel patterning, etc. achieve a universal effect

Active Publication Date: 2022-01-14
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although these preparation methods can successfully prepare porous MXene, almost all of them exist in the form of membrane, which is not only complicated to prepare but also has a single shape, and it is impossible to realize the patterned and controllable modification of porous MXene hydrogel, which hinders the porous MXene in more electrons. Developments in the field of devices

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  • A kind of preparation method and application of porous mxene hydrogel based on electrogel process
  • A kind of preparation method and application of porous mxene hydrogel based on electrogel process
  • A kind of preparation method and application of porous mxene hydrogel based on electrogel process

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preparation example Construction

[0031] The present invention proposes a kind of porous MXene hydrogel preparation method based on electrogel process, and its preparation steps are:

[0032] S1: modifying the sacrificial metal layer on the target substrate;

[0033] S2: Use the target substrate modified with the sacrificial metal layer as the working electrode, and form an electrochemical system together with the standard electrode;

[0034] S3: The electrochemical system is immersed in the MXene dispersion, and an electrogel process is performed by applying an electric field, so that the MXene sheet in the dispersion forms a porous MXene hydrogel on the surface of the sacrificial metal layer.

[0035] Among them, the specific materials and process parameters in the above preparation method can adopt the following methods:

[0036] The electrogel process described above needs to apply a current or voltage bias to the electrochemical system. The method of modifying the sacrificial metal layer can be realized...

Embodiment 1

[0042] Such as figure 1 As shown, a method for preparing a porous MXene hydrogel based on an electrogel process is provided in this embodiment, which specifically includes the following steps:

[0043] 1) Form a gold-plated pad layer 102 with a certain pattern on the target substrate 101 by using a printed electronic circuit process.

[0044] 2) The above-mentioned target substrate 101 with the gold-plated pad layer 102 is immersed in the copper electrolyte 103 to implement a metal electroplating process, so that a copper sacrificial layer 104 is formed on the gold-plated pad layer 102, wherein the copper electrolyte is composed of 0.32g anhydrous copper sulfate, 4mL acetic acid, 45mL deionized water mixed. The electroplating process is to use the target substrate 101 as the working electrode and the standard electrode 105 to form an electrochemical system 106, and apply a constant current field 107 of -3mA to the electrochemical system 106.

[0045] 3) The electrochemical s...

Embodiment 2

[0048] Such as figure 1As shown, a method for preparing a porous MXene hydrogel based on an electrogel process is provided in this embodiment, which specifically includes the following steps:

[0049] 1) Form a gold-plated pad layer 102 with a certain pattern on the target substrate 101 by using a printed electronic circuit process.

[0050] 2) The above-mentioned target substrate 101 with the gold-plated pad layer 102 is immersed in the copper electrolyte 103 to implement a metal electroplating process, so that a copper sacrificial layer 104 is formed on the gold-plated pad layer 102, wherein the copper electrolyte is composed of 0.32g anhydrous copper sulfate, 4mL acetic acid, 45mL deionized water mixed. The electroplating process is to use the target substrate 101 as the working electrode and the standard electrode 105 to form an electrochemical system 106 , and apply a constant current field 107 of -1 mA to the electrochemical system 106 .

[0051] 3) Immerse the electro...

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Abstract

The invention discloses a preparation method and application of a porous MXene hydrogel based on an electrogelling process. The present invention utilizes the electrochemical oxidation process of sacrificial metals, so that MXene can directly and controllably form a hydrogel with porous microstructure on a target substrate. The preparation method is as follows: firstly, a sacrificial metal layer is formed on a target substrate, combined with a standard electrode to form an electrochemical system and placed in an MXene dispersion liquid, and then an electric field is applied to the electrochemical system to complete the electrogelation process. The spatial controllability and precision controllability of this preparation method make it suitable for patterning and controllable modification of porous MXene hydrogels for various electronic devices, which solves the limitation that current porous MXene hydrogels cannot be patterned. The further development of MXene hydrogels in the field of electronic devices provides the possibility.

Description

technical field [0001] The invention belongs to the field of electronic device manufacturing, and in particular relates to a method for preparing a porous MXene hydrogel based on an electrogel process and its application. Background technique [0002] MXene is a new two-dimensional material composed of transition metal carbides or nitrides. Because of its unique conductivity and hydrophilicity, it has broad prospects in many fields. The porous MXene formed by the construction of two-dimensional sheet-like materials improves the shortcoming of easy stacking between MXene sheets, exposes more active sites, and endows the porous MXene hydrogel with a larger specific surface area. , which have greater application potential than lamellar MXenes in various fields. [0003] The current preparation technology of porous MXene, whether it is through the regulation of functional groups on the surface of MXene, or doping and blending with other nanomaterials, or adding an interlamellar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D13/02H01G11/56
CPCC25D13/02H01G11/56C01P2004/01C01P2006/40
Inventor 梁波屠婷婷叶学松
Owner ZHEJIANG UNIV
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