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Titanium oxide columnar array/two-dimensional lamellar titanium carbide electrode material and preparation and application thereof

A two-dimensional layered and electrode material technology, applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, etc., can solve problems such as the disordered arrangement of titanium oxide

Active Publication Date: 2016-08-24
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Most of the titanium oxide / two-dimensional layered titanium carbide nanocomposites reported in the literature are prepared by liquid phase method or heat treatment. The disadvantage is that the prepared titanium oxide is mostly particles and disordered arrangement.

Method used

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  • Titanium oxide columnar array/two-dimensional lamellar titanium carbide electrode material and preparation and application thereof
  • Titanium oxide columnar array/two-dimensional lamellar titanium carbide electrode material and preparation and application thereof

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Experimental program
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Effect test

Embodiment 1

[0021] In the titanium oxide columnar array / two-dimensional layered titanium carbide electrode material of this embodiment, the nano-titanium oxide columnar arrays arranged in an orderly manner are distributed between the sheets.

[0022] The application of a titanium oxide columnar array / two-dimensional layered titanium carbide electrode material in this embodiment is used as an electrode material in an electrochemical capacitor.

[0023] A method for preparing a titanium oxide columnar array / two-dimensional layered titanium carbide electrode material according to this embodiment, the method includes the following steps:

[0024] Step 1, put Ti 3 C 2 Nano powder, conductive carbon black and binder PTFE are mixed according to the mass ratio of 80:15:5, and stirred continuously to form a uniform slurry; the above slurry is rolled into a 75μm film and cut into 1cm* 2cm, and then stick it on the nickel foam with the same size, then put it in a vacuum drying oven, and dry it at ...

Embodiment 2

[0033] In the titanium oxide columnar array / two-dimensional layered titanium carbide electrode material of this embodiment, the nano-titanium oxide columnar arrays arranged in an orderly manner are distributed between the sheets.

[0034] The application of a titanium oxide columnar array / two-dimensional layered titanium carbide electrode material in this embodiment is used as an electrode material in an electrochemical capacitor.

[0035] A method for preparing a titanium oxide columnar array / two-dimensional layered titanium carbide electrode material according to this embodiment, the method includes the following steps:

[0036] Step 1, put Ti 3 C 2 Nano powder, conductive carbon black and binder PTFE are mixed according to the mass ratio of 90:5:5, and continuously stirred to form a uniform slurry; the above slurry is rolled into a film and cut into 1cm*2cm , and then stick it on the nickel foam with the same size, then put it into a vacuum drying oven, and dry it at 120°...

Embodiment 3

[0044] In the titanium oxide columnar array / two-dimensional layered titanium carbide electrode material of this embodiment, the nano-titanium oxide columnar arrays arranged in an orderly manner are distributed between the sheets.

[0045] The application of a titanium oxide columnar array / two-dimensional layered titanium carbide electrode material in this embodiment is used as an electrode material in an electrochemical capacitor.

[0046] A method for preparing a titanium oxide columnar array / two-dimensional layered titanium carbide electrode material according to this embodiment, the method includes the following steps:

[0047] Step 1, put Ti 3 C 2 Nano powder, conductive carbon black and binder PTFE are mixed according to the mass ratio of 85:10:5, and continuously stirred to form a uniform slurry; the above slurry is rolled into a film and cut into 1cm*2cm , and then stick it on the nickel foam with the same size, then put it into a vacuum drying oven, and dry it at 120...

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Abstract

The invention provides a titanium oxide columnar array / two-dimensional lamellar titanium carbide electrode material and a preparation and an application thereof. By a CHI660E electrochemical workstation, with a Ti3C2 electrode as a working electrode, Ag / AgCl / 3M KCl as a reference electrode and Pt as a counter electrode, treatment is carried out in a potassium hydroxide electrolyte with certain concentration at a certain polarization current through an electrochemical cathode polarization method for a certain period of time to obtain the novel titanium oxide columnar array / two-dimensional lamellar titanium carbide electrode material with high performance. The titanium oxide columnar array / two-dimensional lamellar titanium carbide electrode material has the characteristics of being novel in preparation method, mild in reaction condition, simple and controllable in process and the like; the defect that only unordered titanium oxide can be prepared in the prior art is overcome; and a foundation is laid for further application of the ordered titanium oxide columnar array / two-dimensional lamellar titanium carbide mixed structure in other electronic devices of a lithium-ion battery and the like.

Description

technical field [0001] The invention belongs to the technical field of preparation of nano functional materials and electrochemical energy storage materials, and in particular relates to a high-performance titanium oxide columnar array / two-dimensional layered titanium carbide electrode material and its preparation and application. Background technique [0002] Two-dimensional layered titanium carbide nanomaterials (MXene) are based on Ti 3 AlC 2 The difference in interlayer force is obtained by corroding the Al layer by a certain method. Due to its unique graphene-like structure, large specific surface area, and good conductivity, it has been widely used in adsorption, photocatalysis, biosensors, lithium-ion batteries, supercapacitors, etc. Especially in supercapacitors, it has excellent specific capacity and stability compared with other electrode materials. In 2014, Naguib et al. prepared disordered TiO by methods such as hydrothermal oxidation and rapid oxidation. 2 / ...

Claims

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Application Information

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IPC IPC(8): H01G11/30H01G11/32H01G11/46H01G11/86
CPCY02E60/13H01G11/30H01G11/32H01G11/46H01G11/86
Inventor 朱建锋赵倩楠汤祎李学林赵婷王芬牛冬娟
Owner SHAANXI UNIV OF SCI & TECH
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