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Nanometer composite electrode material for improving glucose sensing performance and preparation method thereof

A kind of electrode material and nanocomposite technology, which is applied in the direction of nanotechnology, nanotechnology, nanotechnology, etc. for sensing, can solve the problems of sensitivity and detection limit to be further improved, and achieve excellent catalytic activity, excellent catalytic performance and Conductivity, enhanced stability effect

Pending Publication Date: 2022-06-21
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the sensitivity and detection limit of the nanotubes need to be further improved when detecting glucose.

Method used

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  • Nanometer composite electrode material for improving glucose sensing performance and preparation method thereof
  • Nanometer composite electrode material for improving glucose sensing performance and preparation method thereof
  • Nanometer composite electrode material for improving glucose sensing performance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] S1: Preparation of titanium-based amorphous alloy nanotubes

[0038] Ti and Cu with a purity of 99.99% were 60 Cu 40 The proportions of the alloys are weighed and put into the arc melting furnace, and the alloy is repeatedly smelted 5 times in the atmosphere of high-purity argon gas. At the same time, the magnetic stirring is turned on to ensure that the alloy elements are mixed evenly; The oxide layer is placed in a quartz tube for 5g, and a strip with a width of about 1mm and a thickness of about 20μm is prepared by shaking the strip in the atmosphere of high-purity argon; a small part is cut and welded with the nickel wire, and the welding place is smeared with ordinary nail polish. Ensure that the exposed surface area of ​​the strip is 0.3cm 2 ; The prepared sample is used as the anode, and the platinum sheet is used as the counter electrode and placed in about 50 ml of ethylene glycol electrolyte with 0.2 wt% NH 4 F+2.0vol%H 2 O used an electrochemical workstat...

Embodiment 2

[0043] S1: Preparation of titanium-based amorphous alloy nanotubes

[0044] Ti and Cu with a purity of 99.99% were 60 Cu 40 The proportions of the alloys are weighed and put into the arc melting furnace, and the alloy is repeatedly smelted 5 times in the atmosphere of high-purity argon gas. At the same time, the magnetic stirring is turned on to ensure that the alloy elements are mixed evenly; The oxide layer is put into a quartz tube for 5g, and a strip with a width of about 1mm and a thickness of about 20μm is prepared by shaking the strip in the atmosphere of high-purity argon; Ensure that the exposed surface area of ​​the strip is 0.3cm 2 ; The prepared sample is used as the anode, and the platinum sheet is used as the counter electrode and placed in about 50 ml of ethylene glycol electrolyte with 0.2 wt% NH 4 F+2.0vol%H 2 O used an electrochemical workstation to apply a constant voltage of 15V to polarize for 4h, take it out and put it in deionized water for ultrasoni...

Embodiment 3

[0049] S1: Preparation of titanium-based amorphous alloy nanotubes

[0050] Ti and Cu with a purity of 99.99% were 60 Cu 40 The proportions of the alloys are weighed and put into the arc melting furnace, and the alloy is repeatedly smelted 5 times in the atmosphere of high-purity argon gas. At the same time, the magnetic stirring is turned on to ensure that the alloy elements are mixed evenly; The oxide layer is put into a quartz tube for 5g, and a strip with a width of about 1mm and a thickness of about 20μm is prepared by shaking the strip in the atmosphere of high-purity argon; Ensure that the exposed surface area of ​​the strip is 0.3cm 2 ; The prepared sample is used as the anode, and the platinum sheet is used as the counter electrode and placed in about 50 ml of ethylene glycol electrolyte with 0.2 wt% NH 4 F+2.0vol%H 2 O used an electrochemical workstation to apply a constant voltage of 15V to polarize for 4h, take it out and put it in deionized water for ultrasoni...

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Abstract

The invention discloses a nano composite electrode material for improving glucose sensing performance, the nano composite electrode material has a composite structure formed by a double-layer nano structure, the double-layer nano structure comprises a bottom layer structure and a surface layer structure, the bottom layer structure is a titanium-based amorphous alloy nanotube with an opening in the upper end surface, and the surface layer structure is a titanium-based amorphous alloy nanotube with an opening in the upper end surface. The surface layer structure is a nanostructure formed by two transition metal elements, and the surface layer structure is attached to the upper end face of the titanium-based amorphous alloy nanotube; wherein the transition metal elements are any two of Mn, Fe, Co, Ni and Cu. The invention also discloses a preparation method of the nano composite electrode material for improving the glucose sensing performance. According to the nano-composite electrode material disclosed by the invention, double metal elements are co-deposited on the surface of the titanium-based amorphous alloy nanotube to form a nano-composite structure, so that the electrode material has a larger specific surface area, more active sites and a higher electron transmission rate, and has higher sensitivity and lower detection limit when glucose is detected.

Description

technical field [0001] The invention relates to the technical field of nano metal functional materials, in particular to a nano composite electrode material for improving glucose sensing performance and a preparation method thereof. Background technique [0002] TiO 2 Nanotubes are a new type of inorganic functional materials. Due to their unique porous structure and semiconducting properties, they have applications in photocatalysis, dye-sensitized cells and sensors. Traditional titanium-based nanotubes basically use crystalline alloys. And precursor preparation, this is because for most alloy systems, its amorphous forming ability is limited or even amorphous; secondly, amorphous alloys have strong corrosion resistance, in the process of preparing nanostructured materials. Limited. However, the amorphous structure has long-range disorder and short-range order. When forming a nanotube structure, the ordered nanotubes may further increase the specific surface area, increas...

Claims

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Application Information

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IPC IPC(8): G01N27/30G01N27/48C25D11/26C25D5/18C25D3/56B82Y15/00B82Y40/00
CPCG01N27/30G01N27/48C25D11/26C25D3/56C25D5/18B82Y15/00B82Y40/00
Inventor 秦凤香林宗领陈峰池昱晨王杭宁
Owner NANJING UNIV OF SCI & TECH