Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A preparation method of ferricyanide composite electrode material and its detection of hydrogen peroxide

A composite electrode and ferricyanide technology, which is applied in the direction of material analysis, material analysis, and material electrochemical variables through electromagnetic means, to achieve the effects of good stability, simple preparation, and improved response sensitivity

Active Publication Date: 2020-03-10
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, ferricyanide / polyaniline / graphenized carbon nanotube composites have not been reported for the preparation of modified electrodes for H 2 o 2 biological sensor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A preparation method of ferricyanide composite electrode material and its detection of hydrogen peroxide
  • A preparation method of ferricyanide composite electrode material and its detection of hydrogen peroxide
  • A preparation method of ferricyanide composite electrode material and its detection of hydrogen peroxide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] LiPB-PANI-PUCNTs composite preparation steps are as follows:

[0032] (1) Dissolve 50 mL of 1.0 M K 3 Fe(CN) 6 aqueous solution was added to 50 mL of 0.8 M AgNO 3 solution, stirred vigorously for 2 h to obtain a bright yellow precipitate, filtered, washed with water, and washed with ethanol, and dispersed the precipitate into 100 mL of water.

[0033](2) Add 100 mL of 0.6 M LiCl solution to the above dispersion, stir vigorously for 2 h to obtain a lime green suspension, filter to obtain about 50 mmol / L LiFe(CN) 6 clear yellow liquid.

[0034] (3) Mix 20 µL aniline+3 mL 1.0 M HCl+27 mL 50 mmol / L Li 3 Fe(CN) 6 Put in the reactor. Then put the installed reactor into an electric heating constant temperature drying oven at 120 °C, and react for 24 h. After the reaction time was over, the reaction kettle was taken out from the electric constant temperature drying oven. After cooling for a period of time, the solution in the reaction kettle was poured into a beaker, and...

Embodiment 2

[0044] LiPB-PANI-PUCNTs composite preparation steps are as follows:

[0045] (1) Dissolve 50 mL of 1.0 M K 3 Fe(CN) 6 aqueous solution was added to 100 mL of 0.8 M AgNO 3 solution, stirred vigorously for 2 h to obtain a bright yellow precipitate, filtered, washed with water, and washed with ethanol, and dispersed the precipitate into 100 mL of water.

[0046] (2) Add 100 mL of 1.0 M LiCl solution to the above dispersion, stir vigorously for 2 h to obtain a lime green suspension, filter to obtain about 0.1 mol / L LiFe(CN) 6 clear yellow liquid.

[0047] (3) Mix 40 µL aniline+3 mL 1.0 M HCl+27 mL 50 mmol / L Li 3 Fe(CN) 6 Put in the reactor. Then put the installed reactor into an electric heating constant temperature drying oven at 140 °C, and react for 24 h. After the reaction time was over, the reaction kettle was taken out from the electric constant temperature drying oven. After cooling for a period of time, the solution in the reaction kettle was poured into a beaker, a...

Embodiment 3

[0051] LiPB-PANI-PUCNTs composite preparation steps are as follows:

[0052] (1), (2) are the same as Example 1.

[0053] (3) Mix 100 µL aniline+3 mL 1.0 M HCl+27 mL 50 mmol / L Li 3 Fe(CN) 6 Put in the reactor. Then put the installed reactor into an electric heating constant temperature drying oven at 160 °C, and react for 24 h. After the reaction time was over, the reaction kettle was taken out from the electric constant temperature drying oven. After cooling for a period of time, the solution in the reaction kettle was poured into a beaker, and then centrifuged to obtain a black-blue LiPB-PAn precipitate. The obtained precipitate was washed with ethanol, and finally a dark blue LiPB-PAn precipitate was obtained. The obtained LiPB-PAn precipitate was dried in an electric thermostat oven at 80 °C for 24 h.

[0054] (4) 100 μl aniline and 0.05g PUCNTs and 3 ml 1.0 mol / L HCl and 27 ml Li 3 Fe(CN) 6 The precursors were mixed and placed in a reaction kettle, heated at 160 °C...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
Login to View More

Abstract

A method for preparing a ferricyanide composite electrode material and its detection of hydrogen peroxide relates to the preparation and application of a nanometer electrochemical material. Will K 3 Fe(CN) 6 with AgNO 3 solution, LiCl solution mixed to obtain Li 3 Fe(CN) 6 Precursor; aniline monomer, prepared Li 3 Fe(CN) 6 The precursor and the treated graphenized carbon nanotubes were placed in a hydrothermal kettle for reaction, filtered, and dried to obtain LiPB-PAn-PUCNTs composite material. Li 3 Fe(CN) 6 have a redox potential within the conduction potential range of PAn, resulting in the PAn array being able to transfer charges quickly to the Li 3 Fe(CN) 6 redox center; grapheneized carbon nanotubes have excellent electrical conductivity, large specific surface area and biocompatibility, so their in-situ polymerization and mixing increase the conductivity and dispersion of the composite material, and can quickly realize the combination with The direct electron transfer on the electrode surface increases the response sensitivity to hydrogen peroxide detection accordingly.

Description

technical field [0001] The present invention relates to a kind of preparation method of nano electrochemical material and its application in H 2 o 2 detection, especially a method for preparing a ferricyanide composite electrode material and its detection of hydrogen peroxide. Background technique [0002] Due to the special properties different from conventional materials, nanomaterials have shown broad application prospects in many fields such as chemical engineering, medicine, environmental protection, microelectronics, energy and national defense, and have been practically applied in some fields. [0003] As a branch of chemical sensors, electrochemical biosensors have been widely studied and applied in the field of analysis and detection because of their convenience, high sensitivity, good selectivity and easy automation. [0004] Due to the high specific surface area, good biocompatibility, and controllability of shape and structure, nanostructured materials have bee...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/327G01N27/30
CPCG01N27/308G01N27/3278
Inventor 徐立环苏畅李龙徐帅夏宇马姣姣郭朋举
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com