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Method for electroplating graphene/carbon fiber by utilizing ionic liquid, product and application

A technology of ionic liquid and carbon fiber, which is applied to the electrochemical variables of materials, material analysis through electromagnetic means, instruments, etc., can solve the problems of unbendable, bulky and expensive medical devices, and achieve good specific surface area and increase specific surface area , the effect of high sensitivity

Active Publication Date: 2017-03-08
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, with people's continuous pursuit of portable and healthy electronic equipment and micro-precision electronic products, traditional medical devices have been unable to meet the needs of the new generation of electronic devices due to their shortcomings such as bulky, inflexible, and expensive. , how to obtain medical electronic products with the characteristics of miniature, light weight, softness and safety is an urgent task for the development of medical electronic products

Method used

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  • Method for electroplating graphene/carbon fiber by utilizing ionic liquid, product and application
  • Method for electroplating graphene/carbon fiber by utilizing ionic liquid, product and application
  • Method for electroplating graphene/carbon fiber by utilizing ionic liquid, product and application

Examples

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Embodiment 1

[0037] Include the following steps:

[0038] (1) Select ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate to prepare a graphene oxide-ionic liquid dispersion with a concentration of 6mg / ml: 10ml of a graphene oxide aqueous solution with a concentration of 6mg / ml Mix evenly with 10ml of 1-butyl-3-methylimidazolium tetrafluoroborate by ultrasonic method, and then place the mixed solution in a vacuum drying oven at 35°C for 3 days to remove moisture.

[0039] (2) Activation of carbon fiber: the carbon fiber was ultrasonically cleaned 3 times with ethanol and water, and then dried. The carbon fiber was used as the working electrode, the platinum mesh electrode was used as the auxiliary electrode, and the saturated calomel electrode was used as the reference electrode. 2 SO 4 (mass percentage concentration can be more than 96%) and HNO 3 (Mass percentage concentration can be more than 64%) In the mixed acid obtained by mixing at a volume ratio of 1:1, under the condition...

Embodiment 2

[0044] Include the following steps:

[0045] (1) Use ionic liquid 1-ethyl-3-methylimidazolium tetrafluoroborate to prepare a graphene oxide-ionic liquid dispersion with a concentration of 8mg / ml: mix 10ml of 8mg / ml graphene oxide aqueous solution with 10ml The 1-ethyl-3-methylimidazolium tetrafluoroborate was mixed uniformly by ultrasonic method, and then the mixed solution was placed in a vacuum oven at 35°C for 3 days to remove moisture.

[0046] (2) Activation of carbon fiber: the carbon fiber was ultrasonically cleaned 3 times with ethanol and water, and then dried. The carbon fiber was used as the working electrode, the platinum mesh electrode was used as the auxiliary electrode, and the saturated calomel electrode was used as the reference electrode. 2 SO 4 with HNO 3 In a mixed acid with a volume ratio of 1:1, under the condition of a constant potential of +3V, electrocatalytic oxidation was carried out for 10 minutes, and then soaked and washed with deionized water u...

Embodiment 3

[0051] Include the following steps:

[0052] (1) select ionic liquid 1-butyl-3-methylimidazole trifluoromethanesulfonate for use, prepare the graphene oxide-ionic liquid dispersion liquid that concentration is 3mg / ml: the graphene oxide aqueous solution of 5ml 3mg / ml is mixed with 10ml of 1-butyl-3-methylimidazolium trifluoromethanesulfonate was mixed uniformly by ultrasonic method, and then the mixture was placed in a vacuum oven at 35°C for 3 days to remove the water.

[0053] (2) Activation of carbon fiber: the carbon fiber was ultrasonically cleaned 3 times with ethanol and water, and then dried. The carbon fiber was used as the working electrode, the platinum mesh electrode was used as the auxiliary electrode, and the saturated calomel electrode was used as the reference electrode. 2 SO 4 with HNO 3 In a mixed acid with a volume ratio of 1:1, under the condition of a constant potential of +3V, electrocatalytic oxidation was carried out for 10 minutes, and then soaked an...

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Abstract

The invention discloses a method for electroplating graphene / carbon fiber by utilizing ionic liquid, a product and application. The method comprises the following steps: (1) activating carbon fiber and preparing a graphene oxide-ionic liquid dispersion solution; (2) using the activated carbon fiber obtained in step (1) as a working electrode and putting the activated carbon fiber in the graphene oxide-ionic liquid dispersion solution obtained in step (1), and then electroplating, thus obtaining graphene modified carbon fiber, i.e., the graphene / carbon fiber. According to the method disclosed by the invention, through improvement on the whole technological design of a key preparation technology, reaction conditions of each step and the like, the prepared and obtained graphene / carbon fiber has good specific surface area; the graphene / carbon fiber can be used as a self-supporting flexible micro electrode for detecting hydrogen peroxide (such as the concentration of the hydrogen peroxide), and the sensitivity is high.

Description

technical field [0001] The invention belongs to the field of biological nanomaterials, and more specifically, relates to a method, product and application of utilizing ionic liquid electrodeposited graphene / carbon fiber (that is, graphene-modified carbon fiber), the method is to use ionic liquid as electrolyte, in The method for preparing flexible microelectrodes by electrodepositing graphene on carbon fibers, the size of the prepared flexible microelectrodes can be as low as micrometers or even nanometers, and can be used as self-supporting electrodes for hydrogen peroxide sensors (such as concentration sensors). Background technique [0002] With the development of science and technology and the requirements of human beings for the quality of life, non-invasive or minimally invasive diagnosis and treatment technology has become one of the focuses of research and development in the field of international biomedical engineering. In addition, with people's continuous pursuit ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/30
CPCG01N27/308
Inventor 肖菲王露王帅张艳赵安顺
Owner HUAZHONG UNIV OF SCI & TECH
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