Preparation method of carbon fiber ultramicroelectrode

A technology of ultra-micro electrodes and carbon fibers, which is applied in the direction of material electrochemical variables, etc., can solve the problems such as the difficulty of making micro-nano-sized carbon fiber electrodes, and achieve the effects of strong mechanical strength, reduced costs, and improved yields

Active Publication Date: 2015-12-30
SOUTHEAST UNIV
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that it is difficult to make micro-nano-sized carbon fiber electrodes for single-cell detection, and propose a method for producing c

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  • Preparation method of carbon fiber ultramicroelectrode
  • Preparation method of carbon fiber ultramicroelectrode
  • Preparation method of carbon fiber ultramicroelectrode

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[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only for explaining the present invention, and are not intended to limit the present invention. In addition, the technical features involved in the specific implementation manners described below may be combined with each other as long as they do not constitute a conflict with each other.

[0024] figure 1 It is the preparation schematic diagram of carbon fiber ultramicro electrode of the present invention; figure 1 Shown, carbon fiber ultramicro electrode preparation method of the present invention comprises the following steps:

[0025] Step 1. Cut the clustered carbon fibers with a diameter of 7 μm into short sections of 2 cm to 2.5 cm, place them in a clean beaker, and use...

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Abstract

The invention discloses a preparation method of a carbon fiber ultramicroelectrode. The method comprises steps as follows: a carbon fiber and a copper wire are bonded through a conductive silver adhesive and axially sent into a glass capillary tube, the steel wire is sealed and fixed through paraffin, the glass capillary tube through which the carbon fiber penetrates is pulled into a carbon fiber strip electrode by a puller, after the paraffin in the glass tube is molten through heating and seals the tip, the paraffin left outside the tip of the capillary tube is cleaned and removed through acetone, and the carbon fiber ultramicroelectrode is obtained through electrochemical etching in a NaOH solution. The carbon fiber ultramicroelectrode can be prepared effectively with the method, the yield of the carbon fiber ultramicroelectrode is increased, batch production of ultramicroelectrodes is rapid and convenient, and the preparation cost of the ultramicroelectrode is reduced.

Description

technical field [0001] The invention relates to a preparation method for producing carbon fiber ultra-micro electrodes by an electrochemical etching method, belongs to the technical field of electrochemical analysis, and relates to the field of micro-nano structure processing. Background technique [0002] Ultramicroelectrodes usually include electrodes whose one-dimensional size is microns (10 -6 m) and nanoscale (10 -9 m) Two types of electrodes. Because when the one-dimensional size of the electrode is reduced from the millimeter level to the micron level, it shows many excellent electrochemical characteristics, such as high mass transfer rate, small time constant, low IR drop, high signal-to-noise ratio, high current density, etc., these The advantages are unmatched by millimeter-scale conventional microelectrodes. Moreover, the size of the ultra-microelectrode is very small, and the measured object is basically not damaged during the detection process, so it can be u...

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Application Information

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IPC IPC(8): G01N27/30
Inventor 王雪梅李奇维陈芸张园园姜晖
Owner SOUTHEAST UNIV
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