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Method for manufacturing schiff bases complex decorating carbon paste electrode

A technology of carbon paste electrodes and complexes, which is applied in the field of electrochemistry, can solve problems such as few reports, and achieve the effect of simple production method and high electrocatalytic oxidation activity

Inactive Publication Date: 2008-08-27
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few reports on the electrocatalytic oxidation of formaldehyde by carbon paste electrodes modified by Schiff base complexes.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0009] Weigh 0.050g electroactive substance 5-bromosalicylaldehyde taurine Schiff base nickel complex in a beaker, add to 1mL N,N-dimethylformamide (DMF) solvent, and then add 0.300g graphite powder , stirred evenly, put into a vacuum drying oven, and vacuum-dried at 50°C to obtain the electrode material. Grind the dried electrode material into powder and heat it with 0.18g of paraffin wax to 80°C, stir it evenly, quickly put it into a glass tube with an inner diameter of 3mm and press it tightly, insert a copper wire at the other end while it is hot, and polish it on weighing paper after cooling , That is, a 5-bromosalicylaldehyde acetal taurine Schiff base nickel complex modified carbon paste electrode was prepared.

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Abstract

The invention discloses a preparation method for a Schiff base complex modified carbon paste electrode, wherein, 0.03 to 0.050 gram 5-bromosalicylaldehyde condensed taurine Schiff base nickel complexes are dissolved into 1 milliliter N,N-dimethylformamide (DMF) solvent, and then 0.300 to 0.400 gram graphite powder is added into the solvent; the solvent is stirred uniformly and then placed into a vacuum drying chamber for vacuum drying under 50 DEG C, and then electrode materials can be obtained; the electrode materials after drying are pulverized, heated to 80 DEG C together with 0.14 to 0.18 paraffins, uniformly stirred, and then quickly filled into a glass tube for compaction; a copper wire is inserted into the other end while the temperature is high and polished on a weighing paper after cooling, and then the 5-bromosalicylaldehyde condensed taurine Schiff base nickel complex modified carbon paste electrode is prepared. The preparation method is simple; moreover, the prepared electrode has high electrocatalysis oxidation activity on formaldehyde, thereby the preparation method can be applied to analytical measurement of formaldehyde in an environmental sample.

Description

technical field [0001] The invention belongs to the technical field of electrochemistry, in particular to a preparation method of a Schiff base complex modified carbon paste electrode. Background technique [0002] At present, Schiff bases and their complexes are widely used in the field of catalysis, and they are mainly used in the fields of polymerization reaction, asymmetric catalytic cyclopropanation reaction, olefin catalytic oxidation and electrocatalytic redox. However, there are few reports on the electrocatalytic oxidation of formaldehyde on carbon paste electrodes modified by Schiff base complexes. Formaldehyde is the gas of a kind of colorless strong pungent smell, has been identified as carcinogenic and teratogenic shape material by the World Health Organization. Formaldehyde pollution is ubiquitous in our lives, such as the release of formaldehyde in decoration materials. Therefore, the research on formaldehyde environmental monitoring methods and technologies ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/30
Inventor 刘峥温玉清
Owner GUILIN UNIVERSITY OF TECHNOLOGY