Preparation method for palladium modified electrode with base body formed by para-toluenesulfonic acid mixed with polypyrole

A technology of p-toluenesulfonic acid and modified electrodes, which is applied in the direction of electrodes, electrolytic processes, electrolytic components, etc., can solve the problem of uneven dispersion of palladium particles, and achieve the effect of improving the dechlorination performance of electrocatalytic reduction

Active Publication Date: 2012-09-19
HARBIN INST OF TECH
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Problems solved by technology

[0005] In order to solve the technical problem of uneven dispersion of palladium particles on the existing electrodes, the present...

Method used

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  • Preparation method for palladium modified electrode with base body formed by para-toluenesulfonic acid mixed with polypyrole
  • Preparation method for palladium modified electrode with base body formed by para-toluenesulfonic acid mixed with polypyrole
  • Preparation method for palladium modified electrode with base body formed by para-toluenesulfonic acid mixed with polypyrole

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specific Embodiment approach 1

[0024] Specific embodiment one: the preparation method of the palladium-modified electrode based on p-toluenesulfonic acid doped polypyrrole in this embodiment is as follows:

[0025] One, the preparation of the pyrrole solution of p-toluenesulfonic acid:

[0026] Mixing p-toluenesulfonic acid and pyrrole in a molar ratio of 2:1 to obtain a pyrrole solution of p-toluenesulfonic acid;

[0027] Two, the preparation of p-toluenesulfonic acid doped polypyrrole layer:

[0028] With the pretreated nickel foam substrate as the anode and the platinum sheet as the cathode, polymerize in the pyrrole solution of p-toluenesulfonic acid at a constant potential of 0.6V to 0.7V and a polymerization temperature of 0°C for 15min to 20min to obtain PPy (PTS) / Ni electrode;

[0029] 3. Add palladium chloride and sodium chloride into deionized water according to the molar ratio of 1:3, and stir magnetically for 8-10 hours to make a mixed solution. The concentration of palladium chloride in th...

specific Embodiment approach 2

[0034] Embodiment 2: This embodiment differs from Embodiment 1 in that the purity of the platinum sheet in step 2 is 99.99%. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0035] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the constant potential in step 2 is 0.65V. Others are the same as in the first or second embodiment.

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Abstract

A preparation method for a palladium modified electrode with a base body formed by para-toluenesulfonic acid mixed with polypyrole relates to a preparation method of electrodes. The preparation method solves the technical problem of being uneven in palladium particle dispersion on the existing electrodes. The method includes the following steps: 1 preparing a pyrrole solution of para-toluenesulfonic acid; 2 preparing a PPy (PTS)/Ni electrode; 3 using the PPy (PTS)/Ni electrode as a cathode, using a platinum sheet as an anode and depositing so as to obtain a Pd/PPy (PTS)/Ni electrode. A layer of pyrrole is polymerized on a foam nickel base body, and polypyrrole is in an even micro-ball shape. Adding of the polypyrrole increases material specific surface area for bearing palladium, and dispersion of the palladium particles is even, so that the prepared electrode has good electro-catalysis reduction dechlorination efficiency, is good in stability, and has good application prospects.

Description

technical field [0001] The invention relates to a preparation method of an electrode. Background technique [0002] There are many kinds of chlorinated organic compounds and they are widely used. They are mainly used as herbicides, insecticides, preservatives and various oils. They are widely used in industrial and agricultural production processes, resulting in a large amount of chlorinated organic compounds being discharged into the environment. Most chlorinated organic substances are highly toxic, and many compounds have "three causes" effects. Moreover, it is widely distributed, has strong chemical stability, and is difficult to be biodegraded. Seriously, it can accumulate in the food chain, and even cause serious impact and harm to the human endocrine system. Therefore, the research on the pollution control of chlorinated organic compounds is imminent. [0003] The treatment methods of chlorinated organic compounds can be divided into three categories: physical and ch...

Claims

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Application Information

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IPC IPC(8): C25B11/04C25B11/08
Inventor 刘惠玲李君敬王执伟
Owner HARBIN INST OF TECH
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