Preparation method of Ti-matrix insoluble anode

A soluble anode and titanium-based technology, which is applied in the fields of electrode material preparation, comprehensive utilization of waste lead storage batteries, and material preparation, can solve the problems of lack of anode materials and the failure of industrialization in the organic electrochemical synthesis process, so as to optimize the preparation process and improve Electrochemical performance and the effect of improving the service life

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

[0006] Although organic electrochemical synthesis has incomparable advantages over chemical methods, many organic electrochemical s...

Method used

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  • Preparation method of Ti-matrix insoluble anode

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Embodiment 1

[0041] A method for preparing a titanium-based insoluble anode, in particular, a method that uses metal titanium as the electrode matrix, uses lead paste of waste lead storage batteries as raw material, and uses NH 3 .H 2 O-(NH 4 ) SO 4 Leach PbSO 4 , PbSO obtained through separation and purification 4 As the raw material, the thermal decomposition of the polymeric precursor-electrochemical oxidation of lead sulfate coupling technology, PbSO 4 PbO was prepared by anodic oxidation 2 , to get PbO 2 Directly used as an electrocatalytic electrode material to obtain a titanium-based insoluble anode, the process is as follows figure 1 ,Specific steps are as follows:

[0042] (1) Surface treatment: mechanically grind the plate-shaped titanium metal substrate, degrease the surface in an aqueous hydroxide solution, etch in an oxalic acid solution, and wash with water to obtain a surface-treated titanium substrate, and the substrate material enters the next step;

[0043] (2) In...

Embodiment 2

[0049] A kind of preparation method of titanium-based insoluble anode, with PbSO 4 As the raw material, the thermal decomposition of the polymeric precursor-electrochemical oxidation of lead sulfate coupling technology, PbSO 4 PbO was prepared by anodic oxidation 2 , to get PbO 2 Directly used as an electrocatalytic electrode material to obtain a titanium-based insoluble anode, the steps are as follows:

[0050] (1) Surface treatment: mechanically grind the netted metal titanium substrate, degrease the surface in an aqueous solution of hydroxide and carbonate, etch in an oxalic acid solution, and wash with water to obtain a surface-treated titanium substrate. The base material enters the next step;

[0051] (2) Intermediate layer coating: the metal titanium substrate obtained in the previous step is used as the electrode substrate, and the precursor is made of SnCl 4 , SbCl 3 , PbCl 2 , citric acid and ethylene glycol, the molar ratio of citric acid to ethylene glycol is...

Embodiment 3

[0057] A kind of preparation method of titanium-based insoluble anode, with PbSO 4 As the raw material, the thermal decomposition of the polymeric precursor-electrochemical oxidation of lead sulfate coupling technology, PbSO 4 PbO was prepared by anodic oxidation 2 , to get PbO 2 Directly used as an electrocatalytic electrode material to obtain a titanium-based insoluble anode, characterized in that the method steps are as follows:

[0058] (1) Surface treatment: grinding the rod-shaped metal titanium substrate, degreasing the surface in an aqueous solution of hydroxide, carbonate and bicarbonate, etching in an oxalic acid solution, and washing with water to obtain a surface-treated titanium substrate, The matrix material enters the next step;

[0059] (2) Intermediate layer coating: the metal titanium substrate obtained in the previous step is used as the electrode substrate, and the precursor is made of SnCl 4 , SbCl 3 、LaCl 3 , citric acid and ethylene glycol, the mol...

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Abstract

The invention relates to a preparation method of a Ti-matrix insoluble anode and belongs to the field of preparation technologies of electrode materials and resource utilization technologies of waste lead storage batteries. Particularly, metal Ti is used as an electrode matrix, PbSO4 obtained through separation and refinement of lead of the waste lead storage batteries is used as a raw material, a polymeric precursor thermal decomposition-lead sulfate electrochemical oxidation coupling technology is adopted, PbO2 is prepared through PbSO4 anode oxidation, and the obtained PbO2 is directly used as an electro-catalytic electrode material. The preparation method mainly comprises technological processes such as surface treatment of the Ti matrix, interlayer coating, drying and roasting, active layer coating, electrode drying, PbSO4 electrochemical oxidation and the like. The method is simple and can meet different electrode usage requirements by changing electrolyte and operation conditions, meanwhile, a rare earth mixture is added to an electrochemical oxidation solution, the surface of an electrode is treated with a rare earth modification technology, the performance of the electrode can be further improved, and the performance of the electrode is regulated and controlled.

Description

technical field [0001] The invention relates to a preparation method of a titanium-based insoluble anode, which belongs to the technical field of material preparation, especially the field of electrode material preparation; it also belongs to the technical field of three wastes treatment and resource utilization, especially the technical field of comprehensive utilization of waste lead storage batteries. Background technique [0002] In the process of organic electrochemical synthesis, the oxidation or reduction process is realized by electron transfer between the organic reactant or medium (electron carrier) and the electrode, and generally no harmful or dangerous oxidation or reduction reagents are used. Compared with chemical methods, electrochemical methods for organic synthesis have the following advantages: [0003] (1) The reaction process can be controlled by the electrode potential to improve the selectivity of the target product; [0004] (2) The reaction can be c...

Claims

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Application Information

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IPC IPC(8): C25B11/10H01M10/54
CPCY02W30/84
Inventor 王雅琼范春红许文林聂文孙燕子贾哲华
Owner YANGZHOU UNIV
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