CN114232018A - Preparation method of coated titanium electrode - Google Patents
Preparation method of coated titanium electrode Download PDFInfo
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- CN114232018A CN114232018A CN202111389059.0A CN202111389059A CN114232018A CN 114232018 A CN114232018 A CN 114232018A CN 202111389059 A CN202111389059 A CN 202111389059A CN 114232018 A CN114232018 A CN 114232018A
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- iridium
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
- C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
- C25B11/052—Electrodes comprising one or more electrocatalytic coatings on a substrate
- C25B11/053—Electrodes comprising one or more electrocatalytic coatings on a substrate characterised by multilayer electrocatalytic coatings
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/24—Halogens or compounds thereof
- C25B1/26—Chlorine; Compounds thereof
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
- C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
- C25B11/055—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the substrate or carrier material
- C25B11/057—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the substrate or carrier material consisting of a single element or compound
- C25B11/061—Metal or alloy
- C25B11/063—Valve metal, e.g. titanium
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
- C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
- C25B11/073—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material
- C25B11/075—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of a single catalytic element or catalytic compound
- C25B11/081—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of a single catalytic element or catalytic compound the element being a noble metal
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
- C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
- C25B11/073—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material
- C25B11/075—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of a single catalytic element or catalytic compound
- C25B11/089—Alloys
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Abstract
The invention discloses a preparation method of a coating titanium electrode, which comprises the following steps: preparing chloroplatinic acid coating liquid by using spongy platinum, and performing the following steps: preparing ruthenium iridium titanium coating liquid by using ruthenium chloride, chloroiridic acid, alcohol liquid and butyl titanate, and comprising the following steps of: pretreating the surface of the titanium substrate, and the fourth step: coating chloroplatinic acid coating liquid on the pretreated titanium substrate, sintering and cooling, and the fifth step: coating the titanium substrate with the platinum coating with ruthenium iridium titanium coating liquid, sintering and cooling, and carrying out the sixth step: repeating the step five 8-20 times, and the step seven: the invention provides a preparation method of a coated titanium electrode, which belongs to the technical field of chemical materials, effectively solves the problems that the service life of the existing coated titanium electrode cannot meet the user requirements and the production and use costs of enterprises are high, and is a method capable of improving the service life of the coated titanium electrode, ensuring the product effect, improving the cost performance of the enterprises for using the coated titanium electrode, reducing the cost and improving the energy efficiency.
Description
Technical Field
The invention belongs to the technical field of chemical materials, and particularly relates to a preparation method of a coated titanium electrode.
Background
With the rising price of noble metal ruthenium and iridium, noble metal ruthenium and iridium in the prior art are indispensable components in production, so that the production cost of the coating titanium electrode is increased day by day, the service life of the existing coating titanium electrode is poor and cannot meet the use requirements of users, the cost of producing and using the coating titanium electrode by enterprises is increased, and the cost performance is reduced.
Disclosure of Invention
In view of the above situation, in order to overcome the defects of the prior art, the invention aims to provide a method for preparing a coated titanium electrode, which effectively solves the problems that the service life of the existing coated titanium electrode cannot meet the user requirements and the production and use costs of enterprises are high, and is a method capable of improving the service life of the coated titanium electrode, ensuring the product effect, and improving the cost performance of the enterprises for using the coated titanium electrode, thereby achieving the purposes of reducing the production cost and improving the energy efficiency.
The technical scheme adopted by the invention is as follows: a preparation method of a coated titanium electrode comprises the following steps:
the method comprises the following steps: preparing chloroplatinic acid coating liquid by using spongy platinum to obtain the chloroplatinic acid coating liquid;
step two: preparing ruthenium-iridium-titanium coating liquid by using ruthenium chloride, chloroiridic acid, alcohol liquid and butyl titanate to obtain the ruthenium-iridium-titanium coating liquid;
step three: pretreating the surface of a titanium substrate to obtain a pretreated titanium substrate;
step four: coating chloroplatinic acid coating liquid on the pretreated titanium substrate, sintering and cooling to obtain the titanium substrate with the platinum coating;
step five: coating the titanium substrate with the platinum coating with the ruthenium iridium titanium coating liquid, sintering and cooling to obtain the titanium substrate with the ruthenium iridium coating;
step six: repeating the fifth step for 8-20 times to obtain a finished product;
step seven: and detecting the service life of the finished product.
Further, the finished product comprises a titanium substrate, a platinum coating and a ruthenium iridium coating, wherein the platinum coating is arranged on the titanium substrate, and the ruthenium iridium coating is arranged on the platinum coating.
Still further, the weight ratio of the metal of the chloroplatinic acid solution is 5-38%, and the balance is alcohols.
Wherein, the repetition times in the fourth step are 2-5 times, the sintering is carried out until the thickness is 0.1-1 micron, and the sintering temperature is 600 ℃.
Preferably, the metal mass percent of the noble metals ruthenium and iridium in the ruthenium-iridium coating is 20-80% of ruthenium and 10-90% of iridium.
And further, in the third step, sand blasting is performed on the titanium substrate, oil is removed, oxalic acid boiling treatment is performed, and finally deionized water is used for cleaning and drying.
Further, the thickness of the platinum coating and the ruthenium iridium coating is 5-20 microns.
In addition, the ruthenium iridium coating includes, but is not limited to, this binary oxide coating.
Additionally, the platinum coating includes, but is not limited to, a heat treatment process.
After the technical scheme is adopted, the invention has the following beneficial effects: the addition of the platinum coating enables the ruthenium system chlorine evolution titanium electrode to greatly delay oxygen from entering the titanium substrate to react into insulating titanium dioxide after water is electrolyzed to generate oxygen in practical environmental application, thereby prolonging the service life of the titanium electrode.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Embodiment 1 a method for preparing a coated titanium electrode, comprising the steps of:
the method comprises the following steps: preparing chloroplatinic acid coating liquid by using spongy platinum to obtain the chloroplatinic acid coating liquid;
step two: preparing ruthenium-iridium-titanium coating liquid by using ruthenium chloride, chloroiridic acid, alcohol liquid and butyl titanate to obtain the ruthenium-iridium-titanium coating liquid;
step three: pretreating the surface of a titanium substrate to obtain a pretreated titanium substrate;
step four: coating chloroplatinic acid coating liquid on the pretreated titanium substrate, sintering and cooling to obtain the titanium substrate with the platinum coating;
step five: coating the titanium substrate with the platinum coating with the ruthenium iridium titanium coating liquid, sintering and cooling to obtain the titanium substrate with the ruthenium iridium coating;
step six: repeating the step five for 8 times to obtain a finished product;
step seven: and detecting the service life of the finished product.
The finished product comprises a titanium substrate, a platinum coating and a ruthenium-iridium coating, wherein the platinum coating is arranged on the titanium substrate, and the ruthenium-iridium coating is arranged on the platinum coating.
The weight ratio of metal in the chloroplatinic acid solution is 5%, and the balance is alcohol.
The repetition times in the fourth step are 2 times, the sintering is carried out until the thickness is 0.1 micron, and the sintering temperature is 450 ℃.
The metal mass percentage of the noble metal ruthenium and the noble metal iridium in the ruthenium-iridium coating is that the ruthenium accounts for 90 percent, and the iridium accounts for 10 percent.
And step three, firstly carrying out sand blasting on the titanium substrate, removing oil, then carrying out oxalic acid boiling treatment, and finally carrying out deionized water cleaning and drying.
The thickness of the platinum coating and the ruthenium iridium coating was 5 microns.
Ruthenium iridium coatings include, but are not limited to, such binary oxide coatings.
Platinum coatings include, but are not limited to, heat treatment processes.
Embodiment 2 a method for preparing a coated titanium electrode, comprising the steps of:
the method comprises the following steps: preparing chloroplatinic acid coating liquid by using spongy platinum to obtain the chloroplatinic acid coating liquid;
step two: preparing ruthenium-iridium-titanium coating liquid by using ruthenium chloride, chloroiridic acid, alcohol liquid and butyl titanate to obtain the ruthenium-iridium-titanium coating liquid;
step three: pretreating the surface of a titanium substrate to obtain a pretreated titanium substrate;
step four: coating chloroplatinic acid coating liquid on the pretreated titanium substrate, sintering and cooling to obtain the titanium substrate with the platinum coating;
step five: coating the titanium substrate with the platinum coating with the ruthenium iridium titanium coating liquid, sintering and cooling to obtain the titanium substrate with the ruthenium iridium coating;
step six: repeating the step five for 20 times to obtain a finished product;
step seven: and detecting the service life of the finished product.
The finished product comprises a titanium substrate, a platinum coating and a ruthenium-iridium coating, wherein the platinum coating is arranged on the titanium substrate, and the ruthenium-iridium coating is arranged on the platinum coating.
The weight ratio of metal in the chloroplatinic acid solution was 38%, and the balance was alcohols.
The repetition times in the fourth step are 5 times, the sintering is carried out until the thickness is 1 micron, and the sintering temperature is 600 ℃.
The metal mass percentage of the noble metals ruthenium and iridium in the ruthenium-iridium coating is that ruthenium is 80 percent and iridium is 20 percent.
And step three, firstly carrying out sand blasting on the titanium substrate, removing oil, then carrying out oxalic acid boiling treatment, and finally carrying out deionized water cleaning and drying.
The thickness of the platinum coating and the ruthenium iridium coating was 20 microns.
Ruthenium iridium coatings include, but are not limited to, such binary oxide coatings.
Platinum coatings include, but are not limited to, heat treatment processes.
Embodiment 3 a method for preparing a coated titanium electrode, comprising the steps of:
the method comprises the following steps: preparing chloroplatinic acid coating liquid by using spongy platinum to obtain the chloroplatinic acid coating liquid;
step two: preparing ruthenium-iridium-titanium coating liquid by using ruthenium chloride, chloroiridic acid, alcohol liquid and butyl titanate to obtain the ruthenium-iridium-titanium coating liquid;
step three: pretreating the surface of a titanium substrate to obtain a pretreated titanium substrate;
step four: coating chloroplatinic acid coating liquid on the pretreated titanium substrate, sintering and cooling to obtain the titanium substrate with the platinum coating;
step five: coating the titanium substrate with the platinum coating with the ruthenium iridium titanium coating liquid, sintering and cooling to obtain the titanium substrate with the ruthenium iridium coating;
step six: repeating the step five for 14 times to obtain a finished product;
step seven: and detecting the service life of the finished product.
The finished product comprises a titanium substrate, a platinum coating and a ruthenium-iridium coating, wherein the platinum coating is arranged on the titanium substrate, and the ruthenium-iridium coating is arranged on the platinum coating.
The invention relates to a preparation method of a coating titanium electrode, wherein the metal weight ratio of a chloroplatinic acid solution is 16 percent, and the balance is alcohols.
The repetition times in the fourth step are 2-5 times, the sintering is carried out until the thickness is 0.1-1 micron, and the sintering temperature is 575 ℃.
The metal mass percentage of the noble metals ruthenium and iridium in the ruthenium-iridium coating is 70 percent of ruthenium and 30 percent of iridium.
And step three, firstly carrying out sand blasting on the titanium substrate, removing oil, then carrying out oxalic acid boiling treatment, and finally carrying out deionized water cleaning and drying.
The thickness of the platinum coating and the ruthenium iridium coating was 12 microns.
Ruthenium iridium coatings include, but are not limited to, such binary oxide coatings.
Platinum coatings include, but are not limited to, heat treatment processes.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The present invention and its embodiments have been described above, but the description is not limitative, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. The preparation method of the coating titanium electrode is characterized by comprising the following steps:
the method comprises the following steps: preparing chloroplatinic acid coating liquid by using spongy platinum to obtain the chloroplatinic acid coating liquid;
step two: preparing ruthenium-iridium-titanium coating liquid by using ruthenium chloride, chloroiridic acid, alcohol liquid and butyl titanate to obtain the ruthenium-iridium-titanium coating liquid;
step three: pretreating the surface of a titanium substrate to obtain a pretreated titanium substrate;
step four: coating chloroplatinic acid coating liquid on the pretreated titanium substrate, sintering and cooling to obtain the titanium substrate with the platinum coating;
step five: coating the titanium substrate with the platinum coating with the ruthenium iridium titanium coating liquid, sintering and cooling to obtain the titanium substrate with the ruthenium iridium coating;
step six: repeating the fifth step for 8-20 times to obtain a finished product;
step seven: and detecting the service life of the finished product.
2. The method of claim 1, wherein the step of forming the coated titanium electrode comprises: the finished product comprises a titanium substrate, a platinum coating and a ruthenium-iridium coating, wherein the platinum coating is arranged on the titanium substrate, and the ruthenium-iridium coating is arranged on the platinum coating.
3. The method of claim 2, wherein the step of preparing the coated titanium electrode comprises: the weight ratio of metal in the chloroplatinic acid solution is 5-38%, and the balance is alcohol.
4. The method of claim 3, wherein the step of preparing the coated titanium electrode comprises: the repetition times in the fourth step are 2-5 times, the sintering is carried out until the thickness is 0.1-1 micron, and the sintering temperature is 600 ℃.
5. The method of claim 4, wherein the step of preparing the coated titanium electrode comprises: the metal mass percentage of the noble metal ruthenium and the iridium in the ruthenium-iridium coating is 20-80% of ruthenium and 10-90% of iridium.
6. The method of claim 5, wherein the step of forming the coated titanium electrode comprises: and thirdly, sand blasting is performed on the titanium substrate, oil is removed, oxalic acid boiling treatment is performed, and finally deionized water is used for cleaning and drying.
7. The method of claim 6, wherein the step of preparing the coated titanium electrode comprises: the thickness of the platinum coating and the ruthenium iridium coating is 5-20 microns.
8. The method of claim 7, wherein the step of forming the coated titanium electrode comprises: the ruthenium iridium coating includes, but is not limited to, this binary oxide coating.
9. The method of claim 8, wherein the step of forming the coated titanium electrode comprises: the platinum coating includes, but is not limited to, a heat treatment process.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111389059.0A CN114232018A (en) | 2021-11-22 | 2021-11-22 | Preparation method of coated titanium electrode |
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| CN202111389059.0A CN114232018A (en) | 2021-11-22 | 2021-11-22 | Preparation method of coated titanium electrode |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4797182A (en) * | 1986-04-17 | 1989-01-10 | Eltech Systems Corporation | Electrode with a platinum metal catalyst in surface film and its use |
| CN101111631A (en) * | 2005-01-27 | 2008-01-23 | 德诺拉工业有限公司 | High efficiency hypochlorite anodic coating |
| CN101922016A (en) * | 2009-06-09 | 2010-12-22 | 明达实业(厦门)有限公司 | Titanium electrode for chlorine generator and preparation method thereof |
| JP2013166994A (en) * | 2012-02-15 | 2013-08-29 | Asahi Kasei Chemicals Corp | Electrolysis electrode, electrolysis tank, and method for manufacturing electrolysis electrode |
| CN108048862A (en) * | 2017-11-16 | 2018-05-18 | 江苏安凯特科技股份有限公司 | A kind of analysis chlorine anode and preparation method thereof |
| CN112795908A (en) * | 2020-12-18 | 2021-05-14 | 西安泰金工业电化学技术有限公司 | Preparation method of titanium anode with titanium-based coating |
-
2021
- 2021-11-22 CN CN202111389059.0A patent/CN114232018A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4797182A (en) * | 1986-04-17 | 1989-01-10 | Eltech Systems Corporation | Electrode with a platinum metal catalyst in surface film and its use |
| CN101111631A (en) * | 2005-01-27 | 2008-01-23 | 德诺拉工业有限公司 | High efficiency hypochlorite anodic coating |
| CN101922016A (en) * | 2009-06-09 | 2010-12-22 | 明达实业(厦门)有限公司 | Titanium electrode for chlorine generator and preparation method thereof |
| JP2013166994A (en) * | 2012-02-15 | 2013-08-29 | Asahi Kasei Chemicals Corp | Electrolysis electrode, electrolysis tank, and method for manufacturing electrolysis electrode |
| CN108048862A (en) * | 2017-11-16 | 2018-05-18 | 江苏安凯特科技股份有限公司 | A kind of analysis chlorine anode and preparation method thereof |
| CN112795908A (en) * | 2020-12-18 | 2021-05-14 | 西安泰金工业电化学技术有限公司 | Preparation method of titanium anode with titanium-based coating |
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