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CN108048864A - Common cathode ultrasonic electrochemical device - Google Patents

Common cathode ultrasonic electrochemical device Download PDF

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Publication number
CN108048864A
CN108048864A CN201711434340.5A CN201711434340A CN108048864A CN 108048864 A CN108048864 A CN 108048864A CN 201711434340 A CN201711434340 A CN 201711434340A CN 108048864 A CN108048864 A CN 108048864A
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China
Prior art keywords
ultrasonic
cathode
plate
power supply
ultrasonic transducer
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CN201711434340.5A
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CN108048864B (en
Inventor
吴晓歌
刘俊利
侯建华
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Yangzhou University
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Yangzhou University
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    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B11/00Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/02Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physical Water Treatments (AREA)

Abstract

The invention discloses a kind of common cathode ultrasonic electrochemical devices, including electrolytic cell, cathode plate, anode plate, ultrasonic transducer, ultrasonic-frequency power supply, DC power supply, cathode plate and anode plate are provided in electrolytic cell, cathode plate is spaced a distance with anode plate, the one side of cathode plate is fixedly installed ultrasonic transducer, ultrasonic transducer is arranged between sealing cover and cathode plate, and sealing cover is covered on ultrasonic transducer and is integrated with cathode plate sealing;Ultrasonic transducer is made of front shroud, central electrode, back shroud, the first piezoelectric chip, the second piezoelectric chip;Ultrasonic transducer is connected with ultrasonic-frequency power supply, and ultrasonic-frequency power supply is connected with DC power supply.The present invention accelerates liquid phase quality transmission, the effects that accelerating reaction rate, enhance electrochemical luminescence, change electrochemical reaction yield, preferably plays the efficiency of ultrasonic electrochemical.

Description

Common cathode ultrasonic electrochemical device
Technical field
The present invention relates to advanced oxidation technical field of chemistry, and in particular to a kind of common cathode ultrasonic electrochemical device.
Background technology
The research and development of ultrasonic electrochemical in recent years quickly ultrasound and electrochemistry combination have the advantages that it is many potential, These advantages include the cleaning of electrode surface and degasification, the erosion of the depassivation of electrode surface, electrode surface;Accelerate liquid phase matter Amount transmission;Accelerate reaction rate;Enhance electrochemical luminescence;Change yield of electro synthesis reaction etc.(It is turned into filial piety ultrasound electrifications And its progress [J] Shaanxi Normal University's journals (natural science edition), 2001,29(2):103-109).
At present, ultrasonic electrochemical reactor can substantially be divided into ultrasonic bath and probe system two types, and two kinds of devices are each There is feature(Application [J] plating and finish of Cheng Jingquan, Yao Su the common vetch ultrasonic waves in electrochemistry, 2005,27(1):17- 19).
The ultrasonic electrochemical reactor built using ultrasonic bath, ultrasonic transducer is mainly fitted in be built-in with anode Plate(+ pole)And cathode plate(- pole)Electrolytic cell bottom it is built-up.Such as:The inventions such as the big turbulent waves of Xi'an building technology The method that permonosulphuric acid is prepared using ultrasonic electrochemical(Number of patent application: 2010145135.9)Pure platinum is equipped in a cell Anode and stereotype cathode, and by sulfonic group anion selective membrane separate anode and cathode, bottom of electrolytic tank add in ultrasonic wave.The party Method has easy method, reduction energy consumption than the method that conventional high concentration synthetic method prepares permonosulphuric acid, shortens reaction time and life Into anti-oxidant active it is higher the features such as.
Using the ultrasonic electrochemical reactor of ultrasonic probe system, ultrasonic probe will be mainly utilized(Ultrasonic head)Insertion electricity Solve the anode plate in slot(+ pole)And cathode plate(- pole)Between it is built-up.Such as:The one of the inventions such as the China of State of Zhao of Tongji University The ultrasonic electrochemical device and method of kind processing waste water(Number of patent application: 200710047061.3)Have using ultrasonic wave promotion The mass transport process of organic pollutants, while the adsorbance of pollutant on the anode electrode is controlled, the activity of electrode is kept, accelerates electrification Learn oxidizing reaction rate.
Although above-mentioned document realizes the synergistic effect of ultrasonic electrochemical with patent and similar technology, patent, method Process, improve reaction efficiency, but there are still defects and deficiency for technology:
First, DC power supply, electrode are mainly had according to the composition of the basic principle electrochemical appliance of electrolysis(Anode and cathode)Electrolyte Solution(Or fused electrolyte), and it is existing ultrasonic electrochemical device either ultra sonic bath slot type or being inserted into ultrasonic hair style The ultrasonic electrochemical reactor that electrolytic cell is formed, anode plate all in a cell(+ pole)And cathode plate(- pole)Between introduce One by ultrasonic head or positioned at the new electrode of the ultrasonic radiation plate of the bottom of electrolytic cell(Hereinafter referred to as applicator), this is by can be effective It is typically grounded to conduct the applicator of the metal of ultrasound or other are conductive/lead sound material composition, i.e. minus earth, to ensure electrically Equipment it is safe to use.The access of applicator in fact changes field regime in electrolytic cell so that the kinetics of electrochemistry Condition changes, it is possible to influence the reaction result of electrolytic cell.
Secondly as the effect of electrochemistry and ultrasonic cavitation in electrolytic cell, what the material of applicator was difficult to avoid that is corroded, The change of electrolyte response characteristic is caused, influences the result of reaction.
The content of the invention
To solve the above-mentioned problems, the present invention provides a kind of common cathode ultrasonic electrochemical devices.
The technical scheme is that:A kind of common cathode ultrasonic electrochemical device, including electrolytic cell, cathode plate, anode plate, Ultrasonic transducer, ultrasonic-frequency power supply, DC power supply are provided with cathode plate and anode plate, cathode plate and anode plate interval in electrolytic cell A certain distance, the one side of cathode plate are fixedly installed ultrasonic transducer, ultrasonic transducer be arranged on sealing cover and cathode plate it Between, sealing cover is covered on ultrasonic transducer and is integrated with cathode plate sealing;Ultrasonic transducer by front shroud, central electrode, Back shroud, the first piezoelectric chip, the second piezoelectric chip composition;Ultrasonic transducer is connected with ultrasonic-frequency power supply, ultrasonic-frequency power supply and direct current Power supply connects.
Further, the front shroud of the cathode plate and ultrasonic transducer connects to form common cathode.
Further, the one side of the front shroud is provided with central electrode, and the opposite side of central electrode is provided with back shroud, Central electrode is arranged between front shroud and back shroud.
Further, first piezoelectric chip is arranged between front shroud and central electrode, and the second piezoelectric chip is set Between central electrode and back shroud.
Further, the same axis of the front shroud, the first piezoelectric chip, central electrode, the second piezoelectric chip, back shroud Be provided on line for fastening bolt by bolt hole, ultrasonic transducer fastening bolt is by front shroud, the first piezoelectric chip, center Electrode, the second piezoelectric chip, back shroud are fixed integrally ultrasonic transducer.
Further, the electrolytic cell is made of electrically non-conductive material.
Further, the cathode plate is made with anode plate of stainless steel plate or titanium mesh.
Further, the sealing cover is made of waterproof electrically non-conductive material.
Beneficial effects of the present invention are:
Due to realizing the ground terminal and electrolytic negative plate of ultrasonic transducer(- pole)Common cathode structure, eliminate applicator to electricity The influence of electric field in slot is solved, is also corroded without applicator, the condition of the kinetics of electrochemistry will not be changed;It can play simultaneously The cleaning and degasification of electrode surface, the erosion of the depassivation of electrode surface, electrode surface accelerate liquid phase quality transmission, accelerate anti- The effects that answering rate, enhancing electrochemical luminescence, change electrochemical reaction yield preferably plays the efficiency of ultrasonic electrochemical.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structure diagram of the present invention.
Specific embodiment
The specific embodiment of the present invention is described further below in conjunction with the accompanying drawings, the present embodiment is not formed to the present invention Limitation.
As shown in Figure 1, a kind of common cathode ultrasonic electrochemical device, is changed including electrolytic cell 1, cathode plate 2, anode plate 3, ultrasound It can device, ultrasonic-frequency power supply 11, DC power supply 12.
Electrolytic cell 1 is made of electrically non-conductive material, and cathode plate 2 and anode plate 3, cathode plate 2 and anode are provided in electrolytic cell 1 Plate 3 is spaced a distance, and cathode plate 2 is with anode plate 3 by 10 × 5 × 0.1cm3Stainless steel plate or titanium mesh be made.
The one side of cathode plate 2 is provided with ultrasonic transducer, ultrasonic transducer by front shroud 5, central electrode 6, back shroud 7, First piezoelectric chip 8 is formed with the second piezoelectric chip 9, fastening bolt 10.
The front shroud 5 of ultrasonic transducer is the Ultrasonic Radiation output terminal of ultrasonic transducer, and conventional electrical is safe to use will Ask ground connection, the front shroud 5 of cathode plate 2 and ultrasonic transducer leads the Nian Jie glue sticking of sound or firm welding by common conductive so that The radiant output end of the ultrasonic wave of ultrasonic transducer(That is electrical ground)Common cathode is formed with cathode plate 2.
The one side of front shroud 5 is provided with central electrode 6, and the opposite side of central electrode 6 is provided with back shroud 7, central electrode 6 It is arranged between front shroud 5 and back shroud 7.The first piezoelectric chip 8, central electrode are provided between front shroud 5 and central electrode 6 The second piezoelectric chip 9 is provided between 6 and back shroud 7.First piezoelectric chip 8 and the second piezoelectric chip 9 can realize that electro-acoustic turns It changes.
Front shroud 5, the first piezoelectric chip 8, central electrode 6, the second piezoelectric chip 9, back shroud 7 same axis on set Have for fastening bolt 10 by bolt hole, ultrasonic transducer fastening bolt 10 is by front shroud 5, the first piezoelectric chip 8, middle electrocardio Pole 6, the second piezoelectric chip 9, back shroud 7 are fixed integrally ultrasonic transducer.
Sealing cover 4 is covered on ultrasonic transducer, and sealing cover 4 is made of waterproof electrically non-conductive material, and is sealed with cathode plate 2 It is integrated, ensures that ultrasonic transducer is isolated with the hydraulic seal in electrolytic cell 1.
Ultrasonic transducer is connected with ultrasonic-frequency power supply 11, and ultrasonic-frequency power supply 11 provides ultrasound-driven power supply for ultrasonic transducer, is surpassed 11 output frequency of acoustic-electric source is that 20kHz power is 0.3W/cm2Ultrasound, the ultrasonic-frequency power supply 11 of ultrasound-driven and DC power supply 12 Connection, DC power supply 12 provide DC power supply, 12 current stabilization of DC power supply output Faradaic current 10mA/cm for electrolysis2
When common cathode ultrasonic electrochemical device energization work, the cathode plate in electrolytic cell 1(- pole)2 and anode plate(+ pole) 3 are electrolysed under the driving of DC power supply 12;The ultrasonic radiation of ultrasonic transducer passes through front shroud 5 and cathode plate(- pole)2 act on electricity In solution, the cleaning of electrode surface and degasification, the erosion of the depassivation of electrode surface, electrode surface are played, liquid phase quality is accelerated to turn The effects that passing, accelerating reaction rate, enhance electrochemical luminescence, change electrochemical reaction yield.
After processing time 60min, the algae toxin concentration tested in water body drops to 0.02 μ g/L, with same experimental conditions The simple electrolysis concentration for the treatment of of lower no ultrasonication drops to 0.02 μ g/L institutes for the algae toxin concentration of the water containing algae toxin of 1 μ g/L Need Faradaic current 40mA/cm2, processing time 90min compare, needed for common cathode ultrasonic electrochemical device of the present invention Faradaic current is smaller, processing time is shorter, improve the efficiency of algae toxin in degradation water, embody advantages of the present invention.
The above described is only a preferred embodiment of the present invention, being not used in the limitation present invention, those skilled in the art can It is this to change or equally replace in the essence and protection domain of the present invention, to make various modifications or equivalent substitution to the present invention It changes and also should be regarded as in the protection domain of technical solution of the present invention.

Claims (8)

1. a kind of common cathode ultrasonic electrochemical device, it is characterised in that:Including electrolytic cell, cathode plate, anode plate, ultrasonic transduction Device, ultrasonic-frequency power supply, DC power supply, are provided with cathode plate and anode plate in electrolytic cell, cathode plate and anode plate interval it is certain away from From the one side of cathode plate is fixedly installed ultrasonic transducer, and ultrasonic transducer is arranged between sealing cover and cathode plate, sealing cover It is covered on ultrasonic transducer and is integrated with cathode plate sealing;Ultrasonic transducer is by front shroud, central electrode, back shroud, One piezoelectric chip, the second piezoelectric chip composition;Ultrasonic transducer is connected with ultrasonic-frequency power supply, and ultrasonic-frequency power supply is connected with DC power supply.
2. common cathode ultrasonic electrochemical device according to claim 1, it is characterised in that:The cathode plate and ultrasonic transduction The front shroud of device connects to form common cathode.
3. common cathode ultrasonic electrochemical device according to claim 2, it is characterised in that:The one side of the front shroud is set There is central electrode, the opposite side of central electrode is provided with back shroud, and central electrode is arranged between front shroud and back shroud.
4. common cathode ultrasonic electrochemical device according to claim 3, it is characterised in that:First piezoelectric chip is set Between front shroud and central electrode, the second piezoelectric chip is centrally disposed between electrode and back shroud.
5. common cathode ultrasonic electrochemical device according to claim 4, it is characterised in that:The front shroud, the first piezoelectricity Chip, central electrode, the second piezoelectric chip, back shroud same axis on be provided with for fastening bolt by bolt hole, surpass Front shroud, the first piezoelectric chip, central electrode, the second piezoelectric chip, back shroud are fixed as one by sonic transducer fastening bolt Form ultrasonic transducer.
6. common cathode ultrasonic electrochemical device according to claim 5, it is characterised in that:The electrolytic cell is by non-conductive material Material is formed.
7. common cathode ultrasonic electrochemical device according to claim 6, it is characterised in that:The cathode plate and anode plate are equal It is made of stainless steel plate or titanium mesh.
8. common cathode ultrasonic electrochemical device according to claim 7, it is characterised in that:The sealing cover is not led by waterproof Electric material is formed.
CN201711434340.5A 2017-12-26 2017-12-26 Common cathode ultrasonic electrochemical device Active CN108048864B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111092033A (en) * 2019-12-24 2020-05-01 广东工业大学 Ultrasonic electrochemical composite wafer cleaning device and cleaning method thereof
CN111286747A (en) * 2018-12-10 2020-06-16 彭志军 Built-in ultrasonic electrolysis system oxyhydrogen device
CN112981435A (en) * 2020-12-10 2021-06-18 中核二七二铀业有限责任公司 Method for treating electrolytic bath anode effect
WO2024040295A1 (en) * 2022-08-23 2024-02-29 Royal Melbourne Institute Of Technology An electrolytic cell and method of electrolysis

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CN101956211A (en) * 2010-10-08 2011-01-26 褚礼政 Ultrasonic bubble removing electrolytic bath
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111286747A (en) * 2018-12-10 2020-06-16 彭志军 Built-in ultrasonic electrolysis system oxyhydrogen device
CN111092033A (en) * 2019-12-24 2020-05-01 广东工业大学 Ultrasonic electrochemical composite wafer cleaning device and cleaning method thereof
CN112981435A (en) * 2020-12-10 2021-06-18 中核二七二铀业有限责任公司 Method for treating electrolytic bath anode effect
CN112981435B (en) * 2020-12-10 2024-02-09 中核二七二铀业有限责任公司 Method for treating electrolytic bath anode effect
WO2024040295A1 (en) * 2022-08-23 2024-02-29 Royal Melbourne Institute Of Technology An electrolytic cell and method of electrolysis

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