CN107858712A - Water electrolysis pole plate nickel-plating additive - Google Patents
Water electrolysis pole plate nickel-plating additive Download PDFInfo
- Publication number
- CN107858712A CN107858712A CN201711405284.2A CN201711405284A CN107858712A CN 107858712 A CN107858712 A CN 107858712A CN 201711405284 A CN201711405284 A CN 201711405284A CN 107858712 A CN107858712 A CN 107858712A
- Authority
- CN
- China
- Prior art keywords
- pole plate
- nickel
- plating
- water electrolysis
- additive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/12—Electroplating: Baths therefor from solutions of nickel or cobalt
-
- 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
-
- 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 present invention relates to a kind of water electrolysis pole plate nickel-plating additive, including following component：10wt% to 25wt% hydroxycarboxylic acid or amino carboxylic acid, 5wt% to 15wt% lactic acid, 0.05wt% to 0.2wt% corrosion inhibiter, 0.02wt% to 0.1wt surfactant, 20wt% to 30wt% buffer, 0.2wt% to 2wt% brightener, remaining is water；The pH value of the additive is 4 to 5.5, and dosage of the additive in 1L plating solutions is 8ml to 15ml, belongs to metal deposition technical field.The water electrolysis pole plate nickel-plating additive of the present invention can make it that nickel coating is fine and close, uniform, bright, and bond strength is high, and corrosion resistance is stronger.
Description
Technical field
The auxiliary added when carrying out Nickel Plating Treatment the present invention relates to a kind of surface to carbon steel pole plate is molten, belongs to metal-plated
Coating technique field.
Background technology
Water electrolysis is water is decomposited hydrogen or oxygen in the presence of direct current.Electrolytic cell is in a whole set of water electrolysis equipment
One of its most crucial device.Industrially conventional water electrolyser presses rule by dozens of to individual electrolytic chamber up to a hundred as needed
Laminate composition.Each electrolytic chamber is by positive plate, oxygen catalysis electrode, choke barrier film, insulated enclosure pad, hydrogen catalysis electrode, the moon
Pole plate etc. forms.Anode plate and cathode plate generally use carbon steel steel plate is made.
Because the electrolyte of Strong acidic electrolyte composition has strong corrosivity to metal, so the electrolyte of electrolytic cell
It is general use concentration for 25% to 30% potassium hydroxide or sodium hydroxide solution.In the presence of electric field, potassium ion or sodium from
Son moves to negative pole, and hydroxide ion moves to positive pole, so as to separate out hydrogen and oxygen.In order to reduce overpotential, electric energy is reduced
Consumption, the operating temperature of electrolytic cell are generally 85 DEG C to 90 DEG C.Such alkali concn and temperature easily cause alkali to carbon steel steel plate
Erosion, so preservative treatment must be carried out to anode plate and cathode plate.Because the caustic corrosion resistance performance of pure nickel is very excellent, at present, water
Cathode-anode plate of the carbon steel steel plate of electrolysis industry generally use nickel plating as water electrolyser.
Shown according to result of study, because the carbon steel pole plate of nickel plating actually and can not possibly be plated nickel dam and be completely coated with,
Inevitably there is micropore on nickel coating.When in the electrolyte that pole plate is in harmful ion formation, these harmful ions can
Into in the micropore of nickel coating, and it is enriched with micropore, hydrolysis occurs with iron ion, is formed the extremely strong acid of corrosivity, hold
It is continuous that pole plate is corroded.Further, since nickel coating is a kind of coating of cathodic, the standard electrode potential of nickel is -0.25V,
The standard electrode potential of iron is -0.44V, and nickel coating can form a pair of galvanic couples with plain steel, when they are simultaneously exposed to electrolysis
Electrochemical reaction will occur in liquid.Iron in micropore is anode, loses electronics and is dissolved；Nickel outside is negative electrode, is obtained
Electronics, and water electrolysis is released into hydrogen.It follows that the possibility pole being corroded using nickel plating carbon steel pole plate made of general technology
Greatly.Once serious corrosion, which occurs, in pole plate can cause hydrogen or oxygen gas mutually to be gone here and there, leak alkali and electrical short, it is more likely that set off an explosion,
Threat personnel and the safety of equipment.
The main salt of conventional nickel-plating liquid is nickel sulfate, and reducing agent is sodium hypophosphite, nickel-plating liquid as single use, is obtained
Quality of coating it is not high.In order to improve the finish of coating and corrosion resistance, at present, in general way is added in nickel-plating liquid
A small amount of complexing agent, corrosion inhibiter, surfactant, to improve the quality of coating, but effect is very different, and cost compared with
It is high.
The content of the invention
The technical problem to be solved in the present invention is to propose that one kind can make it that nickel coating is fine and close, uniform, bright, with reference to strong
Degree is high, the stronger water electrolysis pole plate nickel-plating additive of corrosion resistance.
The present invention is to solve the technical scheme that above-mentioned technical problem proposes to be：A kind of water electrolysis pole plate nickel-plating additive, bag
Include following component：10wt% to 25wt% hydroxycarboxylic acid or amino carboxylic acid, 5wt% to 15wt% lactic acid, 0.05wt% is extremely
0.2wt% corrosion inhibiter, 0.02wt% to 0.1wt surfactant, 20wt% to 30wt% buffer, 0.2wt% is extremely
2wt% brightener, remaining is water；The pH value of the additive is 4 to 5.5；Dosage of the additive in 1L plating solutions be
8ml to 15ml.
Above-mentioned hydroxycarboxylic acid is Alpha-hydroxy acetic acid or 2- hydroxy propane tricarboxylic acids；The amino carboxylic acid be diamino monocarboxylate or
1-aminocyclopropane-1-carboxylic acid.
Above-mentioned corrosion inhibiter is the one or more in BTA, KI, methylbenzotrazole.
Above-mentioned surfactant is one kind in lauryl sodium sulfate, neopelex or n-octyl sodium sulphate
It is or a variety of.
Above-mentioned additive pH adjusting agent, adjust pH value；The pH adjusting agent is in sodium hydroxide, ammoniacal liquor or glacial acetic acid
It is one or more.
Above-mentioned buffer is sodium acetate.
Above-mentioned brightener is Isosorbide-5-Nitrae-butynediols or triarylmethane dye.
The present invention has positive effect：Employed in the water electrolysis pole plate nickel-plating additive of the present invention by hydroxycarboxylic acid or
The compound complex agent of amino carboxylic acid and lactic acid composition, ternary complexes can be generated with nickel ion.Wherein hydroxycarboxylic acid or amino
Carboxylic acid has two or more coordination courtyards, it is more fixed to be formed in aqueous with nickel ion as the first ligand
Chelate, and due to the effect into ring strain and steric hindrance, formed five, the chelate of hexatomic ring it is the most stable；
Lactic acid takes the remaining co-ordination positions of nickel ion as the second ligand, so that ternary complexes structure is more accurate,
So it is more stable, be advantageous to improve the corrosion resistance of coating.The additive of the present invention is with corrosion inhibiter, surfactant, light
Agent can further improve the corrosion resistance of nickel coating as auxiliary element, corrosion inhibiter, and surfactant can significantly improve plating
The surface tension of nickel dam make it that nickel coating is more uniform, fine and close, and brightener can improve the brightness of nickel plating layer surface.
Embodiment
(embodiment 1)
The water electrolysis pole plate nickel-plating additive of the present embodiment, including following component：20wt% Alpha-hydroxy acetic acid, 10wt%
Lactic acid, 0.1wt% BTA, 0.3wt% lauryl sodium sulfate, 20wt% sodium acetate, 1wt% Isosorbide-5-Nitrae-
Butynediols, remaining is water, is 4 with sodium hydroxide regulation pH value.
The water electrolysis pole plate nickel-plating additive of the present embodiment, in use, the electricity being formulated to nickel sulfate and sodium hypophosphite
The 10ml/L additive is added in plating solution, and presses plating solution depletion rate, is continuously replenished.
(embodiment 2)
The water electrolysis pole plate nickel-plating additive of the present embodiment, including following component：15wt% 2- hydroxy propane tricarboxylic acids,
15wt% lactic acid, 0.2wt% KI, 0.2wt% neopelex, 25wt% sodium acetate, 1.5wt%
Isosorbide-5-Nitrae-butynediols, remaining is water, with ammoniacal liquor regulation pH value be 4.5.
The water electrolysis pole plate nickel-plating additive of the present embodiment, in use, the electricity being formulated to nickel sulfate and sodium hypophosphite
12ml/L is added in plating solution, and presses plating solution depletion rate, is continuously replenished.
(embodiment 3)
The water electrolysis pole plate nickel-plating additive of the present embodiment, including following component：25wt% diamino monocarboxylate,
12wt% lactic acid, 0.05wt% methylbenzotrazole, 0.1wt% n-octyl sodium sulphate, 30wt% sodium acetate,
0.8wt% triarylmethane dye, remaining is water, is 5 with glacial acetic acid regulation pH value.
The water electrolysis pole plate nickel-plating additive of the present embodiment, in use, the electricity being formulated to nickel sulfate and sodium hypophosphite
8ml/L is added in plating solution, and presses plating solution depletion rate, is continuously replenished.
(embodiment 4)
The water electrolysis pole plate nickel-plating additive of the present embodiment, including following component：15wt% 1-aminocyclopropane-1-carboxylic acid,
8wt% lactic acid, 0.1wt% KI, 0.8wt% neopelex, 20wt% sodium acetate, 1.5wt%
Isosorbide-5-Nitrae-butynediols, remaining is water, with ammoniacal liquor regulation pH value be 4.1.
The water electrolysis pole plate nickel-plating additive of the present embodiment, in use, the electricity being formulated to nickel sulfate and sodium hypophosphite
15ml/L is added in plating solution, and presses plating solution depletion rate, is continuously replenished.
The pole plate after Nickel Plating Treatment is carried out to the water electrolysis pole plate nickel-plating additive using embodiment 1 to 4, then carries out salt
Mist is tested.Sample is put into salt spray test chamber, using 5% NaCl solution, humidity 70%, temperature is 50 DEG C, continuously
240h, polar board surface is without obvious corrosion phenomenon.
Claims (5)
1. a kind of water electrolysis pole plate nickel-plating additive, it is characterised in that including following component：10wt% to 25wt% Alpha-hydroxy
Acetic acid, 5wt% to 15wt% lactic acid, 0.05wt% to 0.2wt% corrosion inhibiter, 0.1wt% to 0.8wt% surface-active
Agent, 20wt% to 30wt% buffer, 0.2wt% to 2wt% brightener, remaining is water；The pH value of the additive is 4
To 5.5；Dosage of the additive in 1L plating solutions is 8ml to 15ml；The buffer is sodium acetate.
2. water electrolysis pole plate nickel-plating additive according to claim 1, it is characterised in that：The corrosion inhibiter is the nitrogen of benzo three
One or more in azoles, KI, methylbenzotrazole.
3. water electrolysis pole plate nickel-plating additive according to claim 1, it is characterised in that：The surfactant is 12
One or more in sodium alkyl sulfate, neopelex or n-octyl sodium sulphate.
4. water electrolysis pole plate nickel-plating additive according to claim 1, it is characterised in that：The additive is adjusted with pH
Agent, adjust pH value；The pH adjusting agent is the one or more in sodium hydroxide, ammoniacal liquor or glacial acetic acid.
5. water electrolysis pole plate nickel-plating additive according to claim 1, it is characterised in that：The brightener is Isosorbide-5-Nitrae-butine
Glycol or triarylmethane dye.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711405284.2A CN107858712A (en) | 2017-12-22 | 2017-12-22 | Water electrolysis pole plate nickel-plating additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711405284.2A CN107858712A (en) | 2017-12-22 | 2017-12-22 | Water electrolysis pole plate nickel-plating additive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107858712A true CN107858712A (en) | 2018-03-30 |
Family
ID=61707051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711405284.2A Pending CN107858712A (en) | 2017-12-22 | 2017-12-22 | Water electrolysis pole plate nickel-plating additive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107858712A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109023451A (en) * | 2018-08-14 | 2018-12-18 | 苏州润纳斯纳米科技有限公司 | A kind of wear resistant friction reducing of component of machine is lengthened the life nano-deposit formula and processing method |
| CN109183097A (en) * | 2018-11-08 | 2019-01-11 | 天津亿鑫通金属表面处理有限公司 | A kind of continuous electroplating of uniform color stainless steel coating electroplate liquid and preparation method |
-
2017
- 2017-12-22 CN CN201711405284.2A patent/CN107858712A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109023451A (en) * | 2018-08-14 | 2018-12-18 | 苏州润纳斯纳米科技有限公司 | A kind of wear resistant friction reducing of component of machine is lengthened the life nano-deposit formula and processing method |
| CN109183097A (en) * | 2018-11-08 | 2019-01-11 | 天津亿鑫通金属表面处理有限公司 | A kind of continuous electroplating of uniform color stainless steel coating electroplate liquid and preparation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102162110B (en) | Methyl sulfonate tinning electrolyte and tinning method of steel strip or steel plate | |
| CN102828210B (en) | Method for electroplating zinc-nickel alloy through neodymium iron boron magnet ionic liquid | |
| CN104109885B (en) | Weak-alkalinity pyrophosphate solution and technology for electroplating bright tin | |
| CN103088375B (en) | Water electrolysis pole plate nickel plating additive | |
| CN103014787B (en) | A kind of copper electroplating liquid and electroplating technology thereof | |
| CN103088333B (en) | Water electrolysis pole plate surface treatment liquid | |
| CN110760904A (en) | Cyanide-free alkaline cuprous copper plating additive | |
| CN102877114A (en) | Stripping agent for stainless steel electroplating rack | |
| CN107858712A (en) | Water electrolysis pole plate nickel-plating additive | |
| CN103409785B (en) | A kind of titanium alloy surface reduces the nano coating preparation method of sea organism attachment | |
| CN103088332A (en) | Water electrolysis pole plate surface coating liquid | |
| CN102719864A (en) | Method for preparing cerium-containing zinc coating | |
| CN103088358B (en) | Surface treatment method before water electrolysis pole plate plating | |
| CN104419954A (en) | Method for electroplating zinc-nickel alloy by use of acidic plating solution | |
| CN104419953A (en) | Process for electroplating zinc-nickel alloy to surface of iron matrix | |
| JP6517501B2 (en) | Strike copper plating solution and strike copper plating method | |
| CN104532266B (en) | Corrosion resistant water electrolysis polar board surface processing method | |
| Zhu et al. | Copper coating electrodeposited directly onto AZ31 magnesium alloy | |
| CN103409786B (en) | A kind ofly reduce the nano coating preparation method of sea organism attachment at titanium alloy surface | |
| CN107653464A (en) | A kind of anode activation agent for non-cyanide silver coating and preparation method thereof | |
| CN103088350B (en) | Water electrolysis pole plate surface treatment method | |
| CN104451724B (en) | The water electrolysis polar board surface processing method of the corrosion resistance after pole plate nickel plating can be improved | |
| CN103046051B (en) | Surface corrosion processing method before water electrolysis pole plate plating | |
| CN104313601B (en) | Water electrolysis polar board surface processing method | |
| CN104313602B (en) | The water electrolysis polar board surface processing method of diaphragm can be formed at polar board surface |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180330 |