CN104505559A - Alkaline aluminum power battery anode composite corrosion inhibitor and preparation method of electrolyte - Google Patents
Alkaline aluminum power battery anode composite corrosion inhibitor and preparation method of electrolyte Download PDFInfo
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- CN104505559A CN104505559A CN201410731942.7A CN201410731942A CN104505559A CN 104505559 A CN104505559 A CN 104505559A CN 201410731942 A CN201410731942 A CN 201410731942A CN 104505559 A CN104505559 A CN 104505559A
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- 239000003112 inhibitor Substances 0.000 title claims abstract description 82
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 68
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 238000005260 corrosion Methods 0.000 title claims abstract description 62
- 230000007797 corrosion Effects 0.000 title claims abstract description 61
- 239000003792 electrolyte Substances 0.000 title claims abstract description 57
- 239000002131 composite material Substances 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 229920000159 gelatin Polymers 0.000 claims abstract description 85
- 235000019322 gelatine Nutrition 0.000 claims abstract description 85
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 66
- 239000004094 surface-active agent Substances 0.000 claims abstract description 49
- 108010010803 Gelatin Proteins 0.000 claims abstract description 43
- 239000008273 gelatin Substances 0.000 claims abstract description 43
- 235000011852 gelatine desserts Nutrition 0.000 claims abstract description 43
- 229910000416 bismuth oxide Inorganic materials 0.000 claims abstract description 33
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000000292 calcium oxide Substances 0.000 claims abstract description 33
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 33
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000011787 zinc oxide Substances 0.000 claims abstract description 33
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 101
- 239000000975 dye Substances 0.000 claims description 80
- 239000001828 Gelatine Substances 0.000 claims description 42
- 239000003513 alkali Substances 0.000 claims description 34
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 32
- 239000000203 mixture Substances 0.000 claims description 28
- 239000000843 powder Substances 0.000 claims description 24
- 238000003756 stirring Methods 0.000 claims description 24
- 235000019441 ethanol Nutrition 0.000 claims description 8
- 230000010355 oscillation Effects 0.000 claims description 8
- 239000002202 Polyethylene glycol Substances 0.000 claims description 7
- COHYTHOBJLSHDF-UHFFFAOYSA-N indigo powder Natural products N1C2=CC=CC=C2C(=O)C1=C1C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-UHFFFAOYSA-N 0.000 claims description 7
- 229920001223 polyethylene glycol Polymers 0.000 claims description 7
- 235000000177 Indigofera tinctoria Nutrition 0.000 claims description 5
- 239000013078 crystal Substances 0.000 claims description 5
- 229940097275 indigo Drugs 0.000 claims description 5
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims description 4
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims description 4
- KFZUDNZQQCWGKF-UHFFFAOYSA-M sodium;4-methylbenzenesulfinate Chemical compound [Na+].CC1=CC=C(S([O-])=O)C=C1 KFZUDNZQQCWGKF-UHFFFAOYSA-M 0.000 claims description 4
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- MCPLVIGCWWTHFH-UHFFFAOYSA-L methyl blue Chemical compound [Na+].[Na+].C1=CC(S(=O)(=O)[O-])=CC=C1NC1=CC=C(C(=C2C=CC(C=C2)=[NH+]C=2C=CC(=CC=2)S([O-])(=O)=O)C=2C=CC(NC=3C=CC(=CC=3)S([O-])(=O)=O)=CC=2)C=C1 MCPLVIGCWWTHFH-UHFFFAOYSA-L 0.000 claims description 3
- 239000012153 distilled water Substances 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 239000012670 alkaline solution Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract 2
- 239000002639 bone cement Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 26
- 239000004411 aluminium Substances 0.000 description 14
- 229910000838 Al alloy Inorganic materials 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 230000007935 neutral effect Effects 0.000 description 3
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000013268 sustained release Methods 0.000 description 1
- 239000012730 sustained-release form Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M12/00—Hybrid cells; Manufacture thereof
- H01M12/04—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type
- H01M12/06—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Primary Cells (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
The invention relates to an alkaline aluminum power battery anode composite corrosion inhibitor and a preparation method of electrolyte and belongs to the technical field of battery fabrication. The composite corrosion inhibitor comprises an inorganic corrosion inhibitor, an organic corrosion inhibitor and a dye, wherein the inorganic corrosion inhibitor comprises the following raw materials by concentration in an alkaline electrolyte: 0.01-0.2mol/L of zinc oxide, 0.001-0.03mol/L of calcium oxide and 0.001-0.1mol/L of bismuth oxide; the organic corrosion inhibitor comprises the following raw materials in percentage by weight: 0.001-0.03wt% of gelatin, 0.001-0.03wt% of bone glue and 0.05-0.5wt% of an organic surfactant; and the dye is 0.001-0.01wt% of an inorganic dye. According to the alkaline aluminum power battery anode composite corrosion inhibitor, self-corrosion of an aluminum power battery anode in an alkaline solution can be effectively controlled; and relatively high electrochemical activity of the anode can also be ensured.
Description
Technical field
The invention belongs to battery manufacture technology field, relate to the preparation method of a kind of alkaline aluminum electrokinetic cell anodic inhibitor and alkaline electrolyte.
Background technology
Aluminium-air cell is negative pole with aluminum or aluminum alloy, take air electrode as positive pole, with alkaline solution or Neutral Chloride compound, if the solution such as sodium chloride, potassium chloride is the semi-fuel cell of electrolyte composition.Aluminium-air cell has the following advantages: first the electrochemical equivalent of aluminium is high, is 2.98Ah/g, is only second to the 3.86Ah/g of lithium, much larger than the 0.82Ah/g of zinc; Secondly, its theoretical voltage is higher, and energy density is large, and the theoretical voltage of aluminium-air-fuel battery is 2.71V, and theoretical specific energy can up to 8100Wh/Kg, and energy density is 47.5 times of lead-acid battery; 3rd, reactant and product are all nontoxic, and in course of reaction, unharmful substance produces, environmentally friendly.
Adopt neutral solution when being electrolyte, aluminium electrode little from corrosion rate, there is sufficiently high specific energy density.But because aluminium surface exists oxide-film, the reactivity of aluminium is caused significantly to reduce, the product of aluminium electrode in neutral electrolyte is gelatinous aluminum hydroxide precipitation simultaneously, along with reaction is carried out being deposited in electrode surface accumulation, resistance is increased, electrode polarization is serious, causes cell voltage to decline, and specific power reduces.When adopting alkaline solution to be electrolyte, the oxide-film of aluminium electrode surface is dissolved in electrolyte, and aluminium has very high activity, has very high specific energy density and specific power density, thus can provide very large output current density and power output.But aluminium anodes is very fast from corrosion rate in alkaline solution, and produces a large amount of hydrogen, makes the utilance of anode significantly reduce, especially work under high current density condition, its steady operation current potential calibration, anode polarization is serious, makes should being restricted of aluminium-air cell.Active for improving aluminum alloy anode, ensure its good corrosion resisting property simultaneously, the decay resistance improving anode by preparing aluminum alloy anode on the one hand, improve the activity of anode simultaneously, can add in the electrolytic solution on the other hand corrosion inhibiter to reduce aluminium anodes from corrosion rate, keep aluminium anodes to have certain electro-chemical activity simultaneously.
Aluminium anodes corrosion inhibiter mainly contains inorganic inhibitor and organic inhibitor, and the research of the type battery Anodic corrosion inhibiter is main mainly with single corrosion inhibiter, but the electro-chemical activity of anode can be made to reduce while raising aluminium anodes activity; And when using single corrosion inhibiter, limitedly can only improve the corrosion resisting property of anode material, the engineering being therefore difficult to meet alkaline aluminum electrokinetic cell requires summary of the invention.And use composite corrosion inhibitor, not only can increase substantially the corrosion resistance of aluminium alloy, antianode activity influence is less simultaneously.
Summary of the invention
The object of the invention is to solve the deficiencies in the prior art, the preparation method of a kind of alkaline aluminium-air force galvanic anode sustained release agent and electrolyte is provided, this corrosion inhibiter effectively can suppress the certainly corrosion of aluminium anodes in alkaline electrolyte, holding anode has certain electro-chemical activity simultaneously, and the utilance of aluminium anodes is significantly improved.
The technical solution used in the present invention is as follows:
A kind of alkaline aluminum electrokinetic cell anodic composite corrosion inhibitor, described composite corrosion inhibitor comprises inorganic inhibitor, organic inhibitor and dyestuff, and described inorganic inhibitor comprises zinc oxide, calcium oxide and bismuth oxide; Described organic inhibitor comprises gelatin, gelatine and organic surface active agent; Described dyestuff is organic dyestuff; The concentration of described each composition in alkaline electrolyte is respectively: zinc oxide 0.01-0.2mol/L, calcium oxide 0.001-0.03mol/L, bismuth oxide 0.001-0.1mol/L, gelatin 0.001-0.03%wt, gelatine 0.001-0.03%wt, organic surface active agent 0.05-0.5%wt and organic dyestuff 0.001-0.01%wt.
Further, preferably described organic surface active agent is the mixture of one or more in lauryl sodium sulfate, Sodium Polyacrylate, SPTS, neopelex and polyethylene glycol; During mixture, its concrete ratio does not do requirement.
Further, preferably described organic dyestuff is the mixture of one or more in crystal violet, indigo and methyl blue; During mixture, its concrete ratio does not do requirement.
The present invention also provides a kind of alkaline aluminum electrokinetic cell alkaline electrolyte, comprises above-mentioned alkaline aluminum electrokinetic cell anodic composite corrosion inhibitor; Described electrolyte is the composition containing following concentration in alkali lye: zinc oxide 0.01-0.2mol/L, calcium oxide 0.001-0.03mol/L, bismuth oxide 0.001-0.1mol/L, gelatin 0.001-0.03%wt, gelatine 0.001-0.03%wt, organic surface active agent 0.05-0.5%wt and organic dyestuff 0.001-0.01%wt.
Alkali lye described in technical solution of the present invention is the NaOH solution of 1-8mol/L.
Further, preferably gelatin concentration is 0.006%wt, and gelatine concentration is 0.004%wt.
Further, preferably described alkali lye is the NaOH solution of 4mol/L.
The preparation method of above-mentioned alkaline aluminum electrokinetic cell alkaline electrolyte, comprises the following steps:
Step (1), mixes zinc oxide, calcium oxide and bismuth oxide, then grind into powder;
Step (2), is dissolved in organic dyestuff in absolute ethyl alcohol, makes organic dye solution; Described organic dyestuff and the mass ratio of ethanol are 1:9;
Step (3), the powder that step (1) obtains is joined in alkali lye, stir and ultrasonic oscillation, powder is fully dissolved, then gelatin, gelatine and surfactant is added, place 2-3h, stirring makes gelatin, gelatine and surfactant fully dissolve, finally add the organic dye solution that step (2) obtains, stir, by evaporating and add the method adjustment liquor capacity of distilled water, make liquor capacity equal the initial volume of alkali lye, namely obtain the alkaline aluminum electrokinetic cell alkaline electrolyte containing composite corrosion inhibitor.
compared with prior art, its beneficial effect is in the present invention:
(1) composite corrosion inhibitor of the present invention effectively can suppress the certainly corrosion of aluminum electrokinetic cell anodic in alkaline solution, can ensure again the electro-chemical activity that anode is higher;
(2) the present invention is easy to recycling after using containing the electrolyte of composite corrosion inhibitor;
(3) composite corrosion inhibitor cost of the present invention is low, nontoxicly has no irritating odor, and using method is simple.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
It will be understood to those of skill in the art that the following example only for illustration of the present invention, and should not be considered as limiting scope of the present invention.Unreceipted concrete technology or condition person in embodiment, according to the technology described by the document in this area or condition or carry out according to product description.Agents useful for same or the unreceipted production firm person of instrument, being can by buying the conventional products obtained.
Embodiment 1
A kind of alkaline aluminum electrokinetic cell anodic composite corrosion inhibitor, described composite corrosion inhibitor comprises inorganic inhibitor, organic inhibitor and dyestuff, and described inorganic inhibitor comprises zinc oxide, calcium oxide and bismuth oxide; Described organic inhibitor comprises gelatin, gelatine and organic surface active agent; Described dyestuff is organic dyestuff; The concentration of described each composition in alkaline electrolyte is respectively: zinc oxide 0.1mol/L, calcium oxide 0.01mol/L, bismuth oxide 0.001mol/L, gelatin 0.001%wt, gelatine 0.001%wt, organic surface active agent 0.05%wt, organic dyestuff 0.001%wt.
Organic surface active agent described in the present embodiment is neopelex, and organic dyestuff is crystal violet.
The present embodiment alkaline aluminum electrokinetic cell alkaline electrolyte, comprises above-mentioned alkaline aluminum electrokinetic cell anodic composite corrosion inhibitor; Described electrolyte is the composition containing following concentration in alkali lye: zinc oxide 0.1mol/L, calcium oxide 0.01mol/L, bismuth oxide 0.001mol/L, gelatin 0.001%wt, gelatine 0.001%wt, organic surface active agent 0.05%wt, organic dyestuff 0.001%wt.
Alkali lye described in the present embodiment is the NaOH solution of 1mol/L.
The preparation method of the present embodiment alkaline aluminum electrokinetic cell alkaline electrolyte, comprises the following steps:
Step (1), mixes zinc oxide, calcium oxide and bismuth oxide, then grind into powder;
Step (2), is dissolved in organic dyestuff in absolute ethyl alcohol, makes organic dye solution; Described organic dyestuff and the mass ratio of ethanol are 1:9;
Step (3), the powder that step (1) obtains is joined in alkali lye, stirs and ultrasonic oscillation, powder is fully dissolved, then gelatin, gelatine and surfactant is added, place 2h, rear stirring makes gelatin, gelatine and surfactant fully dissolve, and finally adds the organic dye solution that step (2) obtains, stir, and adjust liquor capacity, make liquor capacity equal the initial volume of alkali lye, namely obtain the alkaline aluminum electrokinetic cell alkaline electrolyte containing composite corrosion inhibitor.
Embodiment 2
A kind of alkaline aluminum electrokinetic cell anodic composite corrosion inhibitor, described composite corrosion inhibitor comprises inorganic inhibitor, organic inhibitor and dyestuff, and described inorganic inhibitor comprises zinc oxide, calcium oxide and bismuth oxide; Described organic inhibitor comprises gelatin, gelatine and organic surface active agent; Described dyestuff is organic dyestuff; The concentration of described each composition in alkaline electrolyte is respectively: zinc oxide 0.01mol/L, calcium oxide 0.03mol/L, bismuth oxide 0.1mol/L, gelatin 0.03%wt, gelatine 0.03%wt, organic surface active agent 0.5%wt, organic dyestuff 0.01%wt.
Organic surface active agent described in the present embodiment is the mixture of neopelex and polyethylene glycol, and its mass ratio is 1:1, and described organic dyestuff is crystal violet.
The present embodiment alkaline aluminum electrokinetic cell alkaline electrolyte, comprises above-mentioned alkaline aluminum electrokinetic cell anodic composite corrosion inhibitor; Described electrolyte is the composition containing following concentration in alkali lye: zinc oxide 0.01mol/L, calcium oxide 0.03mol/L, bismuth oxide 0.1mol/L, gelatin 0.03%wt, gelatine 0.03%wt, organic surface active agent 0.5%wt, organic dyestuff 0.01%wt.
Alkali lye described in the present embodiment is the NaOH solution of 8mol/L.
The preparation method of the present embodiment alkaline aluminum electrokinetic cell alkaline electrolyte, comprises the following steps:
Step (1), mixes zinc oxide, calcium oxide and bismuth oxide, then grind into powder;
Step (2), is dissolved in organic dyestuff in absolute ethyl alcohol, makes organic dye solution; Described organic dyestuff and the mass ratio of ethanol are 1:9;
Step (3), the powder that step (1) obtains is joined in alkali lye, stirs and ultrasonic oscillation, powder is fully dissolved, then gelatin, gelatine and surfactant is added, place 3h, rear stirring makes gelatin, gelatine and surfactant fully dissolve, and finally adds the organic dye solution that step (2) obtains, stir, and adjust liquor capacity, make liquor capacity equal the initial volume of alkali lye, namely obtain the alkaline aluminum electrokinetic cell alkaline electrolyte containing composite corrosion inhibitor.
Embodiment 3
A kind of alkaline aluminum electrokinetic cell anodic composite corrosion inhibitor, described composite corrosion inhibitor comprises inorganic inhibitor, organic inhibitor and dyestuff, and described inorganic inhibitor comprises zinc oxide, calcium oxide and bismuth oxide; Described organic inhibitor comprises gelatin, gelatine and organic surface active agent; Described dyestuff is organic dyestuff; The concentration of described each composition in alkaline electrolyte is respectively: zinc oxide 0.2mol/L, calcium oxide 0.001mol/L, bismuth oxide 0.001mol/L, gelatin 0.006%wt, gelatine 0.004%wt, organic surface active agent 0.1%wt, organic dyestuff 0.005%wt.
Organic surface active agent described in the present embodiment is Sodium Polyacrylate, neopelex and polyethylene glycol, and its mass ratio is 1:1:1.Described organic dyestuff is crystal violet and indigo mixture, and its mass ratio is 1:3.
The present embodiment alkaline aluminum electrokinetic cell alkaline electrolyte, comprises above-mentioned alkaline aluminum electrokinetic cell anodic composite corrosion inhibitor; Described electrolyte is the composition containing following concentration in alkali lye: zinc oxide 0.2mol/L, calcium oxide 0.001mol/L, bismuth oxide 0.001mol/L, gelatin 0.006%wt, gelatine 0.004%wt, organic surface active agent 0.1%wt, organic dyestuff 0.005%wt.
Alkali lye described in the present embodiment is the NaOH solution of 4mol/L.
The preparation method of the present embodiment alkaline aluminum electrokinetic cell alkaline electrolyte, comprises the following steps:
Step (1), mixes zinc oxide, calcium oxide and bismuth oxide, then grind into powder;
Step (2), is dissolved in organic dyestuff in absolute ethyl alcohol, makes organic dye solution; Described organic dyestuff and the mass ratio of ethanol are 1:9;
Step (3), the powder that step (1) obtains is joined in alkali lye, stirs and ultrasonic oscillation, powder is fully dissolved, then gelatin, gelatine and surfactant is added, place 2.3h, rear stirring makes gelatin, gelatine and surfactant fully dissolve, and finally adds the organic dye solution that step (2) obtains, stir, and adjust liquor capacity, make liquor capacity equal the initial volume of alkali lye, namely obtain the alkaline aluminum electrokinetic cell alkaline electrolyte containing composite corrosion inhibitor.
Embodiment 4
A kind of alkaline aluminum electrokinetic cell anodic composite corrosion inhibitor, described composite corrosion inhibitor comprises inorganic inhibitor, organic inhibitor and dyestuff, and described inorganic inhibitor comprises zinc oxide, calcium oxide and bismuth oxide; Described organic inhibitor comprises gelatin, gelatine and organic surface active agent; Described dyestuff is organic dyestuff; The concentration of described each composition in alkaline electrolyte is respectively: zinc oxide 0.1mol/L, calcium oxide 0.001mol/L, bismuth oxide 0.005mol/L, gelatin 0.01%wt, gelatine 0.025%wt, organic surface active agent 0.12%wt, organic dyestuff 0.007%wt.
Organic surface active agent described in the present embodiment be in lauryl sodium sulfate, Sodium Polyacrylate and polyethylene glycol mixture, its mass ratio is 1:6:5.Described organic dyestuff is methyl blue.
The present embodiment alkaline aluminum electrokinetic cell alkaline electrolyte, comprises above-mentioned alkaline aluminum electrokinetic cell anodic composite corrosion inhibitor; Described electrolyte is the composition containing following concentration in alkali lye: zinc oxide 0.1mol/L, calcium oxide 0.001mol/L, bismuth oxide 0.005mol/L, gelatin 0.01%wt, gelatine 0.025%wt, organic surface active agent 0.16%wt, organic dyestuff 0.007%wt.
Alkali lye described in the present embodiment is the NaOH solution of 6mol/L.
The preparation method of the present embodiment alkaline aluminum electrokinetic cell alkaline electrolyte, comprises the following steps:
Step (1), mixes zinc oxide, calcium oxide and bismuth oxide, then grind into powder;
Step (2), is dissolved in organic dyestuff in absolute ethyl alcohol, makes organic dye solution; Described organic dyestuff and the mass ratio of ethanol are 1:9;
Step (3), the powder that step (1) obtains is joined in alkali lye, stirs and ultrasonic oscillation, powder is fully dissolved, then gelatin, gelatine and surfactant is added, place 2.5h, rear stirring makes gelatin, gelatine and surfactant fully dissolve, and finally adds the organic dye solution that step (2) obtains, stir, and adjust liquor capacity, make liquor capacity equal the initial volume of alkali lye, namely obtain the alkaline aluminum electrokinetic cell alkaline electrolyte containing composite corrosion inhibitor.
Embodiment 5
A kind of alkaline aluminum electrokinetic cell anodic composite corrosion inhibitor, described composite corrosion inhibitor comprises inorganic inhibitor, organic inhibitor and dyestuff, and described inorganic inhibitor comprises zinc oxide, calcium oxide and bismuth oxide; Described organic inhibitor comprises gelatin, gelatine and organic surface active agent; Described dyestuff is organic dyestuff; The concentration of described each composition in alkaline electrolyte is respectively: zinc oxide 0.1mol/L, calcium oxide 0.001mol/L, bismuth oxide 0.005mol/L, gelatin 0.018%wt, gelatine 0.022%wt, organic surface active agent 0.3%wt, organic dyestuff 0.009%wt.
Organic surface active agent described in the present embodiment be in SPTS and polyethylene glycol mixture, its mass ratio is 1:1.Described organic dyestuff is indigo.
The present embodiment alkaline aluminum electrokinetic cell alkaline electrolyte, comprises above-mentioned alkaline aluminum electrokinetic cell anodic composite corrosion inhibitor; Described electrolyte is the composition containing following concentration in alkali lye: zinc oxide 0.1mol/L, calcium oxide 0.001mol/L, bismuth oxide 0.005mol/L, gelatin 0.018%wt, gelatine 0.022%wt, organic surface active agent 0.3%wt, organic dyestuff 0.009%wt.
Alkali lye described in the present embodiment is the NaOH solution of 7mol/L.
The preparation method of the present embodiment alkaline aluminum electrokinetic cell alkaline electrolyte, comprises the following steps:
Step (1), mixes zinc oxide, calcium oxide and bismuth oxide, then grind into powder;
Step (2), is dissolved in organic dyestuff in absolute ethyl alcohol, makes organic dye solution; Described organic dyestuff and the mass ratio of ethanol are 1:9;
Step (3), the powder that step (1) obtains is joined in alkali lye, stirs and ultrasonic oscillation, powder is fully dissolved, then gelatin, gelatine and surfactant is added, place 2.7h, rear stirring makes gelatin, gelatine and surfactant fully dissolve, and finally adds the organic dye solution that step (2) obtains, stir, and adjust liquor capacity, make liquor capacity equal the initial volume of alkali lye, namely obtain the alkaline aluminum electrokinetic cell alkaline electrolyte containing composite corrosion inhibitor.
Embodiment 6
A kind of alkaline aluminum electrokinetic cell anodic composite corrosion inhibitor, described composite corrosion inhibitor comprises inorganic inhibitor, organic inhibitor and dyestuff, and described inorganic inhibitor comprises zinc oxide, calcium oxide and bismuth oxide; Described organic inhibitor comprises gelatin, gelatine and organic surface active agent; Described dyestuff is organic dyestuff; The concentration of described each composition in alkaline electrolyte is respectively: zinc oxide 0.1mol/L, calcium oxide 0.001mol/L, bismuth oxide 0.005mol/L, gelatin 0.015%wt, gelatine 0.028%wt, organic surface active agent 0.4%wt, organic dyestuff 0.003%wt.
Organic surface active agent described in the present embodiment be in SPTS and polyethylene glycol mixture, its mass ratio is 1:1.Described organic dyestuff is indigo.
The present embodiment alkaline aluminum electrokinetic cell alkaline electrolyte, comprises above-mentioned alkaline aluminum electrokinetic cell anodic composite corrosion inhibitor; Described electrolyte is the composition containing following concentration in alkali lye: zinc oxide 0.1mol/L, calcium oxide 0.001mol/L, bismuth oxide 0.005mol/L, gelatin 0.015%wt, gelatine 0.028%wt, organic surface active agent 0.4%wt, organic dyestuff 0.003%wt.
Alkali lye described in the present embodiment is the NaOH solution of 2mol/L.
The preparation method of the present embodiment alkaline aluminum electrokinetic cell alkaline electrolyte, comprises the following steps:
Step (1), mixes zinc oxide, calcium oxide and bismuth oxide, then grind into powder;
Step (2), is dissolved in organic dyestuff in absolute ethyl alcohol, makes organic dye solution; Described organic dyestuff and the mass ratio of ethanol are 1:9;
Step (3), the powder that step (1) obtains is joined in alkali lye, stirs and ultrasonic oscillation, powder is fully dissolved, then gelatin, gelatine and surfactant is added, place 2.9h, rear stirring makes gelatin, gelatine and surfactant fully dissolve, and finally adds the organic dyestuff ethanolic solution that step (2) obtains, stir, and adjust liquor capacity, make liquor capacity equal the initial volume of alkali lye, namely obtain the alkaline aluminum electrokinetic cell alkaline electrolyte containing composite corrosion inhibitor.
The electrolyte of embodiment of the present invention 1-6 product and 4mol/L NaOH is detected, at 20 DEG C aluminum alloy anode liberation of hydrogen speed and slowly-releasing rate as shown in table 1.
Table 1
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection range is defined by appending claims and equivalent thereof.
Claims (8)
1. an alkaline aluminum electrokinetic cell anodic composite corrosion inhibitor, is characterized in that, described composite corrosion inhibitor comprises inorganic inhibitor, organic inhibitor and dyestuff, and described inorganic inhibitor comprises zinc oxide, calcium oxide and bismuth oxide; Described organic inhibitor comprises gelatin, gelatine and organic surface active agent; Described dyestuff is organic dyestuff; The concentration of described each composition in alkaline electrolyte is respectively: zinc oxide 0.01-0.2mol/L, calcium oxide 0.001-0.03mol/L, bismuth oxide 0.001-0.1mol/L, gelatin 0.001-0.03%wt, gelatine 0.001-0.03%wt, organic surface active agent 0.05-0.5%wt and organic dyestuff 0.001-0.01%wt.
2. alkaline aluminum electrokinetic cell anodic composite corrosion inhibitor according to claim 1, it is characterized in that, described organic surface active agent is the mixture of one or more in lauryl sodium sulfate, Sodium Polyacrylate, SPTS, neopelex and polyethylene glycol.
3. alkaline aluminum electrokinetic cell anodic composite corrosion inhibitor according to claim 1, is characterized in that, described organic dyestuff is the mixture of one or more in crystal violet, indigo and methyl blue.
4. an alkaline aluminum electrokinetic cell alkaline electrolyte, is characterized in that, comprises alkaline aluminum electrokinetic cell anodic composite corrosion inhibitor according to claim 1; Described electrolyte is the composition containing following concentration in alkali lye: zinc oxide 0.01-0.2mol/L; Calcium oxide 0.001-0.03mol/L, bismuth oxide 0.001-0.1mol/L, gelatin 0.001-0.03%wt, gelatine 0.001-0.03%wt, organic surface active agent 0.05-0.5%wt and organic dyestuff 0.001-0.01%wt.
5. alkaline aluminum electrokinetic cell alkaline electrolyte according to claim 4, is characterized in that, described alkali lye is the NaOH solution of 1-8mol/L.
6. alkaline aluminum electrokinetic cell alkaline electrolyte according to claim 4, is characterized in that, gelatin concentration is 0.006%wt, and gelatine concentration is 0.004%wt.
7. alkaline aluminum electrokinetic cell alkaline electrolyte according to claim 6, is characterized in that, described alkali lye is the NaOH solution of 4mol/L.
8. the preparation method of the alkaline aluminum electrokinetic cell alkaline electrolyte in claim 4-7 described in any one, is characterized in that, comprise the following steps:
Step (1), mixes zinc oxide, calcium oxide and bismuth oxide, then grind into powder;
Step (2), is dissolved in organic dyestuff in absolute ethyl alcohol, makes organic dye solution; Described organic dyestuff and the mass ratio of ethanol are 1:9;
Step (3), the powder that step (1) obtains is joined in alkali lye, stir and ultrasonic oscillation, powder is fully dissolved, then gelatin, gelatine and surfactant is added, place 2-3h, stirring makes gelatin, gelatine and surfactant fully dissolve, finally add the organic dye solution that step (2) obtains, stir, by evaporating and add the method adjustment liquor capacity of distilled water, make liquor capacity equal the initial volume of alkali lye, namely obtain the alkaline aluminum electrokinetic cell alkaline electrolyte containing composite corrosion inhibitor.
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| B.SANYAL: "ORGANIC COMPOUNDS AS CORROSION INHIBITORS IN DIFFERENT ENCIRONMENTS-A REVIEW", 《PROGRESS IN ORGANIC COATINGS》 * |
| D.R.EGAN等: "Developments in electrode materials and electrolytes for aluminium一air batteries", 《JOURNAL OF POWER SOURCES》 * |
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