CN101518824B - Inorganic acid based collosol for preparing solar energy photo-thermal conversion absorbing membrane - Google Patents
Inorganic acid based collosol for preparing solar energy photo-thermal conversion absorbing membrane Download PDFInfo
- Publication number
- CN101518824B CN101518824B CN2009101113311A CN200910111331A CN101518824B CN 101518824 B CN101518824 B CN 101518824B CN 2009101113311 A CN2009101113311 A CN 2009101113311A CN 200910111331 A CN200910111331 A CN 200910111331A CN 101518824 B CN101518824 B CN 101518824B
- Authority
- CN
- China
- Prior art keywords
- nickel
- colloidal sol
- inorganic acid
- solar energy
- thermal conversion
- 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.)
- Expired - Fee Related
Links
Abstract
The invention provides an inorganic acid based collosol for preparing a solar energy photo-thermal conversion absorbing membrane: the collosol is prepared from the raw materials of organic or inorganic aluminium salt, nickel salt and chelating agent, wherein the raw materials are processed by the steps of alcoholysis and condensation reaction in ethanol or fatty alcohol, inorganic acid is used as peptizing agent for preparing aluminum collosol, and the aluminum collosol needs to be mixed with nickel collosol to prepare mixed collosol. The invention has the advantages of simple preparation method and easy raw material acquisition, the prepared membrane can be used for a thermal collection absorbing layer for the solar energy photo-thermal conversion, and the invention has low cost and does not pollute the environment.
Description
Technical field
The invention belongs to technical field of function materials, more specifically relate to a kind of solar energy photo-thermal conversion absorbing membrane colloidal sol based on the inorganic acid preparation.
Background technology
In decades, the solar spectral selective absorbing membrane is a ten minutes active subject in the solar energy utilization technique field always.At present, the preparation method of the solar spectral selective absorbing membrane of industrialization mainly is a magnetically controlled sputter method, because this method needs high vacuum, thereby needs the expensive production equipment and the plant maintenance expense of great number, input cost is big, has limited the popularization of solar thermal utilization.The nickel-alumina laminated film is a kind of metallic cermet films, has good selectivity and absorbs, and generally is used for the absorbed layer of solar energy optical-thermal conversion.At present, the preparation method of Ni-A12O3 film mainly is magnetron sputtering technique [Marerials Science and Engineering, A168 257-261 (1993)].Also reported with sol-gel method in addition and prepared this film, prepare colloidal sol with three aluminium secondary butylates and 2 ethyl hexanoic acid nickel, generate NiAl2O4 through 1200 ℃ of calcinings, and then under 950 ℃ with 5 hours [J.Appl.Phys. of H2 reduction, 82 1189-1195 (1997)], this method cost is higher, also dangerous property.Sweden has reported that with organic acid be peptizing agent, adopting alcohol is solvent, with aluminium isopropoxide etc. is raw material, preparation Ni-Al203 mixed sols, film the back in atmosphere of inert gases and 550-600 ℃ of annealing down, prepared Ni-Al2O3 solar spectral selective absorbing membrane [Composite materials and method of its manufactureWO2006/073357A1].
Summary of the invention
The purpose of this invention is to provide a kind of colloidal sol of the preparation solar energy photo-thermal conversion absorbing membrane based on inorganic acid, the preparation method is simple, and raw material is easy to get, and the film of preparation can be used for the thermal-arrest absorbed layer of solar energy optical-thermal conversion, and is with low cost, environmentally safe.
The colloidal sol of the preparation solar energy photo-thermal conversion absorbing membrane based on inorganic acid of the present invention: described colloidal sol is with organic or inorganic aluminium salt, nickel salt, chelating agent is raw material, alcoholysis and condensation reaction take place in ethanol or fatty alcohol, adopting inorganic acid is that peptizing agent prepares aluminium colloidal sol, is mixed with mixed sols with nickel sol again.
Remarkable advantage of the present invention is: the present invention adopts sol gel process in technical scheme, be peptizing agent with the inorganic acid, is solvent with alcohol, and preparation aluminium colloidal sol and obtains mixed sols after nickel sol mixes, and the preparation method is simple, and raw material is easy to get; Plated film on metallic substrates, after Overheating Treatment, the Ni-Al of acquisition
2O
3Film has the high solar absorptivity, is a kind of good solar energy photo-thermal conversion absorbing membrane, and is with low cost, environmentally safe.
The specific embodiment
The preparation method of colloidal sol is as follows:
(1) 3-5g organic or inorganic aluminium salt powder is added in 80-120mL absolute ethyl alcohol or the fatty alcohol, under agitation reflux and be warming up to 50-80 ℃, continue stirring and refluxing 0.5-1.5h, add 2-3mL chelating agent and 4-6mL inorganic acid, stirring and refluxing 2.5-3.5h obtains aluminium colloidal sol;
(2) get 80-120mL absolute ethyl alcohol or fatty alcohol, add 1-3mL chelating agent and 5-6g nickel salt successively under stirring, stir 0.5-1.5h, obtain nickel sol;
(3) measure above-mentioned two kinds of colloidal sols according to the mol ratio of Ni and Al, fully stir, obtain nickel-aluminium mixed sols; The mol ratio of described Ni and Al can be generally 1: 99-99: 1 for any ratio.
The colloidal sol of preparation is used for plated film in the smooth metal substrate, with colloidal sol plated film in the smooth metal substrate, obtains the Ni-Al of different Ni contents after Overheating Treatment
2O
3Film, nickel content changes to 99% from 1%.
Inorganic acid in the step (1) is a hydrochloric acid, a kind of in nitric acid or the perchloric acid; Organic or inorganic aluminium salt is a kind of in aluminum alkoxide, alchlor or the aluminum nitrate.
Fatty alcohol is straight chain or the fatty alcohol that contains side chain.
Chelating agent is to contain a kind of in carbonyl, amido, amide groups, hydroxyl, ester group or the carboxyl organic compound, a kind of as in acetylacetone,2,4-pentanedione, ethyl acetoacetate, citric acid, ammonium citrate or triethanolamine or the like
Nickel salt is nickel nitrate, nickel carboxylate, nickel halogenide or alkoxyl nickel.
Further describe technical scheme of the present invention below by specific embodiment, but the present invention not only is limited to this.
Embodiment 1
Most preferred embodiment
1,4.08g aluminium isopropoxide powder is added in the 100mL absolute ethyl alcohol, under agitation refluxing is warming up to 70 ℃, continues stirring and refluxing 1h, adds 2.5mL acetylacetone,2,4-pentanedione and 5.18mL HCl, and stirring and refluxing 3h obtains aluminium colloidal sol.
2, get the 100mL absolute ethyl alcohol, add 2mL acetylacetone,2,4-pentanedione and 5.8g six water nickel nitrates successively under stirring, stir 1h, obtain nickel sol.
3,2mL aluminium colloidal sol and 8mL nickel sol are mixed, stir, acquisition nickel content is 20% mixed sols.
Adopt spin-coating method, with mixed sols plated film on the metal aluminium flake, acquisition nickel content is 80% Ni-Al after Overheating Treatment
2O
3Nano compound film.Film surface is even, and is non-microcracked, can reach 0.82 to solar absorptance.
Embodiment 2
1,4.08g aluminium isopropoxide powder is added in the 100mL absolute ethyl alcohol, under agitation refluxing is warming up to 70 ℃, continues stirring and refluxing 1h, adds 2.5mL acetylacetone,2,4-pentanedione and 5.18ml HCl, and stirring and refluxing 3h obtains aluminium colloidal sol.
2, get the 100mL absolute ethyl alcohol, add acetylacetone,2,4-pentanedione 2mL and 5.8g six water nickel nitrates successively under stirring, stir 1h, obtain nickel sol.
3,6mL aluminium colloidal sol and 4mL nickel sol are mixed, stir, acquisition nickel content is 50% mixed sols.
With mixed sols plated film on the metal aluminium flake, acquisition nickel content is 50% Ni-Al after Overheating Treatment
2O
3Nano compound film.Film surface is even, and is non-microcracked.Can reach 0.77 to solar absorptance.
Embodiment 3
1,4.08g aluminium isopropoxide powder is added in the 100mL absolute ethyl alcohol, under agitation refluxing is warming up to 70 ℃, continues stirring and refluxing 1h, adds 2.5mL acetylacetone,2,4-pentanedione and 5.18mL HCl, and stirring and refluxing 3h obtains aluminium colloidal sol.
2, get the 100mL absolute ethyl alcohol, add 2mL acetylacetone,2,4-pentanedione and 5.8g six water nickel nitrates successively under stirring, stir 1h, obtain nickel sol.
3,5mL aluminium colloidal sol and 5mL nickel sol are mixed, stir, acquisition nickel content is 20% mixed sols.
With mixed sols plated film on smooth aluminium flake, acquisition nickel content is 50% Ni-Al after Overheating Treatment
2O
3Nano compound film.Film surface is even, and is non-microcracked, can reach 0.72 to solar absorptance.
Embodiment 4
1,3g aluminium secondary butylate powder is added in the anhydrous fatty alcohol of 80mL, under agitation refluxing is warming up to 50 ℃, continues stirring and refluxing 0.5h, adds 2mL ethyl acetoacetate or citric acid and 4mL nitric acid, and stirring and refluxing 2.5h obtains aluminium colloidal sol;
2, get the 80mL anhydrous fatty alcohol, add 1mL ethyl acetoacetate or citric acid and 5g nickel acetate successively under stirring, stir 0.5h, obtain nickel sol;
3, measure above-mentioned two kinds of colloidal sols according to the mol ratio of Ni and Al, fully stir, obtain nickel-aluminium mixed sols; The mol ratio of described Ni and Al is 1: 10-50.
The colloidal sol of preparation is used for plated film in the smooth metal substrate, with colloidal sol plated film in the smooth metal substrate, obtains Ni-Al after Overheating Treatment
2O
3Film, film surface is even, and is non-microcracked, when Ni and Al mol ratio are 8: 2, can reach 0.80 to solar absorptance.
Embodiment 5
1,5g alchlor powder is added in the anhydrous fatty alcohol that contains side chain of 120mL, under agitation reflux and be warming up to 80 ℃, continue stirring and refluxing 1.5h, add 3mL ammonium citrate and 6mL hydrochloric acid, stirring and refluxing 3.5h obtains aluminium colloidal sol;
2, get the anhydrous fatty alcohol that contains side chain of 120mL, add 3mL ammonium citrate and 6g nickel acetate successively under stirring, stir 1.5h, obtain nickel sol;
3, measure above-mentioned two kinds of colloidal sols according to the mol ratio of Ni and Al, fully stir, obtain nickel-aluminium mixed sols; The mol ratio of described Ni and Al is 1: 50-50: 1.
The colloidal sol of preparation is used for plated film in the smooth metal substrate, with colloidal sol plated film in the smooth metal substrate, obtains Ni-Al after Overheating Treatment
2O
3Film, film surface is even, and is non-microcracked, when Ni and Al mol ratio are 8: 2, can reach 0.80 to solar absorptance.
Embodiment 6
1, a kind of powder in the 4g aluminum nitrate is added in the 100mL absolute ethyl alcohol, under agitation refluxing is warming up to 75 ℃, continues stirring and refluxing 1h, adds 2.5mL ammonium citrate or triethanolamine and 5mL nitric acid, and stirring and refluxing 2.5-3.5h obtains aluminium colloidal sol;
2, get the 100mL absolute ethyl alcohol, add 2mL ammonium citrate or triethanolamine and 5.5g nickel chloride successively under stirring, stir 1h, obtain nickel sol;
3, measure above-mentioned two kinds of colloidal sols according to the mol ratio of Ni and Al, fully stir, obtain nickel-aluminium mixed sols; The mol ratio of described Ni and Al is 20: 80-80: 20.
The colloidal sol of preparation is used for plated film in the smooth metal substrate, with colloidal sol plated film in the smooth metal substrate, obtains Ni-Al after Overheating Treatment
2O
3Film, film surface is even, and is non-microcracked, when Ni and Al mol ratio are 8: 2, can reach 0.8 to solar absorptance.
Claims (9)
1. colloidal sol based on the preparation solar energy photo-thermal conversion absorbing membrane of inorganic acid, it is characterized in that: described colloidal sol is with organic or inorganic aluminium salt, nickel salt, chelating agent is raw material, alcoholysis and condensation reaction take place in ethanol or fatty alcohol, adopting inorganic acid is that peptizing agent prepares aluminium colloidal sol, is mixed with mixed sols with nickel sol again.
2. the colloidal sol of the preparation solar energy photo-thermal conversion absorbing membrane based on inorganic acid according to claim 1, it is characterized in that: the preparation method of described colloidal sol is as follows:
(1) 3-5g organic or inorganic aluminium salt powder is added in 80-120mL absolute ethyl alcohol or the fatty alcohol, under agitation reflux and be warming up to 50-80 ℃, continue stirring and refluxing 0.5-1.5h, add 2-3mL chelating agent and 4-6mL inorganic acid, stirring and refluxing 2.5-3.5h obtains aluminium colloidal sol;
(2) get 80-120mL absolute ethyl alcohol or fatty alcohol, add 1-3mL chelating agent and 5-6g nickel salt successively under stirring, stir 0.5-1.5h, obtain nickel sol;
(3) measure above-mentioned two kinds of colloidal sols according to the mol ratio of Ni and Al, fully stir, obtain nickel-aluminium mixed sols; The mol ratio of described Ni and Al is 1: 99-99: 1.
3. the colloidal sol of the preparation solar energy photo-thermal conversion absorbing membrane based on inorganic acid according to claim 2, it is characterized in that: described nickel-aluminium mixed sols is used for plated film in the smooth metal substrate; After Overheating Treatment, obtain the Ni-Al of different Ni contents
2O
3Film, nickel content changes to 99% from 1%.
4. the colloidal sol of the preparation solar energy photo-thermal conversion absorbing membrane based on inorganic acid according to claim 2 is characterized in that: the inorganic acid in the described step (1) is a kind of in hydrochloric acid, nitric acid or the perchloric acid.
5. the colloidal sol of the preparation solar energy photo-thermal conversion absorbing membrane based on inorganic acid according to claim 2 is characterized in that: the organic or inorganic aluminium salt in the described step (1) is a kind of in aluminum alkoxide, alchlor or the aluminum nitrate.
6. the colloidal sol of the preparation solar energy photo-thermal conversion absorbing membrane based on inorganic acid according to claim 2, it is characterized in that: described fatty alcohol is straight chain or the fatty alcohol that contains side chain.
7. the colloidal sol of the preparation solar energy photo-thermal conversion absorbing membrane based on inorganic acid according to claim 2 is characterized in that: described chelating agent is to contain a kind of in carbonyl, amido, amide groups, hydroxyl, ester group or the carboxyl organic compound.
8. the solar energy photo-thermal conversion absorbing membrane colloidal sol based on inorganic acid preparation according to claim 7 is characterized in that: described chelating agent is a kind of in acetylacetone,2,4-pentanedione, ethyl acetoacetate, citric acid, ammonium citrate or the triethanolamine.
9. the colloidal sol of the preparation solar energy photo-thermal conversion absorbing membrane based on inorganic acid according to claim 2 is characterized in that: described nickel salt is a kind of in nickel nitrate, nickel carboxylate, nickel halogenide or the alkoxyl nickel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101113311A CN101518824B (en) | 2009-03-24 | 2009-03-24 | Inorganic acid based collosol for preparing solar energy photo-thermal conversion absorbing membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101113311A CN101518824B (en) | 2009-03-24 | 2009-03-24 | Inorganic acid based collosol for preparing solar energy photo-thermal conversion absorbing membrane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101518824A CN101518824A (en) | 2009-09-02 |
| CN101518824B true CN101518824B (en) | 2010-12-01 |
Family
ID=41079735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101113311A Expired - Fee Related CN101518824B (en) | 2009-03-24 | 2009-03-24 | Inorganic acid based collosol for preparing solar energy photo-thermal conversion absorbing membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101518824B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102087054B (en) * | 2010-11-16 | 2012-10-31 | 福州大学 | Photothermal conversion absorbing membrane system and sol-gel preparation method thereof |
| CN102357658B (en) * | 2011-04-29 | 2014-03-26 | 福州大学 | Hydrosol for preparing solar photo-thermal conversion absorption film |
| CN109373618A (en) * | 2018-08-30 | 2019-02-22 | 江苏京展能源科技有限公司 | A kind of preparation method of selective solar composite coating for absorbing |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1812007A (en) * | 2006-01-18 | 2006-08-02 | 南京大学 | High-stability Fc/Al203 composite nano particles with nuclear/shell structure and producing method |
| CN101273238A (en) * | 2005-08-02 | 2008-09-24 | 桑斯翠普有限公司 | Nickel-alumina coated solar absorbers |
-
2009
- 2009-03-24 CN CN2009101113311A patent/CN101518824B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101273238A (en) * | 2005-08-02 | 2008-09-24 | 桑斯翠普有限公司 | Nickel-alumina coated solar absorbers |
| CN1812007A (en) * | 2006-01-18 | 2006-08-02 | 南京大学 | High-stability Fc/Al203 composite nano particles with nuclear/shell structure and producing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101518824A (en) | 2009-09-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101798061B (en) | Aluminum-rare earth micro nano composite hydrogen manufacturing material | |
| CN102205253B (en) | Supported photocatalyst with high activity under visible light and preparation method thereof | |
| CN110342477B (en) | Oxygen-doped porous carbon nitride nanosheet and preparation method thereof | |
| CN102030313B (en) | Organic matter and ammonia borane compounded hydrogen storage material and preparation method thereof | |
| CN101518824B (en) | Inorganic acid based collosol for preparing solar energy photo-thermal conversion absorbing membrane | |
| CN102093767A (en) | Medium and high temperature solar selective absorption coating and coating layer and preparation method thereof | |
| CN102357658B (en) | Hydrosol for preparing solar photo-thermal conversion absorption film | |
| CN103949234A (en) | Preparation method of boron-doped graphene/TiO2 nanorod photocatalytic material | |
| CN104707642B (en) | A kind of g C3N4/ CuO composites and its preparation method and application | |
| CN102912332B (en) | Method for preparing RexCe1-xOy/M2Zr2O7 double-layer buffer layer by chemical solution deposition | |
| CN102087054B (en) | Photothermal conversion absorbing membrane system and sol-gel preparation method thereof | |
| CN113813944B (en) | Monoatomic rhodium catalyst and preparation method and application thereof | |
| CN105344370A (en) | Porous carbon nitride/copper sulfide photocatalytic composite material with p-n structure and preparation method thereof | |
| CN108101119A (en) | The preparation method of oxidation nanometer sheet material | |
| CN102925890B (en) | Preparation method for corrosion-resistant coating of nickel-aluminum based intermetallic compound | |
| CN102864323B (en) | Preparation method of Ni-Al alloy porous material with controllable structure | |
| CN101746727A (en) | Method for preparing LiBH4 xNH3 compounds | |
| CN104722301A (en) | Preparation method of catalyst for preparing dihydroxy acetone by selective oxidation of glycerinum and application method thereof | |
| CN104084203A (en) | Preparation method of Cu-Ti and TiO2 composite film material | |
| CN104403558A (en) | Preparation method for solar-energy selectively-adsorbing paint with self cleaning function | |
| CN101822976B (en) | Method for synthesis of nano La2O3/La2O2CO3 composite material by combustion method | |
| CN103752309B (en) | Containing B crystalline state nanometer Ru base catalyst, preparation method and applications | |
| CN102287940B (en) | Solar photo-thermal transforming absorbing film system and preparation method thereof | |
| CN102400214A (en) | Quartz crucible with composite coating layers for preparing polycrystalline silicon ingot | |
| CN102059123A (en) | Sintering FeCrAl metal fiber porous carrier catalyst and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20140324 |