CN102557105A - Monodisperse cerium oxide nanoparticle and preparation method thereof - Google Patents
Monodisperse cerium oxide nanoparticle and preparation method thereof Download PDFInfo
- Publication number
- CN102557105A CN102557105A CN2011104599564A CN201110459956A CN102557105A CN 102557105 A CN102557105 A CN 102557105A CN 2011104599564 A CN2011104599564 A CN 2011104599564A CN 201110459956 A CN201110459956 A CN 201110459956A CN 102557105 A CN102557105 A CN 102557105A
- Authority
- CN
- China
- Prior art keywords
- cerium oxide
- cerium
- oxide nanoparticles
- disperses
- salt
- 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.)
- Granted
Links
- 229910000420 cerium oxide Inorganic materials 0.000 title claims abstract description 37
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 239000002105 nanoparticle Substances 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- 150000000703 Cerium Chemical class 0.000 claims abstract description 12
- 239000002245 particle Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- XMPZTFVPEKAKFH-UHFFFAOYSA-P ceric ammonium nitrate Chemical group [NH4+].[NH4+].[Ce+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O XMPZTFVPEKAKFH-UHFFFAOYSA-P 0.000 claims description 14
- 238000005406 washing Methods 0.000 claims description 14
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 13
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- 150000002823 nitrates Chemical class 0.000 claims description 7
- 229910052684 Cerium Inorganic materials 0.000 claims description 6
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 claims description 6
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 6
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 6
- IIPYXGDZVMZOAP-UHFFFAOYSA-N lithium nitrate Chemical compound [Li+].[O-][N+]([O-])=O IIPYXGDZVMZOAP-UHFFFAOYSA-N 0.000 claims description 6
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 5
- 235000010344 sodium nitrate Nutrition 0.000 claims description 5
- 239000004317 sodium nitrate Substances 0.000 claims description 5
- 229940001516 sodium nitrate Drugs 0.000 claims description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 4
- -1 polyoxyethylene Polymers 0.000 claims description 4
- 235000010333 potassium nitrate Nutrition 0.000 claims description 3
- 239000004323 potassium nitrate Substances 0.000 claims description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 239000002994 raw material Substances 0.000 abstract description 9
- 238000009826 distribution Methods 0.000 abstract description 7
- 239000011858 nanopowder Substances 0.000 abstract description 5
- 230000036632 reaction speed Effects 0.000 abstract description 2
- 239000002904 solvent Substances 0.000 abstract description 2
- 229910002651 NO3 Inorganic materials 0.000 abstract 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 abstract 2
- 239000002270 dispersing agent Substances 0.000 abstract 1
- 230000001089 mineralizing effect Effects 0.000 abstract 1
- 239000012266 salt solution Substances 0.000 abstract 1
- 238000002156 mixing Methods 0.000 description 6
- 238000013019 agitation Methods 0.000 description 5
- 238000009987 spinning Methods 0.000 description 5
- 238000005303 weighing Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 2
- 230000002468 redox effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910000667 (NH4)2Ce(NO3)6 Inorganic materials 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- AUQXCHZNUWQQDB-UHFFFAOYSA-N [Ce].C(C)C(=O)C(=O)C Chemical compound [Ce].C(C)C(=O)C(=O)C AUQXCHZNUWQQDB-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 1
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011807 nanoball Substances 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention provides a monodisperse cerium oxide nanoparticle and a preparation method thereof. Monodisperse cerium oxide nano-powder with high crystallinity can be prepared by controlling the reaction speed in a way of taking a soluble cerium salt, nitrate and a dispersant as reaction raw materials, taking water as a solvent and taking nitrate as a mineralizing agent and by controlling the concentration of a cerium salt solution, the proportions of reaction raw materials, hydrothermal time and hydrothermal temperature under a hydrothermal condition, and effective regulation and control over the particle diameter of cerium oxide is realized. The cerium oxide nano-powder prepared with the method has the advantages of uniform size distribution, high dispersity, simple preparation process, no need of complex raw material equipment, easiness for operating, low cost and high repeatability.
Description
Technical field
The invention belongs to the rare earth oxide field of materials, relate to a kind of single cerium oxide nanoparticles and preparation method thereof of disperseing.
Background technology
Cerium is a kind of important lanthanon, has good redox property.Cerium oxide is the highest active a kind of catalyzer in the rare earth oxide series, has comparatively unique crystalline structure, the higher oxygen storage capacity and the ability of release oxygen, stronger oxidation-reduction performance (Ce
3+/ Ce
4+), thereby received people's very big concern, be widely used in Industrial Catalysis, field such as precise polished.Nano-cerium oxide is adsorbed on has the redox property that can improve material on the active solid support material greatly.In high precision polishing, the homogeneity of the granularity of powder, pattern and distribution of sizes thereof has material impact, and particle is thin more, and it is even more to distribute, and then polishing effect is good more.
Chinese invention patent CN101792171A joins solubility cerium salt in water and the organic solvent mixing solutions, has prepared cerium oxide nanoballs through hydro-thermal reaction and combination calcining.Chinese invention patent CN101825551A as raw material, through twice hydro-thermal reaction, prepares the cerium oxide microballoon of 90～450nm with cerous salt.Chinese invention patent CN1699282A is a raw material with cerium salt and urea, adopts sluggish precipitation to synthesize the cerium oxide of submicron order.Chinese invention patent CN101306830A is the cerium source with the methyl ethyl diketone cerium, adopt the recirculation water solution, and the water-soluble spherical cerium oxide that between 225～240 ℃, has prepared median size and be 5～10nm is nanocrystalline.Chinese invention patent CN101541912A adopts the precursor solution of cerium to mix with precipitant solution and reacts, and simultaneously solution is carried out oxide treatment, and the ceria oxide powder particle diameter of preparation can be regulated between 50nm～3 μ m.
Foregoing invention prepares the process more complicated; Or need twice hydro-thermal reaction, or need follow-up calcination processing, maybe need use precipitation agent and organic solvent; And prepared product size distribution broad also has difficulties to effective control of morphology microstructure and size distribution.The present invention is intended to adopt simple raw material through a kind of easy technology, prepares the cerium oxide nano-powder of narrow size distribution.
Summary of the invention
The invention provides a kind of very easy hydro-thermal technology, adopt simple raw material can prepare the good dispersed nano cerium oxide nano-powder of crystallinity easily, distribution of sizes is narrower.Concrete technological process is: cerium salt, nitrate salt and dispersion agent are mixed according to a certain percentage and be dissolved in the water, and stirring obtains settled solution; The solution for preparing is put into reaction kettle, in baking oven, carry out hydro-thermal reaction; It is dry that the product of reaction after finishing put into baking oven through washing, washing with alcohol, after centrifugal, obtains cerium oxide nano-powder.
In the method for the invention, solubility cerium salt is ceric ammonium nitrate ((NH
4)
2Ce (NO
3)
6), the concentration of cerium solution is less than 1mol/L.Nitrate salt is one or several in lithium nitrate, SODIUMNITRATE, the saltpetre, and the mol ratio of cerium salt, nitrate salt is 1: 1.5～5.Dispersion agent is a kind of in polyoxyethylene glycol (PEG), Vinylpyrrolidone polymer (PVP), the polyoxyethylene (PEO), and the mass ratio of cerium salt and dispersion agent is 27.4～411: 1.
In the method for the invention, hydrothermal temperature is 120～220 ℃, and the hydro-thermal reaction time is 1～100h, 60～120 ℃ of oven dry in baking oven.
The present invention only needs under hydrothermal condition; Introduce nitrate salt as mineralizer, play the effect of controls reaction speed, make stable nucleation, deposition, the crystallization process of reaction experience; Need not follow-up high-temperature heat treatment, can prepare the good dispersed nano cerium oxide powder of crystallinity.Concentration, the ratio of reaction raw materials, hydro-thermal time, hydrothermal temperature through the control cerium solution can be realized the cerium oxide particle diameter controlled between 160～300nm.
The method of the invention has following beneficial effect:
1) production technique is simple, flow process is short, easy to operate, and good reproducibility;
2) raw material is simple, is solvent with water, need not with an organic solvent, has both practiced thrift cost, has reduced environmental pollution again;
3) a step hydro-thermal reaction can obtain the good nano cerium oxide powder of crystallization degree, need not additional high-temperature heat treatment, has reduced the technology cost;
4) good product dispersibility, narrow size distribution can be regulated and control particle diameter through temperature of reaction, reactant concn;
5) the prepared single cerium oxide nanoparticles of disperseing of the present invention can be used for aspects such as ultravioletlight screening, automotive exhaust catalysis, mechanical polishing.
Description of drawings
Fig. 1 is that embodiment 1 prepared list disperses the stereoscan photograph of cerium oxide nanoparticles, has the spherical morphology of corner angle, and size is homogeneous very, and particle diameter is 240 ± 2nm.
Fig. 2 is the XRD spectra of the prepared cerium oxide nanoparticles of embodiment 1, and is consistent with the result of JCPDS (34-0394) card, is the CeO of pure phase
2, and have good crystallinity.
Embodiment
Below in conjunction with specific embodiment the present invention is described in more detail and explains, but those skilled in the art will recognize that these embodiment only are used to illustrate the present invention, it does not constitute any restriction to scope of the present invention.
Embodiment 1
Take by weighing 2.74g ceric ammonium nitrate, 1.0g SODIUMNITRATE and 0.1g PEG 2000, be dissolved in the 15ml water,, obtain settled solution through the magnetic agitation thorough mixing.This solution is transferred in the reaction kettle, put into baking oven, 200 ℃ of hydro-thermal reactions 10 hours.After washing, washing with alcohol and spinning, throw out is placed 80 ℃ of oven dry of baking oven, obtaining particle diameter is single cerium oxide that disperses of 240 ± 2nm.
Embodiment 2
Take by weighing 4.11g ceric ammonium nitrate, 1.5g SODIUMNITRATE and 0.01g PEO, be dissolved in the 15ml water,, obtain clear solution through the magnetic agitation thorough mixing.This solution is transferred in the reaction kettle, put into baking oven, 220 ℃ of hydro-thermal reactions 1 hour.After washing, washing with alcohol and spinning, throw out is placed 80 ℃ of oven dry of baking oven, obtaining particle diameter is single cerium oxide that disperses of 270 ± 3nm.
Embodiment 3
Take by weighing 2.74g ceric ammonium nitrate, 2.0g lithium nitrate and 0.1g PVP, be dissolved in the 15ml water,, obtain settled solution through the magnetic agitation thorough mixing.This solution is transferred in the reaction kettle, put into baking oven, 120 ℃ of hydro-thermal reactions 100 hours.After washing, washing with alcohol and spinning, throw out is placed 80 ℃ of oven dry of baking oven, obtaining particle diameter is single cerium oxide that disperses of 180 ± 3nm.
Embodiment 4
Take by weighing 5.48g ceric ammonium nitrate, 2.0g SODIUMNITRATE and 0.8g PVP, be dissolved in the 15ml water,, obtain settled solution through the magnetic agitation thorough mixing.This solution is transferred in the reaction kettle, put into baking oven, 150 ℃ of hydro-thermal reactions 60 hours.After washing, washing with alcohol and spinning, throw out is placed 80 ℃ of oven dry of baking oven, obtaining particle diameter is single cerium oxide that disperses of 195 ± 3nm.
Embodiment 5
Take by weighing 2.74g ceric ammonium nitrate, 1.0g saltpetre and 0.18g PVP, be dissolved in the 15ml water,, obtain settled solution through the magnetic agitation thorough mixing.This solution is transferred in the reaction kettle, put into baking oven, 180 ℃ of hydro-thermal reactions 10 hours.After washing, washing with alcohol and spinning, throw out is placed 80 ℃ of oven dry of baking oven, obtaining particle diameter is single cerium oxide that disperses of 220 ± 3nm.
Claims (9)
1. single preparation method who disperses cerium oxide nanoparticles may further comprise the steps: cerium salt, nitrate salt and dispersion agent are mixed according to a certain percentage and be dissolved in the water, and stirring obtains settled solution; The solution for preparing is put into reaction kettle, in baking oven, carry out hydro-thermal reaction; It is dry that the product of reaction after finishing put into baking oven through washing, washing with alcohol, after centrifugal, obtains cerium oxide powder.
2. single preparation method who disperses cerium oxide nanoparticles according to claim 1 is characterized in that said solubility cerium salt is ceric ammonium nitrate.
3. single preparation method who disperses cerium oxide nanoparticles according to claim 1 is characterized in that the concentration of cerium solution is less than 1mol/L.
4. single preparation method who disperses cerium oxide nanoparticles according to claim 1 is characterized in that said nitrate salt is one or several in lithium nitrate, SODIUMNITRATE, the saltpetre.
5. single preparation method who disperses cerium oxide nanoparticles according to claim 1 is characterized in that, said dispersion agent is a kind of in polyoxyethylene glycol, Vinylpyrrolidone polymer, the polyoxyethylene.
6. single preparation method who disperses cerium oxide nanoparticles according to claim 1 is characterized in that hydrothermal temperature is 120～220 ℃, and the hydro-thermal reaction time is 1～100h.
7. single preparation method who disperses cerium oxide nanoparticles according to claim 1 is characterized in that the mol ratio of cerium salt, nitrate salt is 1: 1.5～5.
8. single preparation method who disperses cerium oxide nanoparticles according to claim 1 is characterized in that the mass ratio of cerium salt and dispersion agent is 27.4～411: 1.
9. single cerium oxide nanoparticles of disperseing is prepared by any described method among the claim 1-8, and size homogeneous, particle diameter are controlled between 160～300nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110459956.4A CN102557105B (en) | 2011-12-31 | 2011-12-31 | Monodisperse cerium oxide nanoparticle and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110459956.4A CN102557105B (en) | 2011-12-31 | 2011-12-31 | Monodisperse cerium oxide nanoparticle and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102557105A true CN102557105A (en) | 2012-07-11 |
| CN102557105B CN102557105B (en) | 2014-06-04 |
Family
ID=46403928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110459956.4A Expired - Fee Related CN102557105B (en) | 2011-12-31 | 2011-12-31 | Monodisperse cerium oxide nanoparticle and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102557105B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877131A (en) * | 2012-10-19 | 2013-01-16 | 浙江大学 | Preparation method of octahedral structural perovskite lead titanate single crystal nano particles |
| CN105170130A (en) * | 2015-09-02 | 2015-12-23 | 中国科学院新疆理化技术研究所 | Preparation method and application of high-dispersion CeO2 modified TiO2 meso-porous photocatalyst |
| CN105417591A (en) * | 2015-11-24 | 2016-03-23 | 青岛能迅新能源科技有限公司 | Method for preparing nickel cobaltite nano material through solvothermal method |
| CN106145177A (en) * | 2016-07-10 | 2016-11-23 | 九江学院 | A kind of preparation method of small particle ceria nano-crystalline |
| CN108238627A (en) * | 2018-04-20 | 2018-07-03 | 内江师范学院 | The preparation method of the micro-nano ceria of high-specific surface area |
| CN108249471A (en) * | 2018-04-20 | 2018-07-06 | 内江师范学院 | A kind of method for preparing the micro-nano ceria of high-specific surface area |
| CN108929489A (en) * | 2018-08-31 | 2018-12-04 | 芜湖盈奇塑业有限公司 | A kind of ageing resistance polypropylene water horse enclosing and preparation method thereof |
| CN109135062A (en) * | 2018-08-31 | 2019-01-04 | 芜湖盈奇塑业有限公司 | A kind of preparation method of high waterproof performance water horse enclosing |
| CN111434380A (en) * | 2019-01-11 | 2020-07-21 | 北京化工大学 | Preparation method and application of oil-soluble monodisperse metal oxide nano catalyst |
| CN111579515A (en) * | 2020-05-26 | 2020-08-25 | 山东理工大学 | Method for oxidizing TMB by using nano-cerium dioxide as simulated oxidase |
| WO2021072641A1 (en) * | 2019-10-15 | 2021-04-22 | 诸暨易联众创企业管理服务有限公司 | Method for preparing ceric dioxide-based nanomaterial |
| CN115353639A (en) * | 2022-07-12 | 2022-11-18 | 昆明理工大学 | Method for preparing potassium humate by using corn straws and application |
| CN115974127A (en) * | 2022-11-25 | 2023-04-18 | 深圳市聚芯半导体材料有限公司 | Quasi-spherical nano cerium dioxide, suspension thereof, preparation method and application |
| JP2023545573A (en) * | 2020-11-24 | 2023-10-30 | ライナス レア アース リミテッド | Materials, methods and techniques for producing doped cerium oxide |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1546382A (en) * | 2003-12-10 | 2004-11-17 | 山东师范大学 | Method for synthesizing cadmium hydroxide single-crystal nanowire |
-
2011
- 2011-12-31 CN CN201110459956.4A patent/CN102557105B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1546382A (en) * | 2003-12-10 | 2004-11-17 | 山东师范大学 | Method for synthesizing cadmium hydroxide single-crystal nanowire |
Non-Patent Citations (5)
| Title |
|---|
| FU ZHOU ET AL.: "CeO2 Spherical Crystallites: Synthesis, Formation Mechanism, Size Control, and Electrochemical Property Study", 《J. PHYS. CHEM. C》 * |
| MASANORI HIRANO ET AL.: "Preparation and spherical agglomeration of crystalline cerium（Ⅳ）oxide nanoparticles by thermal hydrolysis", 《J. AM. CERAM. SOC》 * |
| YULAN LIU ET AL: "Wet Chemical Preparation of Well-dispersed Colloidal Cerium Oxide Nanocrystals", 《CHEMISTRY LETTERS》 * |
| 谢丽英等: "纳米氧化铈粉体的制备技术研究进展", 《稀土》 * |
| 陈建君等: "纳米二氧化铈的低温水热一步法合成", 《材料导报》 * |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877131A (en) * | 2012-10-19 | 2013-01-16 | 浙江大学 | Preparation method of octahedral structural perovskite lead titanate single crystal nano particles |
| CN102877131B (en) * | 2012-10-19 | 2015-04-29 | 浙江大学 | Preparation method of octahedral structural perovskite lead titanate single crystal nano particles |
| CN105170130A (en) * | 2015-09-02 | 2015-12-23 | 中国科学院新疆理化技术研究所 | Preparation method and application of high-dispersion CeO2 modified TiO2 meso-porous photocatalyst |
| CN105170130B (en) * | 2015-09-02 | 2017-09-22 | 中国科学院新疆理化技术研究所 | High dispersive CeO2Modify TiO2Mesoporous photocatalytic agent preparation method and application |
| CN105417591A (en) * | 2015-11-24 | 2016-03-23 | 青岛能迅新能源科技有限公司 | Method for preparing nickel cobaltite nano material through solvothermal method |
| CN106145177A (en) * | 2016-07-10 | 2016-11-23 | 九江学院 | A kind of preparation method of small particle ceria nano-crystalline |
| CN108238627A (en) * | 2018-04-20 | 2018-07-03 | 内江师范学院 | The preparation method of the micro-nano ceria of high-specific surface area |
| CN108249471A (en) * | 2018-04-20 | 2018-07-06 | 内江师范学院 | A kind of method for preparing the micro-nano ceria of high-specific surface area |
| CN108929489A (en) * | 2018-08-31 | 2018-12-04 | 芜湖盈奇塑业有限公司 | A kind of ageing resistance polypropylene water horse enclosing and preparation method thereof |
| CN109135062A (en) * | 2018-08-31 | 2019-01-04 | 芜湖盈奇塑业有限公司 | A kind of preparation method of high waterproof performance water horse enclosing |
| CN111434380A (en) * | 2019-01-11 | 2020-07-21 | 北京化工大学 | Preparation method and application of oil-soluble monodisperse metal oxide nano catalyst |
| CN111434380B (en) * | 2019-01-11 | 2021-12-21 | 北京化工大学 | Preparation method and application of oil-soluble monodisperse metal oxide nano catalyst |
| WO2021072641A1 (en) * | 2019-10-15 | 2021-04-22 | 诸暨易联众创企业管理服务有限公司 | Method for preparing ceric dioxide-based nanomaterial |
| CN111579515A (en) * | 2020-05-26 | 2020-08-25 | 山东理工大学 | Method for oxidizing TMB by using nano-cerium dioxide as simulated oxidase |
| JP2023545573A (en) * | 2020-11-24 | 2023-10-30 | ライナス レア アース リミテッド | Materials, methods and techniques for producing doped cerium oxide |
| JP7505124B2 (en) | 2020-11-24 | 2024-06-24 | ライナス レア アース リミテッド | Materials, methods and techniques for producing doped cerium oxide |
| US12049407B2 (en) | 2020-11-24 | 2024-07-30 | Lynas Rare Earths Limited | Materials, methods and techniques for generating doped cerium oxide |
| CN115353639A (en) * | 2022-07-12 | 2022-11-18 | 昆明理工大学 | Method for preparing potassium humate by using corn straws and application |
| CN115353639B (en) * | 2022-07-12 | 2023-08-08 | 昆明理工大学 | Method for preparing potassium humate by using corn straw and application |
| CN115974127A (en) * | 2022-11-25 | 2023-04-18 | 深圳市聚芯半导体材料有限公司 | Quasi-spherical nano cerium dioxide, suspension thereof, preparation method and application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102557105B (en) | 2014-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102557105B (en) | Monodisperse cerium oxide nanoparticle and preparation method thereof | |
| US11305350B2 (en) | Method for preparing silver powder by using micro-nano bubbles as crystal seeds | |
| Qiu et al. | Tuning the size and shape of colloidal cerium oxide nanocrystals through lanthanide doping | |
| CN106848231B (en) | Compound prepared by composite precursor preparation method and battery comprising compound | |
| Wang et al. | Characterization of samarium-doped ceria powders prepared by hydrothermal synthesis for use in solid state oxide fuel cells | |
| CN103223488A (en) | Preparation method for silver-coated silicon dioxide composite microsphere particles | |
| CN101890354A (en) | Method for preparing bismuth ferrite photocatalyst | |
| WO2006000049A1 (en) | Method for producing fine-grained particles | |
| CN106587131A (en) | Preparation method of spherical nanometer CeO2 polishing powder | |
| CN1837053A (en) | Process for preparing mesoporous ceria | |
| CN101284952B (en) | Abrasive grain CeO2 for chemical and mechanical buffing and method for preparing same | |
| CN108546118A (en) | A kind of yttria-stabilized zirconia powder and preparation method thereof and ceramics | |
| CN101844921B (en) | Preparation method of zirconium dioxide powder | |
| CN105883742A (en) | Preparation method of nano beta-tricalcium phosphate | |
| CN113247941A (en) | Method for synthesizing uniform spherical nano cerium oxide material at low temperature | |
| Zhang et al. | Preparation of discrete nanosize ceria powder | |
| CN108217702A (en) | A kind of method that the synthesis and its pyrolysis of ultramicropore aluminum carbonate basic ammonium prepare aluminium oxide | |
| Yu et al. | Versatile synthesis of metal-compound based mesoporous Janus nanoparticles | |
| CN103332733B (en) | The method of the rare earth titanium silicate nanometer crystalline substance that self-propagating combustion preparation size is controlled | |
| CN101269832A (en) | Process for producing nano-cerium dioxide with high-specific surface area and high hole capacity | |
| CN1636932A (en) | Microwave hydrothermal synthesis process of nanometer yttrium oxide stabilized zirconium oxide material | |
| CN106268728A (en) | A kind of preparation method of visible-light response nano titanium dioxide optical catalyst | |
| CN102796493A (en) | Spherical monodisperse high-cerium polishing powder and preparation method thereof | |
| CN107522221A (en) | A kind of method that active porous nano ceric oxide is prepared based on inorganic template | |
| CN102557102A (en) | Preparation method for mono-disperse spherical nano-cerium oxide |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |