CN1242922C - Synthesis method of cerium oxide nano material - Google Patents
Synthesis method of cerium oxide nano material Download PDFInfo
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- CN1242922C CN1242922C CN 200410023419 CN200410023419A CN1242922C CN 1242922 C CN1242922 C CN 1242922C CN 200410023419 CN200410023419 CN 200410023419 CN 200410023419 A CN200410023419 A CN 200410023419A CN 1242922 C CN1242922 C CN 1242922C
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- cerium oxide
- oxide nano
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Abstract
The present invention provides a method for synthesizing nanometer cerium oxide materials. The method comprises the following steps of adding a hydrogen peroxide solution to a soluble salt solution containing cerium, agitating the mixtures to produce precipitates conveyed into a hermetic reactor, cooling the precipitates to normal temperature under the heating condition after complete reactions, and washing and drying obtained products to obtain cubic nanometer cerium oxide, or the method comprises the following steps of adding the soluble salt solution containing cerium to the hydrogen peroxide solution, agitating the mixtures to produce the precipitates conveyed into the hermetic reactor, cooling the precipitates to normal temperature under the heating condition after complete reactions, and washing and drying the obtained products to obtain nanometer cerium oxide wires.
Description
Technical field
The invention belongs to technical field of inorganic chemical industry, relate to preparation of nanomaterials, relate in particular to the synthetic method of cerium oxide nano materials.
Background technology
Since carbon nanotube comes out, one-dimensional nano structure material receives much attention because of its peculiar electricity, optics, magnetic and mechanical property and the potential application in nano-device structure thereof, thereby to explore preparation low-dimension nano material structurally ordered, excellent property be the focus of research always.Cerium oxide has excellent chemical property, can be used for luminescent material, gas sensor, superconductor, catalyzer, electronic ceramics, glass polishing agent, uv-absorbing material etc.Behind its nanometer, its performance is more excellent, and the state of cerium oxide is very important for the applied research of its material.People are doing a lot of trials aspect the preparation of one dimension Nano structure, particularly in recent years, the relevant expert of affiliated technical field has carried out fruitful research both at home and abroad, and wherein template or tensio-active agent have obtained using widely.Yet, in reaction system, to introduce template or tensio-active agent and be unable to do without their preparation and selection, this not only makes entire reaction course complicated, increases preparation cost, reduces quality product, and is unfavorable for large-scale industrial production.In addition, still find no the report that closes cerium oxide nano cubes and cerium oxide nano line so far.
Summary of the invention
The purpose of this invention is to provide without tensio-active agent or template, simple for process, cost is low, and the purity height helps the synthetic method of the cerium oxide nano materials that large-scale industrial produces.
Purpose of the present invention can realize by following technical measures:
This method is carried out as follows:
A, in the soluble salt solution of cerium, add superoxol and stir precipitation to be generated; After
B, send into closed reactor, 200～250 ℃ of reactions 3～24 hours down, after the product through reacting completely is cooled to normal temperature; Again
C, with resulting product through washing and dry, the cerium oxide nano cubes.
Purpose of the present invention also can realize by following technical measures:
This method is carried out as follows:
A, in superoxol, add the soluble salt solution of cerium and stir precipitation to be generated; After
B, send into closed reactor, 200～250 ℃ of reactions 3～24 hours down, after the product through reacting completely is cooled to normal temperature; Again
C, with resulting product through washing and dry, the cerium oxide nano line.
Purpose of the present invention also can realize by following technical measures:
The preferred cerous nitrate of soluble salt solution of described cerium or the aqueous solution of Cerium II Chloride.
The present invention is a raw material with the soluble salt and the hydrogen peroxide of cerium; adopt the identical different technology of raw material to synthesize cerium oxide nano cubes and nano wire; in reaction process, avoided the introducing of tensio-active agent and organic reagent; therefore has very high purity; production technique is simple, and cost is low, helps large-scale industrial production; the invention provides a kind of new nano material, filled up the blank that does not have cerium oxide nano cubes and cerium oxide nano line so far.The present invention has gone back systematic research preparation technology and condition adopt X ray powder diffracting technology, transmission, scanning techniques such as TEM, SEM that products obtained therefrom is characterized to the purity of product and the influence of pattern.
Embodiment:
Embodiment 1:
The cerous nitrate of getting 0.001mol places beaker, dissolve with the 10ml deionized water and stirring, the superoxol 10ml of quick adding 30%, stirred 10 minutes, after it is sent in the closed reactor, reacted 22 hours down at 240 ℃, again the product through reacting completely is cooled to normal temperature, after deionized water wash and 60 ℃ of dry products that get.Product is accredited as the cubic phase oxygen cerium through X-ray powder diffraction; TEM, SEM Electronic Speculum testing product pattern.
Embodiment 2:
The Cerium II Chloride of getting 0.0005mol places beaker, dissolve with the 10ml deionized water and stirring, join fast in the superoxol of 10ml 30%, stirred 10 minutes, after it is sent to closed reactor, reacted 6 hours down at 200 ℃, again the product through reacting completely is cooled to normal temperature, after deionized water wash and 50 ℃ of dry products that get.Product is accredited as the cerium oxide nano line through X-ray powder diffraction; TEM Electronic Speculum testing product pattern.
Embodiment 3:
The cerous nitrate of getting 0.00025mol places beaker, dissolve with the 10ml deionized water and stirring, join fast in the superoxol of 10ml 30%, stirred 8 minutes, after it is sent in the closed reactor, reacted 10 hours down at 230 ℃, again the product through reacting completely is cooled to normal temperature, after deionized water wash and 40 ℃ of dry products that get.Product is accredited as the cerium oxide nano line through X-ray powder diffraction; TEM Electronic Speculum testing product pattern.
Embodiment 4:
The Cerium II Chloride of getting 0.0005mol places beaker, dissolve with the 10ml deionized water and stirring, the superoxol 10ml of quick adding 30%, stirred 9 minutes, after it is sent in the closed reactor, reacted 15 hours down at 210 ℃, again the product through reacting completely is cooled to normal temperature, after deionized water wash and 70 ℃ of dry products that get.Product is accredited as the cubic phase oxygen cerium through X-ray powder diffraction; TEM, SEM Electronic Speculum testing product pattern.
Description of drawings:
Fig. 1 is the cerium oxide nano materials X-ray powder diffraction figure of the embodiment of the invention 1 preparation;
Fig. 2 is the cerium oxide nano materials transmission photo (TEM) of the embodiment of the invention 1 preparation;
Fig. 3 is the cerium oxide nano materials scanned photograph (SEM) of the embodiment of the invention 1 preparation;
Fig. 4 is the cerium oxide nano materials transmission photo (TEM) of the embodiment of the invention 2 preparations;
Fig. 5 is the cerium oxide nano materials transmission photo (TEM) of the embodiment of the invention 3 preparations.
Claims (3)
1, the synthetic method of cerium oxide nano materials is characterized in that this method carries out as follows:
A, in the soluble salt solution of cerium, add superoxol and stir precipitation to be generated; After
B, send into closed reactor, 200～250 ℃ of reactions 3～24 hours down, after the product through reacting completely is cooled to normal temperature; Again
C, with resulting product through washing and dry, the cerium oxide nano cubes.
2, the synthetic method of cerium oxide nano materials is characterized in that this method carries out as follows:
A, in superoxol, add the soluble salt solution of cerium and stir precipitation to be generated; After
B, send into closed reactor, 200～250 ℃ of reactions 3～24 hours down, after the product through reacting completely is cooled to normal temperature; Again
C, with resulting product through washing and dry, the cerium oxide nano line.
3, the synthetic method of cerium oxide nano materials according to claim 1 and 2, the soluble salt solution that it is characterized in that described cerium is the aqueous solution of cerous nitrate or Cerium II Chloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410023419 CN1242922C (en) | 2004-01-09 | 2004-01-09 | Synthesis method of cerium oxide nano material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410023419 CN1242922C (en) | 2004-01-09 | 2004-01-09 | Synthesis method of cerium oxide nano material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1556039A CN1556039A (en) | 2004-12-22 |
| CN1242922C true CN1242922C (en) | 2006-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200410023419 Expired - Fee Related CN1242922C (en) | 2004-01-09 | 2004-01-09 | Synthesis method of cerium oxide nano material |
Country Status (1)
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| CN (1) | CN1242922C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1312044C (en) * | 2005-07-15 | 2007-04-25 | 清华大学 | Process for synthesizing nano cerium oxide crystal material |
| CN101205078B (en) * | 2006-12-21 | 2010-06-09 | 中国科学院研究生院 | Method for preparing cerium dioxide nano-tube |
| CN101824745B (en) * | 2010-04-12 | 2013-07-17 | 江苏工业学院 | Method for preparing anti-UV fabric by in-situ method |
| CN106353267A (en) * | 2016-08-29 | 2017-01-25 | 浙江中检测研究院股份有限公司 | Method for detecting content of lead in blood by aid of nanometer cerium oxide-atomic absorption spectra |
| CN107814406A (en) * | 2016-09-14 | 2018-03-20 | 天津工业大学 | A kind of preparation method of ultra-fine cerium dioxide nano line |
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- 2004-01-09 CN CN 200410023419 patent/CN1242922C/en not_active Expired - Fee Related
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