CN105668649A - Preparation method and application of nano Co3O4 catalyst with cubic morphology - Google Patents
Preparation method and application of nano Co3O4 catalyst with cubic morphology Download PDFInfo
- Publication number
- CN105668649A CN105668649A CN201610010369.XA CN201610010369A CN105668649A CN 105668649 A CN105668649 A CN 105668649A CN 201610010369 A CN201610010369 A CN 201610010369A CN 105668649 A CN105668649 A CN 105668649A
- Authority
- CN
- China
- Prior art keywords
- nano
- catalyzer
- preparation
- looks
- cube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- UBEWDCMIDFGDOO-UHFFFAOYSA-N cobalt(II,III) oxide Inorganic materials [O-2].[O-2].[O-2].[O-2].[Co+2].[Co+3].[Co+3] UBEWDCMIDFGDOO-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000003054 catalyst Substances 0.000 title abstract description 11
- 230000003197 catalytic effect Effects 0.000 claims abstract description 17
- 238000003756 stirring Methods 0.000 claims abstract description 12
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims abstract description 9
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000004202 carbamide Substances 0.000 claims abstract description 8
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 8
- 150000001868 cobalt Chemical class 0.000 claims abstract description 7
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 7
- 239000008367 deionised water Substances 0.000 claims abstract description 6
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000004094 surface-active agent Substances 0.000 claims abstract description 5
- 239000011259 mixed solution Substances 0.000 claims abstract description 4
- 238000005406 washing Methods 0.000 claims abstract description 4
- 239000000243 solution Substances 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 13
- 230000003647 oxidation Effects 0.000 claims description 7
- 238000001354 calcination Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000001556 precipitation Methods 0.000 claims description 4
- 238000010792 warming Methods 0.000 claims description 4
- 229910021580 Cobalt(II) chloride Inorganic materials 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 18
- 239000000463 material Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 239000013078 crystal Substances 0.000 abstract description 4
- 238000001035 drying Methods 0.000 abstract description 4
- 150000001447 alkali salts Chemical class 0.000 abstract 2
- 239000002243 precursor Substances 0.000 abstract 2
- 238000004880 explosion Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000012716 precipitator Substances 0.000 abstract 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 24
- 229910002091 carbon monoxide Inorganic materials 0.000 description 24
- 239000007789 gas Substances 0.000 description 17
- 230000009466 transformation Effects 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000006555 catalytic reaction Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000005119 centrifugation Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000012495 reaction gas Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000002638 heterogeneous catalyst Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910001960 metal nitrate Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000011949 solid catalyst Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G51/00—Compounds of cobalt
- C01G51/04—Oxides; Hydroxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
- B01J23/75—Cobalt
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/04—Particle morphology depicted by an image obtained by TEM, STEM, STM or AFM
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/30—Particle morphology extending in three dimensions
- C01P2004/38—Particle morphology extending in three dimensions cube-like
Abstract
The invention relates to a preparation method and application of a nano Co3O4 catalyst with a cubic morphology, and belongs to the technical field of preparation of catalytic materials. The preparation method comprises the steps: firstly, dissolving a metal cobalt salt, a precipitator urea and a surfactant CTAB in deionized water, and stirring uniformly to form a mixed solution; placing the mixed solution in a reaction kettle, carrying out a hydrothermal reaction for 4-24 h under the condition of the temperature of 160-240 DEG C, and after the completion of the reaction, washing and centrifuging to obtain a Co(OH)x(CO3)0.5(2-x).nH2O basic salt precursor, wherein x is less than 2; and drying the obtained Co(OH)x(CO3)0.5(2-x).nH2O basic salt precursor, then heating up to 300-900 DEG C at a heating-up rate of 1-5 DEG C/min, and roasting for 4-24 h at constant temperature, to obtain the nano Co3O4 catalyst with the cubic morphology. The prepared nano Co3O4 catalyst has the cubic microtopography with more prepotent-explosion active crystal faces, and not only can be applied in CO catalytic oxidation reactions but also has higher activity and CO catalytic selectivity.
Description
Technical field
The present invention relates to a kind of cube looks nano Co3O4The preparation method of catalyzer and application thereof, belong to catalytic material preparing technical field.
Background technology
Along with the fast development of modern economy, taking coal, oil and natural gas as the use of the fossil oil of pillar increasingly extensive, the atmosphere polluting problem that the air pollutant such as carbon monoxide (CO) are discharged and cause in a large number is also day by day outstanding. According to investigation, industrial production waste gas and communications and transportation tail gas are the major source causing topsoil, and wherein the urban air pollution of more than 70% comes from motor vehicle exhaust. CO is the main component of vehicle exhaust, and the CO overwhelming majority in urban atmospheric pollution thing comes from motor vehicle exhaust. At present, the purification thinking that vehicle exhaust carries out catalysis aftertreatment is considered as reducing the most effective and feasible method of the pollutant emissions such as CO.
Catalyzed reaction is an important branch of chemical reaction, about has the chemical process of 90% can relate to the use of catalyzer. Catalyzer is generally improve chemical reaction rate by reducing reaction activity, and when the activation energy particularly making reaction control trot rapid when it reduces, speed of reaction will greatly improve, and greatly shortens reaction required time. Thus finding out, the industrialized production of modern society is played extremely important effect by exploitation and the use of catalyzer. Especially generally occur in the heterogeneous catalytic reaction that solid catalyst surface occurs, as an important directions of catalyzed reaction, its fundamental research and industrial application have been become the focus direction of modern chemical industry development.
Conventional investigators are usually by finding new catalytic material, reduce catalyst particle size and increase the catalyst specific surface mode finding specified chemical composition and simple control physical structure such as long-pending and develop the performance prepared new catalyst or improve catalyzer, bigger can improve the kind of catalyzer, activity, stability and selectivity like this. But, along with Chemical Manufacture and carbon resource are utilized the growing interest of the environmental problem produced in process by people, impel Chemical Manufacture to develop to environmentally friendly catalysis and efficient green chemistry direction. In addition, big quantity research shows, the catalytic performance of nano material depends on shape looks and the size of this material to a great extent, by can the active crystal face of selectivity exposing material to the controlledly synthesis of shape looks. Therefore, at the heterogeneous catalyst material of molecular level design and development different-shape, improve the service efficiency of catalyst atoms to greatest extent, and selectivity exposes active crystal face, become the new focus of catalyzer research and development with preparation to reach the thinking of the targets such as the catalytic activity, catalytic selectivity and the wearing quality that improve catalyzer.
Summary of the invention
For above-mentioned prior art Problems existing and deficiency, the present invention provides a kind of cube looks nano Co3O4The preparation method of catalyzer and application thereof.The nano Co that the present invention prepares3O4Catalyzer has cube microscopic appearance that more advantages expose active crystal face, can not only be applied in CO catalytic oxidation, and have higher activity and CO catalytic selectivity, and the present invention is achieved through the following technical solutions.
A kind of cube looks nano Co3O4The preparation method of catalyzer, its concrete steps are as follows:
(1) first Cobalt salts, precipitation agent urea and Surfactant CTAB (cetyl trimethylammonium bromide) are dissolved in deionized water for stirring even, form mixing solutions;
(2) mixing solutions is placed in reactor, under temperature is 160～240 DEG C of conditions, carries out hydro-thermal reaction 4～24h, carry out after having reacted washing, centrifugal obtain Co (OH)x(CO3)0.5(2-x)·nH2O subsalt presoma (wherein x 2);
(3) Co (OH) step (2) obtainedx(CO3)0.5(2-x)·nH2O subsalt presoma is dried, and is then warming up to 300～900 DEG C and constant temperature calcining 4 ~ 24h with the temperature rise rate of 1 ~ 5 DEG C/min, obtains cube looks nano Co3O4Catalyzer.
In described step (1), cobalt salt is CoCl2·6H2O、C4H6O4·Co·4H2O or Co (NO3)2·6H2O。
Mixed solution C o in described step (1)2+Volumetric molar concentration is 0.04mol/L, and the volumetric molar concentration of precipitation agent urea is 0.10～0.16mol/L, and the mass concentration of Surfactant CTAB is 1～12g/L.
A kind of nano Co3O4The application of catalyzer, this cube looks nano Co3O4Catalyzer can be applied in CO catalytic oxidation.
The invention has the beneficial effects as follows:
(1) nanometer non-noble metal oxide catalyst (nano Co that the present invention proposes3O4Catalyzer) to prepare raw material cheap, adopts catalyst prod homogeneity prepared by hydrothermal method and stability higher, and conversion unit is simple, and simple operating steps, can produce nanostructured catalyst material efficiently, continuously.
(2) catalyzer provided by the invention has higher target product selectivity, efficiently toxic gas CO Catalytic Oxygen can be melted into nontoxic CO2, it is possible to the discharge of CO pollutent in vehicle exhaust is reduced as car tail gas purificant.
Accompanying drawing explanation
Fig. 1 is the nano Co that the embodiment of the present invention 1 prepares3O4The XRD figure of catalyzer;
Fig. 2 is the nano Co that the embodiment of the present invention 1 prepares3O4The TEM of catalyzer characterizes micro-structure diagram.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Embodiment 1
This cube looks nano Co3O4The preparation method of catalyzer, its concrete steps are as follows:
(1) by 0.004mol metal nitrate Co (NO3)2·6H2O, 0.016mol urea and 1gCTAB(cetyl trimethylammonium bromide) it is dissolved in deionized water to be mixed with the mixing solutions of 100mL and stir (stirring 100min with the stirring velocity of 200r/min) evenly, form mixing solutions;
(2) mixing solutions is placed in reactor, under temperature is 160 DEG C of conditions, carries out hydro-thermal reaction 16h, carry out after having reacted washing, centrifugal (centrifugation rate is 6000rpm) separation obtain Co (OH)x(CO3)0.5(2-x)·nH2O subsalt presoma (wherein x 2);
(3) Co (OH) step (2) obtainedx(CO3)0.5(2-x)·nH2O subsalt presoma dries (drying 12h at 100 DEG C), is then warming up to 400 DEG C by 2 DEG C/min of temperature rise rate and constant temperature calcining 4h, obtains cube looks nano Co3O4Catalyzer.
The cube looks nano Co that the present embodiment prepares3O4The XRD figure of the preparation method of catalyzer as shown in Figure 1, nano Co3O4The micro-structure diagram that the TEM of catalyzer characterizes is as shown in Figure 2.
The cube looks nano Co that the present embodiment is prepared3O4The detailed process being applied in CO catalytic oxidation of catalyzer is: by 0.2g cube looks nano Co3O4Catalyzer loads in the middle part of the silica tube of fixed-bed reactor, leads to into high-purity N2(purity is 99.99%, and gas flow is 200ml/min) 30min, fully to get rid of other foreign gas. Then, switch reaction gas (1%CO-10%O2-89%N2, gas flow is 200ml/min) lead to into reaction unit, and carry out temperature-programmed reaction with the temperature rise rate of 5 DEG C/min, product gas is analyzed online by gas chromatograph. Finally, calculating CO transformation efficiency, the results are shown in Table 1 for it.
Embodiment 2
This cube looks nano Co3O4The preparation method of catalyzer, its concrete steps are as follows:
(1) by 0.004mol Cobalt salts C4H6O4·Co·4H2O, 0.014mol urea and 1.2gCTAB(cetyl trimethylammonium bromide) it is dissolved in deionized water to be mixed with the mixing solutions of 100mL and stir (stirring 100min with the stirring velocity of 200r/min) evenly, form mixing solutions;
(2) mixing solutions is placed in reactor, under temperature is 240 DEG C of conditions, carries out hydro-thermal reaction 4h, carry out centrifugal (centrifugation rate is 6000rpm) separation after having reacted and obtain Co (OH)x(CO3)0.5(2-x)·nH2O subsalt presoma (wherein x 2);
(3) Co (OH) step (2) obtainedx(CO3)0.5(2-x)·nH2O subsalt presoma dries (drying 12h at 100 DEG C), is then warming up to 300 DEG C by 1 DEG C/min of temperature rise rate and constant temperature calcining 24h, obtains cube looks nano Co3O4Catalyzer.
The cube looks nano Co that the present embodiment is prepared3O4The detailed process being applied in CO catalytic oxidation of catalyzer is: by 0.2g cube looks nano Co3O4Catalyzer loads in the middle part of the silica tube of fixed-bed reactor, leads to into high-purity N2(purity is 99.99%, and gas flow is 200ml/min) 30min, fully to get rid of other foreign gas. Then, switch reaction gas (1%CO-10%O2-89%N2, gas flow is 200ml/min) lead to into reaction unit, and carry out temperature-programmed reaction with the temperature rise rate of 5 DEG C/min, product gas is analyzed online by gas chromatograph. Finally, calculating CO transformation efficiency, the results are shown in Table 1 for it.
Embodiment 3
This cube looks nano Co3O4The preparation method of catalyzer, its concrete steps are as follows:
(1) by 0.004mol Cobalt salts CoCl2·6H2O, 0.010mol urea and 0.1gCTAB(cetyl trimethylammonium bromide) it is dissolved in deionized water to be mixed with the mixing solutions of 100mL and stir (stirring 100min with the stirring velocity of 200r/min) evenly, form mixing solutions;
(2) mixing solutions is placed in reactor, under temperature is 200 DEG C of conditions, carries out hydro-thermal reaction 24h, carry out centrifugal (centrifugation rate is 6000rpm) separation after having reacted and obtain Co (OH)x(CO3)0.5(2-x)·nH2O subsalt presoma (wherein x 2); ;
(3) Co (OH) step (2) obtainedx(CO3)0.5(2-x)·nH2O subsalt presoma dries (drying 12h at 100 DEG C), then rises to temperature by 5 DEG C/min of temperature rise rate and is 900 DEG C and roasting 6h, obtains cube looks nano Co3O4Catalyzer.
The cube looks nano Co that the present embodiment is prepared3O4The detailed process being applied in CO catalytic oxidation of catalyzer is: by 0.2g cube looks nano Co3O4Catalyzer loads in the middle part of the silica tube of fixed-bed reactor, leads to into high-purity N2(purity is 99.99%, and gas flow is 200ml/min) 30min, fully to get rid of other foreign gas.Then, switch reaction gas (1%CO-10%O2-89%N2, gas flow is 200ml/min) lead to into reaction unit, and carry out temperature-programmed reaction with the temperature rise rate of 5 DEG C/min, product gas is analyzed online by gas chromatograph. Finally, calculating CO transformation efficiency, the results are shown in Table 1 for it.
Table 1
Note: T10Represent that CO transformation efficiency is temperature when 10%; T90Represent that CO transformation efficiency is temperature when 90%.
As can be seen from Table 1: the cube looks nano Co prepared by above-described embodiment3O4Catalyzer has lower initial reaction temperature in CO catalytic oxidation, and CO transformation efficiency can be made to reach more than 90% within a short period of time, finally achieves the conversion completely of CO. With Co prepared by existing additive method3O4Catalyzer is compared, the cube looks nano Co prepared by the present invention3O4Catalyzer has better CO low temperature active and the complete conversion capability of CO, is conducive to improving the innocuously transformation efficiency of CO.
Below by reference to the accompanying drawings the specific embodiment of the present invention is explained in detail, but the present invention is not limited to above-mentioned enforcement mode, in the ken that those of ordinary skill in the art possess, it is also possible to make various change under the prerequisite not departing from objective of the present invention.
Claims (4)
1. a cube looks nano Co3O4The preparation method of catalyzer, it is characterised in that concrete steps are as follows:
(1) first Cobalt salts, precipitation agent urea and Surfactant CTAB are dissolved in deionized water and stir and evenly form mixing solutions;
(2) mixing solutions is placed in reactor, under temperature is 160～240 DEG C of conditions, carries out hydro-thermal reaction 4～24h, carry out after having reacted washing, centrifugal obtain Co (OH)x(CO3)0.5(2-x)·nH2O subsalt presoma, wherein x 2;
(3) Co (OH) step (2) obtainedx(CO3)0.5(2-x)·nH2O subsalt presoma is dried, and is then warming up to 300～900 DEG C and constant temperature calcining 4 ~ 24h with the temperature rise rate of 1 ~ 5 DEG C/min, namely obtains cube looks nano Co3O4Catalyzer.
2. cube looks nano Co according to claim 13O4The preparation method of catalyzer, it is characterised in that: in described step (1), cobalt salt is CoCl2·6H2O、C4H6O4·Co·4H2O or Co (NO3)2·6H2O。
3. cube looks nano Co according to claim 13O4The preparation method of catalyzer, it is characterised in that: mixed solution C o in described step (1)2+Volumetric molar concentration is 0.04mol/L, and the volumetric molar concentration of precipitation agent urea is 0.10～0.16mol/L, and the mass concentration of Surfactant CTAB is 1～12g/L.
4. a cube looks nano Co described arbitrarily according to claims 1 to 33O4The nano Co that the preparation method of catalyzer prepares3O4The application of catalyzer, it is characterised in that: this cube looks nano Co3O4Catalyzer can be applied in CO catalytic oxidation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610010369.XA CN105668649A (en) | 2016-01-08 | 2016-01-08 | Preparation method and application of nano Co3O4 catalyst with cubic morphology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610010369.XA CN105668649A (en) | 2016-01-08 | 2016-01-08 | Preparation method and application of nano Co3O4 catalyst with cubic morphology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105668649A true CN105668649A (en) | 2016-06-15 |
Family
ID=56299508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610010369.XA Pending CN105668649A (en) | 2016-01-08 | 2016-01-08 | Preparation method and application of nano Co3O4 catalyst with cubic morphology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105668649A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106348350A (en) * | 2016-10-17 | 2017-01-25 | 宿州学院 | Preparation method for nanometer cube cobaltosic oxide |
| CN107827166A (en) * | 2017-11-20 | 2018-03-23 | 陕西科技大学 | A kind of octahedral cobalt oxide micro-nano granules material preparation method |
| CN109095514A (en) * | 2018-09-11 | 2018-12-28 | 安徽工业大学 | One kind preparing different-shape P2-Na with template0.7CoO2The method of material |
| CN109748329A (en) * | 2019-03-05 | 2019-05-14 | 西安工业大学 | A kind of self-dispersed Co of two dimension high porosity3O4Nanometer Bird's Nest and preparation method thereof |
| CN110420639A (en) * | 2019-08-08 | 2019-11-08 | 中南大学 | A kind of cobaltosic oxide material and its methods for making and using same |
| CN112342559A (en) * | 2020-10-27 | 2021-02-09 | 陕西科技大学 | Oxygen vacancy-containing electrolyzed water oxygen evolution catalyst and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200308A (en) * | 2007-11-09 | 2008-06-18 | 浙江华友钴镍材料有限公司 | Preparation method of cobaltosic oxide for electric battery |
| CN103318976A (en) * | 2013-07-04 | 2013-09-25 | 中南大学 | Technology for preparing cobaltosic oxide by cobalt-containing solution |
| CN104495956A (en) * | 2014-12-10 | 2015-04-08 | 北京化工大学 | Preparation method of controllable-shape tricobalt tetraoxide by changing anions |
-
2016
- 2016-01-08 CN CN201610010369.XA patent/CN105668649A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200308A (en) * | 2007-11-09 | 2008-06-18 | 浙江华友钴镍材料有限公司 | Preparation method of cobaltosic oxide for electric battery |
| CN103318976A (en) * | 2013-07-04 | 2013-09-25 | 中南大学 | Technology for preparing cobaltosic oxide by cobalt-containing solution |
| CN104495956A (en) * | 2014-12-10 | 2015-04-08 | 北京化工大学 | Preparation method of controllable-shape tricobalt tetraoxide by changing anions |
Non-Patent Citations (2)
| Title |
|---|
| SIYUAN XIA ET AL.: "A model of interface-related enhancement based on the contrast between Co3O4 sphere and cube for electrochemical detection of hydrogen peroxide", 《ELECTROCHEMISTRY COMMUNICATIONS》 * |
| 黄樊: "氧化钴基催化剂材料形貌、晶面控制与催化剂性能研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106348350A (en) * | 2016-10-17 | 2017-01-25 | 宿州学院 | Preparation method for nanometer cube cobaltosic oxide |
| CN107827166A (en) * | 2017-11-20 | 2018-03-23 | 陕西科技大学 | A kind of octahedral cobalt oxide micro-nano granules material preparation method |
| CN109095514A (en) * | 2018-09-11 | 2018-12-28 | 安徽工业大学 | One kind preparing different-shape P2-Na with template0.7CoO2The method of material |
| CN109748329A (en) * | 2019-03-05 | 2019-05-14 | 西安工业大学 | A kind of self-dispersed Co of two dimension high porosity3O4Nanometer Bird's Nest and preparation method thereof |
| CN109748329B (en) * | 2019-03-05 | 2021-05-18 | 西安工业大学 | Two-dimensional high-porosity self-dispersed Co3O4Nano bird nest and preparation method thereof |
| CN110420639A (en) * | 2019-08-08 | 2019-11-08 | 中南大学 | A kind of cobaltosic oxide material and its methods for making and using same |
| CN112342559A (en) * | 2020-10-27 | 2021-02-09 | 陕西科技大学 | Oxygen vacancy-containing electrolyzed water oxygen evolution catalyst and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105668649A (en) | Preparation method and application of nano Co3O4 catalyst with cubic morphology | |
| CN105498782A (en) | Preparing method for cubic morphology nano-composite metal oxide catalyst CeO2-Co3O4 | |
| CN107362807B (en) | Mn/Co-based low-temperature SCO catalyst and preparation method thereof | |
| CN102600850B (en) | A kind of preparation method of the catalyst of elimination cos and Carbon bisulfide simultaneously | |
| CN103691481B (en) | A kind of support type multi-stage porous Beta molecular sieve catalyst and its preparation method and application | |
| CN104307530B (en) | A kind of graphite oxide thiazolinyl RE composite catalysis material and preparation method thereof | |
| CN101791549B (en) | Method for preparing formed selective catalytic reduction denitration catalyst by using ultrasonic mixing sedimentation method | |
| CN105214670B (en) | Preparation and method of testing using former iron ore as the middle low temperature support type denitrating catalyst of carrier | |
| CN103752323A (en) | Preparation method for denitrified catalyst with nanometer multi-wall spherical spinel structure | |
| CN102389791A (en) | Desulfurization and denitrification catalyst taking kaolin as carrier and preparation method thereof | |
| CN105597769A (en) | Preparing method for flake-feature nano-composite metal oxide catalyst CeO2-Co3O4 | |
| CN104772143A (en) | Preparation method of supported sludge-base catalyst for removing low-concentration carbon disulfide | |
| CN106732581A (en) | A kind of Ru/CeTiO for low-temperature SCR reactionXThe preparation method of catalyst | |
| CN104815671A (en) | Selective catalytic reduction low-temperature denitration catalyst and preparation method thereof | |
| CN105561982A (en) | Low-temperature SCR (selective catalytic reduction) flue gas denitration catalyst with gamma-MnO2 nanometer sheets, method for preparing low-temperature SCR flue gas denitration catalyst and application thereof | |
| CN103611550B (en) | A kind of preparation method of molybdenum bisuphide-silver metavanadate composite Nano photochemical catalyst | |
| CN105126821B (en) | A kind of flower-shaped Bi2MoO6Preparation and its in photo catalytic reduction CO2In application | |
| CN106552643A (en) | It is a kind of that there is high resistance to SO_2 iron ore denitrating catalyst and its preparation method and application | |
| CN112337460A (en) | Method for preparing Mn-based spinel low-temperature denitration catalyst by using complex acid solution | |
| CN104492436B (en) | A kind of carbon back magnetic solid base catalyst and application thereof | |
| CN110193368B (en) | Preparation method of spinel type catalytic material | |
| CN103586047A (en) | Preparation method of nickel foam base integral denitration catalyst with three-dimensional hierarchical structure | |
| CN110404542A (en) | A kind of core-shell structure copolymer ball CoFe2O4Catalyst and the preparation method and application thereof | |
| CN113856667A (en) | Method for preparing denitration catalyst by utilizing titanium-containing blast furnace slag | |
| CN106799225B (en) | A kind of potassium support type soot combustion catalyst and its preparation method and application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160615 |
|
| RJ01 | Rejection of invention patent application after publication |