CN104779386A - Manganese cobaltate octahedral nanomaterial and preparation method thereof - Google Patents
Manganese cobaltate octahedral nanomaterial and preparation method thereof Download PDFInfo
- Publication number
- CN104779386A CN104779386A CN201510132991.3A CN201510132991A CN104779386A CN 104779386 A CN104779386 A CN 104779386A CN 201510132991 A CN201510132991 A CN 201510132991A CN 104779386 A CN104779386 A CN 104779386A
- Authority
- CN
- China
- Prior art keywords
- octahedral
- nanomaterial
- cobalt acid
- acid manganese
- deionized water
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- 239000011572 manganese Substances 0.000 title claims abstract description 43
- 229910052748 manganese Inorganic materials 0.000 title claims abstract description 38
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 239000002086 nanomaterial Substances 0.000 title abstract description 8
- 238000002360 preparation method Methods 0.000 title abstract description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000008367 deionised water Substances 0.000 claims abstract description 17
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 16
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 11
- 229910001416 lithium ion Inorganic materials 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims abstract description 6
- 229910002651 NO3 Inorganic materials 0.000 claims abstract description 4
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 33
- 239000010941 cobalt Substances 0.000 claims description 30
- 229910017052 cobalt Inorganic materials 0.000 claims description 30
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 30
- 239000002253 acid Substances 0.000 claims description 28
- 239000004094 surface-active agent Substances 0.000 claims description 7
- 238000005119 centrifugation Methods 0.000 claims description 6
- 235000019441 ethanol Nutrition 0.000 claims description 6
- 239000013049 sediment Substances 0.000 claims description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 abstract 4
- 239000002202 Polyethylene glycol Substances 0.000 abstract 2
- 229920001223 polyethylene glycol Polymers 0.000 abstract 2
- 239000002244 precipitate Substances 0.000 abstract 2
- QGUAJWGNOXCYJF-UHFFFAOYSA-N cobalt dinitrate hexahydrate Chemical compound O.O.O.O.O.O.[Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O QGUAJWGNOXCYJF-UHFFFAOYSA-N 0.000 abstract 1
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(II) nitrate Inorganic materials [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 239000002131 composite material Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- MZZUATUOLXMCEY-UHFFFAOYSA-N cobalt manganese Chemical compound [Mn].[Co] MZZUATUOLXMCEY-UHFFFAOYSA-N 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 239000011149 active material Substances 0.000 description 2
- 239000010406 cathode material Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000002001 electrolyte material Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910000428 cobalt oxide Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910001947 lithium oxide Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- ZPIRTVJRHUMMOI-UHFFFAOYSA-N octoxybenzene Chemical compound CCCCCCCCOC1=CC=CC=C1 ZPIRTVJRHUMMOI-UHFFFAOYSA-N 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 229910000314 transition metal oxide Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention provides a manganese cobaltate octahedral nanomaterial and a preparation method thereof. The method comprises the following steps: dissolving Mn(NO3)2 and Co(NO3)2.6H2O in deionized water, and adding anhydrous ethanol; adding polyethylene glycol octylphenol ether to the above obtained solution according to a molar ratio of nitrate to polyethylene glycol octylphenol ether of 1:4-1:0.25, transferring the obtained solution to a hydrothermal reaction kettle, and reacting; and opening the kettle, centrifuging, separating the obtained precipitate, washing the precipitate with deionized water and alcohol, and drying at 60-80DEG C to obtain the manganese cobaltate octahedral nanomaterial. The particle dimension of the manganese cobaltate octahedral nanomaterial prepared in the invention is not greater than 400nm. The manganese cobaltate octahedral nanomaterial can be used as a lithium ion battery. Test results show that the first discharge capacity of the manganese cobaltate octahedral nanomaterial under a current density of 50-200mAg<-1> reaches 1400mAhg<-1>, and the specific capacity of the manganese cobaltate octahedral nanomaterial after 25 cycles still reaches above 750mAhg<-1>; and the preparation method has the characteristics of simple operation and energy saving.
Description
Technical field
The invention belongs to inorganic nano material synthesis field.In particular, relate to by surfactant hydro-thermal legal system for the octahedra material of cobalt acid manganese nanometer and method.
Background technology
Cobalt acid manganese (MnCo
2o
4.5) material is the negative material being applied to lithium ion battery, MnCo
2o
4.5than common MnCo
2o
4many 0.5 O atoms, namely produce many rooms, good conductivity, overcome the shortcoming of other transition metal oxide poorly conductive.MnCo
2o
4.5for the composite oxides of manganese and cobalt, both maintained the cyclical stability of Mn oxide, had again the height ratio capacity characteristic of cobalt/cobalt oxide concurrently.Utilize MnCo
2o
4.5as lithium ion battery negative material, not only raw material rich reserves, cheap, and specific capacity is high.MnCo
2o
4.5lithium is stored up by redox reaction, when lithium embeds, metal oxide is reduced into metallic crystal (Mn and Co) and is dispersed in lithia matrix, when lithium is deviate from, they are oxidized to again corresponding metal oxide, and thus the reversible theoretical capacity of cobalt manganese composite oxide is apparently higher than graphite.
Although the composite oxide cathode material of different-shape obtained at present has very high capacity, its capacity attenuation is too fast, becomes the matter of utmost importance limiting its practical application.The oxide cathode material of nanometer is by increasing the contact area of electrolyte and active material, the internal resistance of battery is reduced, and in charge and discharge cycles process, the diffusion transport distance of lithium ion and electronics can be reduced, thus improve the performance of lithium ion battery of material to a certain extent.So how preparing the nanometer cobalt manganese composite oxide that particle size is little and homogeneous, is the efficient cobalt manganese composite oxide lithium cell negative pole material problem demanding prompt solution of preparation.
Summary of the invention
The object of the invention is by Value 3608 surfactant hydro-thermal method, make crystal grain in growth, obtain effective appearance and size and control, provide a kind of method preparing the octahedra material of single-size cobalt acid manganese nanometer.
The invention provides a kind of method preparing the octahedra material of single-size cobalt acid manganese nanometer, the method, on the basis of hydro-thermal, adopts Value 3608 as surfactant, and a step obtains the homogeneous octahedra material of cobalt acid manganese nanometer of appearance and size.The octahedra material particles size of cobalt acid manganese nanometer is little, and specific area is large, can reduce the internal resistance of cell, reduces the diffusion transport distance of lithium ion and electronics, is conducive to the performance improving lithium ion battery.At 50-200mAg
-1current density under test its performance, discharge capacity can reach 1400mAhg first
-1above, its specific capacity after 25 times that circulates still can reach 750mAhg
-1above.
Concrete technical scheme of the present invention is as follows:
The present invention prepares the octahedra material of cobalt acid manganese nanometer and method, on the basis of hydro-thermal, adopts Value 3608 as surfactant, and a step obtains the octahedra material of cobalt acid manganese nanometer.
Concrete steps are as follows:
1). by Mn (NO
3)
2, Co (NO
3)
26H
2o is dissolved in deionized water, adds absolute ethyl alcohol, and the volume ratio of deionized water and absolute ethyl alcohol is 1:2-1:0.5;
2). to step 1) adding Value 3608 in solution, the mol ratio of nitrate and Value 3608 is 1:4 ~ 1:0.25, then transfers in hydrothermal reaction kettle and reacts;
3). open centrifugation sediment after still, with deionized water and ethanol wash, then at 60-80 DEG C, drying obtains cobalt acid manganese octahedron material.
Described step 1) in, Mn (NO
3)
2with Co (NO
3)
26H
2the mol ratio of O is 1:2.
Described step 2) at 120-180 DEG C of temperature, in hydrothermal reaction kettle, add thermal response 8-12h.
Prepare the octahedra material particles size of cobalt acid manganese nanometer and be less than or equal to 400nm.The octahedra material of cobalt acid manganese nanometer is used as lithium ion battery.
The invention provides a kind of surfactant water thermal control pattern synthetic method preparing the octahedra material of single-size cobalt acid manganese nanometer.Other preparation methods relatively, material has nanometer octahedral structure and size uniformity, is less than or equal to 400nm, and equipment is simple, simple process.
Effect of the present invention is: a step hydro-thermal can prepare the octahedra material of cobalt acid manganese nanometer of single-size, by adding of surfactant polyethylene list octyl phenyl ether, significantly improve size, the appearance structure of cobalt acid manganese material prepared by hydro thermal method.The octahedra material particles size of cobalt acid manganese nanometer is less than or equal to 400nm, specific area is large, the contact area of electrolyte and active material can be increased, the internal resistance of battery is reduced, and in charge and discharge cycles process, the diffusion transport distance of lithium ion and electronics can be reduced, thus improve the performance of lithium ion battery of material to a certain extent.At 50-200mAg
-1current density under test its performance, discharge capacity can reach 1400mAhg first
-1above, its specific capacity after 25 times that circulates still can reach 750mAhg
-1above.The inventive method has the features such as simple to operate, the saving energy, raw material are easy to get.
Accompanying drawing explanation
Fig. 1 is MnCo prepared by embodiment 1
2o
4.5stereoscan photograph, the product prepared by explanation has nanometer octahedral structure, size uniformity and be less than or equal to 400nm.
Fig. 2 is MnCo prepared by embodiment 2
2o
4.5x-ray diffractogram, the product prepared by explanation has pure composition.
Fig. 3 is MnCo prepared by embodiment 3
2o
4.5stereoscan photograph, the product prepared by explanation has nanometer octahedral structure, size uniformity and be less than or equal to 400nm.
Embodiment
Preferred embodiment method concrete steps are as follows:
1). by Mn (NO
3)
2, Co (NO
3)
26H
2o is dissolved in deionized water, ensures Mn (NO
3)
2with Co (NO
3)
26H
2the mol ratio of O is 1:2, adds absolute ethyl alcohol, and the volume ratio of deionized water and absolute ethyl alcohol is 1:2-1:0.5, mixes.
2). in solution, add Value 3608, the mol ratio of nitrate and Value 3608 is 1:4-1:0.25, transfers to afterwards in hydrothermal reaction kettle, at 120-180 DEG C of temperature, heats 8-12h.
3). open centrifugation sediment after still, with deionized water and ethanol wash for several times, the then dry cobalt acid manganese octahedron material that can obtain size and be less than or equal to 400nm at 60-80 DEG C.
Embodiment 1:
By 0.002molMn (NO
3)
2, 0.004Co (NO
3)
26H
2o is dissolved in 12ml deionized water, adds 24ml absolute ethyl alcohol, mixes.Add the Value 3608 of 0.024mol, mix, solution is transferred in hydrothermal reaction kettle, at 120 DEG C of temperature, heat 12h.Open centrifugation sediment after still, with deionized water and ethanol wash for several times, then at 60 DEG C, drying obtains the octahedra material of cobalt acid manganese nanometer.As shown in Figure 1, the product prepared by explanation has nanometer octahedral structure to the stereoscan photograph of prepared cobalt acid manganese, size uniformity and be less than or equal to 400nm.At 200mAg
-1current density under test its performance, discharge capacity can reach 1400mAhg first
-1above, its specific capacity after 25 times that circulates still can reach 750mAhg
-1above.
Embodiment 2:
By 0.002molMn (NO
3)
2, 0.004Co (NO
3)
26H
2o is dissolved in 18ml deionized water, adds 18ml absolute ethyl alcohol, mixes.Add the Value 3608 of 0.006mol, mix, solution is transferred in hydrothermal reaction kettle, at 150 DEG C of temperature, heat 10h.Open centrifugation sediment after still, with deionized water and ethanol wash for several times, then at 70 DEG C, drying obtains the octahedra material of cobalt acid manganese nanometer.As shown in Figure 2, the product prepared by explanation has pure composition to the X-ray diffractogram of the prepared octahedra material of cobalt acid manganese nanometer.At 100mAg
-1current density under test its performance, discharge capacity can reach 1400mAhg first
-1above, its specific capacity after 25 times that circulates still can reach 750mAhg
-1above.
Embodiment 3:
By 0.002molMn (NO
3)
2, 0.004Co (NO
3)
26H
2o is dissolved in 24ml deionized water, adds 12ml absolute ethyl alcohol, mixes.Add the Value 3608 of 0.0015mol, mix, solution is transferred in hydrothermal reaction kettle, at 180 DEG C of temperature, heat 8h.Open centrifugation sediment after still, with deionized water and ethanol wash for several times, then at 80 DEG C, drying obtains the octahedra material of cobalt acid manganese nanometer.As shown in Figure 3, the product prepared by explanation has nanometer octahedral structure to the stereoscan photograph of prepared cobalt acid manganese material, size uniformity and be less than or equal to 400nm.At 50mAg
-1current density under test its performance, discharge capacity can reach 1400mAhg first
-1above, its specific capacity after 25 times that circulates still can reach 750mAhg
-1above.
To sum up the accompanying drawing of embodiment also can clearly be found out, the product prepared by the present invention has nanometer octahedral structure, size uniformity and be less than or equal to 400nm.
Claims (6)
1. prepare the method for the octahedra material of cobalt acid manganese nanometer, it is characterized in that on the basis of hydro-thermal, adopt Value 3608 as surfactant, a step obtains the octahedra material of cobalt acid manganese nanometer.
2. the method for claim 1, is characterized in that step is as follows:
1). by Mn (NO
3)
2, Co (NO
3)
26H
2o is dissolved in deionized water, adds absolute ethyl alcohol, and the volume ratio of deionized water and absolute ethyl alcohol is 1:2-1:0.5;
2). to step 1) adding Value 3608 in solution, the mol ratio of nitrate and Value 3608 is 1:4 ~ 1:0.25, then transfers in hydrothermal reaction kettle and reacts;
3). open centrifugation sediment after still, with deionized water and ethanol wash, then at 60-80 DEG C, drying obtains cobalt acid manganese octahedron material.
3. method as claimed in claim 2, is characterized in that described step 1) in, Mn (NO
3)
2with Co (NO
3)
26H
2the mol ratio of O is 1:2.
4. method as claimed in claim 2, is characterized in that described step 2) in, at 120-180 DEG C of temperature, in hydrothermal reaction kettle, add thermal response 8-12h.
5. prepare the octahedra material particles size of cobalt acid manganese nanometer and be less than or equal to 400nm.
6. the octahedra material of cobalt acid manganese nanometer is used as lithium ion battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510132991.3A CN104779386B (en) | 2015-03-25 | 2015-03-25 | Manganese cobaltate octahedral nanomaterial and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510132991.3A CN104779386B (en) | 2015-03-25 | 2015-03-25 | Manganese cobaltate octahedral nanomaterial and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104779386A true CN104779386A (en) | 2015-07-15 |
| CN104779386B CN104779386B (en) | 2017-02-22 |
Family
ID=53620728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510132991.3A Expired - Fee Related CN104779386B (en) | 2015-03-25 | 2015-03-25 | Manganese cobaltate octahedral nanomaterial and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104779386B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106115798A (en) * | 2016-06-16 | 2016-11-16 | 齐鲁工业大学 | A kind of MnCo2o4hexagonal nanometer rods and method for preparing Nano cube |
| CN108598426A (en) * | 2018-04-26 | 2018-09-28 | 吉林大学 | The method for improving its charge/discharge capacity by preparing cobalt acid manganese/N doping carbon/manganese dioxide nucleocapsid |
| CN109119251A (en) * | 2018-08-30 | 2019-01-01 | 中北大学 | A kind of porous MnCo2O4.5The preparation method of electrode material |
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|---|---|---|---|---|
| CN102468478A (en) * | 2010-11-17 | 2012-05-23 | 中国科学院大连化学物理研究所 | Preparation method of nano-scale compound metal oxide octahedron |
| CN103073072A (en) * | 2013-01-29 | 2013-05-01 | 安泰科技股份有限公司 | Manganese cobalt composite oxide (MnCo2O4) magnetic nanocrystal and preparation method thereof |
| CN103474254A (en) * | 2013-09-26 | 2013-12-25 | 哈尔滨工程大学 | Preparation method for supercapacitor electrode material containing MnCo2O4.5 |
-
2015
- 2015-03-25 CN CN201510132991.3A patent/CN104779386B/en not_active Expired - Fee Related
Patent Citations (3)
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| CN102468478A (en) * | 2010-11-17 | 2012-05-23 | 中国科学院大连化学物理研究所 | Preparation method of nano-scale compound metal oxide octahedron |
| CN103073072A (en) * | 2013-01-29 | 2013-05-01 | 安泰科技股份有限公司 | Manganese cobalt composite oxide (MnCo2O4) magnetic nanocrystal and preparation method thereof |
| CN103474254A (en) * | 2013-09-26 | 2013-12-25 | 哈尔滨工程大学 | Preparation method for supercapacitor electrode material containing MnCo2O4.5 |
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| Title |
|---|
| ZHAO-QING LIU ET AL: "Facile hydrothermal synthesis of urchin-like NiCo2O4 spheres as efficient electrocatalysts for oxygen reduction reaction", 《HYDROGEN ENERGY》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106115798A (en) * | 2016-06-16 | 2016-11-16 | 齐鲁工业大学 | A kind of MnCo2o4hexagonal nanometer rods and method for preparing Nano cube |
| CN108598426A (en) * | 2018-04-26 | 2018-09-28 | 吉林大学 | The method for improving its charge/discharge capacity by preparing cobalt acid manganese/N doping carbon/manganese dioxide nucleocapsid |
| CN109119251A (en) * | 2018-08-30 | 2019-01-01 | 中北大学 | A kind of porous MnCo2O4.5The preparation method of electrode material |
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| Publication number | Publication date |
|---|---|
| CN104779386B (en) | 2017-02-22 |
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