CN108470919A - Composite metal oxide catalyst for aluminum-air battery and preparation method and application thereof - Google Patents
Composite metal oxide catalyst for aluminum-air battery and preparation method and application thereof Download PDFInfo
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- CN108470919A CN108470919A CN201810264928.9A CN201810264928A CN108470919A CN 108470919 A CN108470919 A CN 108470919A CN 201810264928 A CN201810264928 A CN 201810264928A CN 108470919 A CN108470919 A CN 108470919A
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- 239000003054 catalyst Substances 0.000 title claims abstract description 49
- 239000002131 composite material Substances 0.000 title claims abstract description 29
- 229910044991 metal oxide Inorganic materials 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 150000004706 metal oxides Chemical class 0.000 title abstract 3
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims abstract description 29
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 18
- 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 claims abstract description 8
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 20
- 239000004202 carbamide Substances 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 229910002492 Ce(NO3)3·6H2O Inorganic materials 0.000 claims description 10
- 238000000137 annealing Methods 0.000 claims description 10
- 229910001868 water Inorganic materials 0.000 claims description 10
- 239000007864 aqueous solution Substances 0.000 claims description 8
- 239000000725 suspension Substances 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 5
- 230000035484 reaction time Effects 0.000 claims description 4
- 239000010406 cathode material Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 2
- 229910021641 deionized water Inorganic materials 0.000 claims description 2
- 239000012467 final product Substances 0.000 claims description 2
- 239000000047 product Substances 0.000 claims description 2
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 claims 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 9
- 239000001301 oxygen Substances 0.000 abstract description 9
- 229910052760 oxygen Inorganic materials 0.000 abstract description 9
- 238000006722 reduction reaction Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 3
- 230000002195 synergetic effect Effects 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 239000002086 nanomaterial Substances 0.000 abstract description 2
- 239000002105 nanoparticle Substances 0.000 abstract description 2
- 238000013329 compounding Methods 0.000 abstract 2
- 229910000420 cerium oxide Inorganic materials 0.000 description 14
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 14
- 239000004809 Teflon Substances 0.000 description 12
- 229920006362 Teflon® Polymers 0.000 description 12
- 239000003643 water by type Substances 0.000 description 6
- 239000004411 aluminium Substances 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910016978 MnOx Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Inorganic materials O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 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
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/90—Selection of catalytic material
- H01M4/9016—Oxides, hydroxides or oxygenated metallic salts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M12/00—Hybrid cells; Manufacture thereof
- H01M12/04—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type
- H01M12/06—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
-
- 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
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—Processes of manufacture
- H01M4/8825—Methods for deposition of the catalytic active composition
-
- 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
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/90—Selection of catalytic material
- H01M4/9075—Catalytic material supported on carriers, e.g. powder carriers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a composite metal oxide catalyst for an aluminum-air battery, a preparation method and application thereof, relates to the technical field of aluminum-air batteries, and aims to prepare CeO2And KB loaded Co3O4Co obtained by compounding catalyst3O4‑CeO2The preparation method of the/KB composite metal oxide catalyst is characterized by preparing the catalyst by a two-step low-temperature hydrothermal method. The invention prepares Co by a simple two-step low-temperature hydrothermal method3O4‑CeO2the/C composite material is prepared by constructing a multi-level composite nano material through Co3O4With CeO2The nano particles generate a synergistic effect in a compounding way, so that the oxygen reduction reaction activity of the material is obviously enhanced; nanoscale CeO2And Co3O4Coupled with a carbon carrier KB, the charge transfer resistance of the battery is reduced, the oxygen reduction performance of the catalyst is greatly improved, and the catalyst has a good synergistic effect, so that the electrochemical performance of the aluminum-air battery is improved.
Description
Technical field
The present invention relates to aluminium-air cell technical field more particularly to a kind of composition metal oxygen for aluminium-air cell
Compound catalyst and preparation method thereof, application.
Background technology
Ever-increasing energy demand is caused to efficient, low cost, the extensive research of environmentally friendly energy-storage system.Aqueous
Metal-air batteries, especially aluminium/air cell have been confirmed as next-generation energy density height, and at low cost, environmental pollution is small
Energy storage device.The theoretical energy density of aluminium/air cell is 8135Wh/kg, actual energy density up to 600-800Wh/kg,
It is high compared with lithium ion battery.In addition to this, since the earth's crust is abundant, aluminium is more less expensive than lithium.Its relatively low atomic weight
26.98 and thirdly valence state, gram equivalent 8.99, corresponding electrochemical equivalent is 2.98Ah/g, lithium 3.86, magnesium 2.20,
Zinc is 0.82.Using alloying aluminium, open-circuit voltage is up to 2.45V.Therefore, aluminium/air cell most induces one as electrical vehicular power
One of project gazed at.Air electrode has great importance in aqueous metal-air batteries.Current metal-air
One of battery bottleneck is the slow dynamics of oxygen reduction reaction.
Due to Ce4+/Ce3+The presence of redox couple, cerium oxide (CeO2) it has been used as the promotion of many catalyst systems
Agent.This unique property becomes for the good cocatalyst in metal-air battery.With commercial MnO2It compares,
MnOx/CeO2Nanometer rods have higher specific capacity, high rate performance and stable circulation in the oxygen electrode for lithium-air battery
Property.Due to the introducing of Ce-O, MnO can be effectively improvedxThe activation capacity of upper molecular oxygen, has been well demonstrated that CeO2
It plays a key effect in adsorption of oxygen, to control the oxygen concentration of catalyst surface.We use the design of two step hydrothermal reaction at low temperature
Co3O4-CeO2/ KB systems have higher catalytic performance, this Co3O4-CeO2/ KB catalyst is used as aluminium-air for the first time
The cathode material of battery has very high discharge platform, can be applied to high power discharge.
Invention content
Technical problems based on background technology, the present invention propose a kind of composition metal for aluminium-air cell
Oxide catalyst and preparation method thereof, application, using the catalyst as aluminium-air cell effective catalyst, CeO2With
Co3O4It is coupled, generates better synergy, to improve the chemical property of aluminium-air cell.
A kind of O composite metallic oxide catalyst for aluminium-air cell proposed by the present invention is by CeO2It is negative with KB
The Co of load3O4Catalyst carries out compound obtained Co3O4-CeO2/ KB O composite metallic oxide catalysts.
The invention also provides the preparation method of the above-mentioned O composite metallic oxide catalyst for aluminium-air cell,
It is characterized in that, includes the following steps：
1) CeO is prepared2/ KB presomas
By Ce (NO3)3·6H2O, urea, C6H8O7·H2O is dissolved in deionized water, and KB is then added, and is ultrasonically treated,
Then it is transferred quickly in autoclave, hydro-thermal reaction is carried out at 120-180 DEG C, filter, it is dry, obtain CeO2/KB；
2) Co is prepared3O4-CeO2/ KB catalyst
By CeO2/ KB is added to containing Co (CH3COO)2·4H2In the mixed aqueous solution of O and urea, stirring, by suspension
It is transferred quickly in autoclave, hydro-thermal reaction is carried out at 130-150 DEG C, filter, it is dry, then carry out at annealing in air
Reason to get.
Preferably, Ce (NO3)3·6H2O、C6H8O7·H2O、KB、Co(CH3COO)2·4H2O, the mass ratio of urea is
0.1-1：0.2-4.5：1-4：0.1-1：The mass ratio of 2-11, wherein step 1) and urea in step 2) is 2-7：1-4.
Preferably, in the step 1), the hydro-thermal reaction time 12-24h.
Preferably, in the step 1), ultrasonic time 25-35min.
Preferably, in the step 2), the hydro-thermal reaction time 11-14h.
Preferably, in the step 2), annealing operation is as follows：Product after drying is put into Muffle furnace in 295-
With 5 DEG C of min in 310 DEG C of air-1Anneal 1.5-2.5h in air.
Preferably, the drying temperature is 75-85 DEG C, drying time 10-15h.
The invention also provides the above-mentioned O composite metallic oxide catalysts for aluminium-air cell in aluminium-air cell
Application in cathode material.
Compared with prior art, the present invention has advantage following prominent：
1) present invention is prepared for Co3O4-CeO2/ C composite constructs multistage composite nano material, passes through Co3O4With CeO2
Nano-particles reinforcement generates synergistic effect so that the oxygen reduction reaction activity of material significantly increases, nanoscale CeO2And Co3O4With
Carbon carrier KB couplings, reduce the charge mass transfer resistance of battery, substantially increase the hydrogen reduction performance of catalyst, have good
Synergy, to improve the chemical property of aluminium-air cell.
2) Co prepared by the present invention3O4-CeO2/ KB catalyst is shown than 20wt%Pt/C more in alkaline electrolyte
High catalytic activity and better stability, in addition, Co3O4-CeO2The MnOx- that the half wave potential of/KB is reported than in the prior art
CeO2/ KB high 20mV, when as aluminium-air cell cathod catalyst, Co3O4-CeO2/ KB has than CeO2/ KB and Co3O4/
The higher discharge voltage plateaus of KB.
3) present invention is prepared for Co by two easy step hydrothermal reaction at low temperature3O4-CeO2/ C composite, preparation process letter
Just, easily operated, raw material is cheap, provides a kind of inexpensive, high catalytic activity aluminium-air cell oxygen reduction catalyst.
Specific implementation mode
In the following, technical scheme of the present invention is described in detail by specific embodiment.
Embodiment 1
The present invention proposes a kind of preparation method of the O composite metallic oxide catalyst for aluminium-air cell, including
Following steps：
1) CeO is prepared2/ KB presomas
By 0.1g Ce (NO3)3·6H2O, 1g urea and 0.2g C6H8O7·H2O is dissolved in 80mL deionized waters, then
1g KB are added, is ultrasonically treated 30min, is then transferred quickly in the autoclave of 100mL teflon linings, is carried out at 140 DEG C
12h is reacted, filtering, dry 12h, obtains CeO at 80 DEG C2/KB；
2) Co is prepared3O4-CeO2/ KB catalyst
By CeO2/ KB is added to containing 0.1g Co (CH3COO)2·4H2In the mixed aqueous solution of O and 1g urea, continuously stir
10min is mixed, suspension is transferred quickly in the autoclave of 100mL teflon linings, hydro-thermal reaction 12h, mistake at 140 DEG C
Filter, dry 12h, is then placed in Muffle furnace in 300 DEG C of air with 5 DEG C of min at 80 DEG C-1It makes annealing treatment in air
2h to get.
Embodiment 2
The present invention proposes a kind of preparation method of the O composite metallic oxide catalyst for aluminium-air cell, including
Following steps：
1) CeO is prepared2/ KB presomas
By 0.15g Ce (NO3)3·6H2O, 9g urea and 0.75g C6H8O7·H2O is dissolved in 100mL deionized waters,
Then 1.5g KB are added, is ultrasonically treated 30min, is then transferred quickly in the autoclave of 100mL teflon linings, at 160 DEG C
Under carry out reaction 15h, filter, dry 12h, obtains CeO at 80 DEG C2/KB；
2) Co is prepared3O4-CeO2/ KB catalyst
By CeO2/ KB is added to containing 0.2g Co (CH3COO)2·4H2In the mixed aqueous solution of O and 1.8g urea, continuously
10min is stirred, suspension is transferred quickly in the autoclave of 100mL teflon linings, hydro-thermal reaction 12h, mistake at 140 DEG C
Filter, dry 8h, is then placed in Muffle furnace in 300 DEG C of air with 5 DEG C of min at 180 DEG C-1It makes annealing treatment in air
2h to get.
Embodiment 3
The present invention proposes a kind of preparation method of the O composite metallic oxide catalyst for aluminium-air cell, including
Following steps：
1) CeO is prepared2/ KB presomas
By 0.35g Ce (NO3)3·6H2O, 7g urea and 0.35g C6H8O7·H2O is dissolved in 50mL deionized waters, so
1.75g KB are added afterwards, is ultrasonically treated 25min, is then transferred quickly in the autoclave of 100mL teflon linings, at 120 DEG C
Under carry out reaction 13h, filter, dry 10h, obtains CeO at 75 DEG C2/KB；
2) Co is prepared3O4-CeO2/ KB catalyst
By CeO2/ KB is added to containing 0.2g Co (CH3COO)2·4H2In the mixed aqueous solution of O and 1g urea, continuously stir
10min is mixed, suspension is transferred quickly in the autoclave of 100mL teflon linings, hydro-thermal reaction 11h, mistake at 130 DEG C
Filter, dry 10h, is then placed in Muffle furnace in 295 DEG C of air with 5 DEG C of min at 75 DEG C-1It makes annealing treatment in air
1.5h to get.
Embodiment 4
The present invention proposes a kind of preparation method of the O composite metallic oxide catalyst for aluminium-air cell, including
Following steps：
1) CeO is prepared2/ KB presomas
By 0.5g Ce (NO3)3·6H2O, 0.5g urea and 4.5g C6H8O7·H2O is dissolved in 100mL deionized waters,
Then 3g KB are added, is ultrasonically treated 35min, is then transferred quickly in the autoclave of 100mL teflon linings, at 180 DEG C
It is reacted for 24 hours, filtering, dry 15h, obtains CeO at 85 DEG C2/KB；
2) Co is prepared3O4-CeO2/ KB catalyst
By CeO2/ KB is added to containing 1g Co (CH3COO)2·4H2In the mixed aqueous solution of O and 1g urea, continuously stir
Suspension is transferred quickly in the autoclave of 100mL teflon linings by 10min, the hydro-thermal reaction 14h at 150 DEG C, filtering,
Dry 15h, is then placed in Muffle furnace in 310 DEG C of air with 5 DEG C of min at 85 DEG C-12.5h is made annealing treatment in air,
To obtain the final product.
Embodiment 5
The present invention proposes a kind of preparation method of the O composite metallic oxide catalyst for aluminium-air cell, including
Following steps：
1) CeO is prepared2/ KB presomas
By 0.4g Ce (NO3)3·6H2O, 0.8g urea and 0.5g C6H8O7·H2O is dissolved in 80mL deionized waters, so
0.6g KB are added afterwards, is ultrasonically treated 30min, is then transferred quickly in the autoclave of 100mL teflon linings, at 150 DEG C
Reaction 17h is carried out, is filtered, dry 12h, obtains CeO at 85 DEG C2/KB；
2) Co is prepared3O4-CeO2/ KB catalyst
By CeO2/ KB is added to containing 0.7g Co (CH3COO)2·4H2In the mixed aqueous solution of O and 1.8g urea, continuously
10min is stirred, suspension is transferred quickly in the autoclave of 100mL teflon linings, hydro-thermal reaction 12h, mistake at 140 DEG C
Filter, dry 12h, is then placed in Muffle furnace in 300 DEG C of air with 5 DEG C of min at 85 DEG C-1It makes annealing treatment in air
1.5h to get.
Embodiment 6
The present invention proposes a kind of preparation method of the O composite metallic oxide catalyst for aluminium-air cell, including
Following steps：
1) CeO is prepared2/ KB presomas
By 0.8g Ce (NO3)3·6H2O, 3g urea and 3.7g C6H8O7·H2O is dissolved in 100mL deionized waters, so
Afterwards be added 4g KB, be ultrasonically treated 35min, be then transferred quickly in the autoclave of 100mL teflon linings, at 170 DEG C into
Row reaction 20h, filtering, dry 13h, obtains CeO at 80 DEG C2/KB；
2) Co is prepared3O4-CeO2/ KB catalyst
By CeO2/ KB is added to containing 0.8g Co (CH3COO)2·4H2In the mixed aqueous solution of O and 4.1g urea, continuously
10min is stirred, suspension is transferred quickly in the autoclave of 100mL teflon linings, hydro-thermal reaction 13h, mistake at 145 DEG C
Filter, dry 13h, is then placed in Muffle furnace in 305 DEG C of air with 5 DEG C of min at 80 DEG C-1It makes annealing treatment in air
2h to get.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of O composite metallic oxide catalyst for aluminium-air cell, which is characterized in that be by CeO2With KB loads
Co3O4Catalyst carries out compound obtained Co3O4-CeO2/ KB O composite metallic oxide catalysts.
2. a kind of preparation method based on the O composite metallic oxide catalyst described in claim 1 for aluminium-air cell,
It is characterized by comprising the following steps：
1) CeO is prepared2/ KB presomas
By Ce (NO3)3·6H2O, urea, C6H8O7·H2O is dissolved in deionized water, and KB is then added, and is ultrasonically treated, then fast
Speed is transferred in autoclave, and hydro-thermal reaction is carried out at 120-180 DEG C, is filtered, dry, obtains CeO2/KB；
2) Co is prepared3O4-CeO2/ KB catalyst
By CeO2/ KB is added to containing Co (CH3COO)2·4H2In the mixed aqueous solution of O and urea, stirring is rapid by suspension
It is transferred in autoclave, hydro-thermal reaction is carried out at 130-150 DEG C, filter, it is dry, then made annealing treatment in air,
To obtain the final product.
3. the preparation method of the O composite metallic oxide catalyst according to claim 2 for aluminium-air cell, special
Sign is, Ce (NO3)3·6H2O、C6H8O7·H2O、KB、Co(CH3COO)2·4H2O, the mass ratio of urea is 0.1-1：0.2-
4.5：1-4：0.1-1：The mass ratio of 2-11, wherein step 1) and urea in step 2) is 2-7：1-4.
4. the preparation method of the O composite metallic oxide catalyst according to claim 2 for aluminium-air cell, special
Sign is, in the step 1), the hydro-thermal reaction time 12-24h.
5. the preparation method of the O composite metallic oxide catalyst for aluminium-air cell described in 2 is gone according to right, it is special
Sign is, in the step 1), ultrasonic time 25-35min.
6. the preparation method of the O composite metallic oxide catalyst for aluminium-air cell described in 2 is gone according to right, it is special
Sign is, in the step 2), the hydro-thermal reaction time 11-14h.
7. the preparation method of the O composite metallic oxide catalyst for aluminium-air cell described in 2 is gone according to right, it is special
Sign is, in the step 2), annealing operation is as follows：Product after drying is put into sky of the Muffle furnace at 295-310 DEG C
With 5 DEG C of min in gas-1Anneal 1.5-2.5h in air.
8. the preparation method of the O composite metallic oxide catalyst for aluminium-air cell described in 2 is gone according to right, it is special
Sign is that the drying temperature is 75-85 DEG C, drying time 10-15h.
9. it is a kind of based on any O composite metallic oxide catalysts for aluminium-air cell of claim 1-8 in aluminium-
Application in air battery cathode material.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110299532A (en) * | 2019-06-21 | 2019-10-01 | 天津大学 | A kind of preparation method of water system aluminum-air battery device |
| CN110911671A (en) * | 2019-12-09 | 2020-03-24 | 王新跃 | Aluminum air battery aluminum pole plate material, aluminum air battery aluminum pole plate and preparation method |
| CN112382769A (en) * | 2020-11-04 | 2021-02-19 | 江苏科技大学 | High-performance metal-air battery anode catalyst and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993159A (en) * | 2015-06-09 | 2015-10-21 | 东华大学 | Dual-function catalyst and preparation thereof and application in metal-air battery |
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