GB2587173A - A preparation method of catalyst applied to a cathode material of a zinc-air battery - Google Patents

A preparation method of catalyst applied to a cathode material of a zinc-air battery Download PDF

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GB2587173A
GB2587173A GB2020653.8A GB202020653A GB2587173A GB 2587173 A GB2587173 A GB 2587173A GB 202020653 A GB202020653 A GB 202020653A GB 2587173 A GB2587173 A GB 2587173A
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Zhuang Wuyi
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    • 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
    • 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
    • B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
    • B01J23/8906—Iron and noble metals
    • 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
    • B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
    • B01J23/892—Nickel and noble metals
    • 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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/04—Mixing
    • 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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/08—Heat treatment
    • B01J37/082—Decomposition and pyrolysis
    • B01J37/088—Decomposition of a metal salt
    • 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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/16—Reducing
    • B01J37/18—Reducing with gases containing free hydrogen
    • 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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/34—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation
    • B01J37/341—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation making use of electric or magnetic fields, wave energy or particle radiation
    • B01J37/343—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation making use of electric or magnetic fields, wave energy or particle radiation of ultrasonic wave energy
    • 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
    • H01M4/8647—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites
    • H01M4/8652—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites as mixture
    • 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
    • H01M4/8842—Coating using a catalyst salt precursor in solution followed by evaporation and reduction of the precursor
    • 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
    • H01M4/92—Metals of platinum group
    • H01M4/921—Alloys or mixtures with metallic elements
    • 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
    • H01M4/92—Metals of platinum group
    • H01M4/925—Metals of platinum group supported on carriers, e.g. powder carriers
    • H01M4/926—Metals of platinum group supported on carriers, e.g. powder carriers on carbon or graphite
    • 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
    • H01M2004/8678—Inert electrodes with catalytic activity, e.g. for fuel cells characterised by the polarity
    • H01M2004/8689—Positive electrodes

Abstract

A preparation method of catalyst Pd-Ni-Fe/C applied to a cathode material of a zinc-air battery, wherein the preparation method comprises the steps of adding palladium salt, nickel salt and iron salt into a beaker, then adding deionized water and heating to 50-60°C. Carbon nanotubes, having been dried at a temperature of 60-80°C, are then added to the solution, and after being ultrasonically stirred for one hour, a magnetic stirring apparatus is applied to stir the mixture for 20-30 hours at a temperature of 80-95°C, to obtain a catalyst precursor after moisture is dried by distillation. The precursor is placed in a vacuum drying box for 12 hours and then, after being taken out, the precursor is ground before being placed in a tube furnace fluxed with hydrogen for 2-9 hours at a temperature of 300-450°C to reduce the precursor. Then the temperature is increased to 500-650°C for 3-8 hours, to obtain the catalyst Pd-Ni-Fe/C after being cooled. The catalyst Pd-Ni-Fe/C is stated to have a good stability and higher utilization rate of zinc.

Description

A PREPARATION METHOD OF CATALYST PD-NI-FEC APPLIED TO A CATHODE MATERIAL OF A ZINC-AIR BATTERY
TECHNICAL FIELD
[0001] The present invention relates to the field of catalyst preparation, in particular to a preparation method of catalyst Pd-Ni-FeC applied to a cathode material of a zinc-air battery.
BACKGROUND OF THE INVENTION
[0002] Fuel battery is an apparatus to transfer chemical energy into electricity energy; according to catalyst types, the fuel battery are divided into five types: alkalina fuel cell, proton exchange membrane fuel cell, phosphoric acid fuel cell, MCFC and Solid oxide fuel cell, wherein the proton exchange membrane fuel cell is the most simple one, which can produce electric energy by consuming hydrogen and oxygen; moreover, one important advantage for fuel cell technology is the high energy conversion efficiency, which can reach 60% on average, far higher than the 30% efficiency of automobile engine Furthermore, the fuel cell has a high specific energy and a high specific power.
[0003] Natural oxidant-dioxygen is of vital important for human existence. However, reduction of oxygen in water can not be controlled effectively to provide demanded energy; as Kinetics of Oxygen Reduction is a slow process that leads to a overpotential larger when in discharging, which limits a development of Polymer exchange membrane fuel cell and zinc-air battery; wherein Palladium and Platinum have optimal catalyst activity for oxygen reduction, as the Platinum belongs to precious metal with an expensive price, and the Palladium has a similar structure to Platinum, and the catalyst activity for oxygen reduction of Palladium catalyst ranks only second to Platinum with an advantage of not easy to poisoning; moreover, there are some disadvantages for Palladium catalyst, such as oxidation-reduction activity of the Palladium catalyst is lower than that of Platinum catalyst when in acid medium, bad stability.
BRIEF SUMMARY OF THE INVENTION
[0004] The technical problem to be solved by the invention is to provide a preparation method of electrocatalyst with low cost and high activity, so as to overcome low stability and catalyst activity of Palladium catalyst.
[0005] A more specific object of the invention is to provide a preparation method of catalyst Pd-Ni-FeC applied to a cathode material of a zinc-air battery, wherein the preparation method comprises the following steps: [0006] Si: Palladium salt, Nickel salt and Ferric salt are added into a beaker with a mass ratio, and then delonized water is added into for an ultrasonic stirring to dissolve sufficiently, and then mixture containing Palladium salt, Nickel salt, Ferric salt and the deionized water is heated to 50-60°C, and then Carbon nanotubes being dried in a temperature of 60-80°C is added, and after being ultrasonically stirred for 60 min, a magnetic stirring apparatus is applied to stir for 20-30 hours in a temperature of 80-95°C., and then precursor can be obtained after moisture is dried by distillation.
[0007] S2: the precursor obtained in Si is put into a vacuum drying box to be dried and evacuated for 12 hours, and then, after being, taken out, the precursor is ground to put into a tube furnace, and then the tube furnace is fluxed with hydrogen to reduce for 2-9 hours in a temperature of 300-450°C, and then the temperature rises to 500-650°C for a processing; with 3-8 hours, and then catalyst Pd-Ni-FeC is obtained after being cooled [0008] As an optimized technical proposal, therein a mass ratio of Palladium salt, Nickel salt and Ferric salt is 0.1-0.18:0.6-0.9:04-0.7.
[0009] As an optimized technical proposal, wherein a mass ratio of Carbon nanotubes and three kinds of metal salts is 0.3-0.7:1.
[0010] As an optimized technical proposal, wherein the Palladium salt is any one of palladium chloride, Palladium nitrate or Palladium acetate.
[0011] As an optimized technical proposal, wherein the Nickel salt one of Nickel chloride, Nickel nitrate, Nickel sulfate or Nickelous acetate.
[0012] As a more optimized technical proposal, wherein the salt is any one of Nickel chloride or Nickel nitrate.
100131 As an optimized technical proposal. tic s is any one of Ferric chloride, Ferric nitrate, Ferric acetate or Ferric sulfate.
[0014] As a more optimized technical proposal, wherein Ferric salt is any one of Ferric chloride or Ferric nitrate.
[0015] As an optimized technical proposal, wherein the Carbon nanotubes is any one of BP2000, Vxc721t, Vxc72, VUL P " BP3200, Vxc605 or Vxc305.
[0016] As an optimized technical proposal, wherein a reduction temperature in above step S2 is 300-400°C.
[0017] As an optimized technical proposal, wherein a reduction time in above step 82 is 2-6 hours.
[0018] As an optimiz -finical proposal, wherein a post-treatment temperature in above step S2 is 500-600°C.
[0019] As an optimized technicalproposal, wherein a post -treatment me in above ep 821 3-6 hours.
[0020] The benefits of the invention are as follows: (1)The palladium catalyst is adopted in this invention due to a lower price than Platinum catalyst and not easy to poisoning; alloy catalyst is formed by introducing metal nickel into the palladium catalyst, which changes d-band vacancies of palladium, Pd-Pd atomic separation and a coordination number of Pd, resulting in a center of the d-band shift of Pd and a changing in electric structure, thereby affecting an activation energy of oxygen reduction/hydrogen oxidation reaction and a stability of intermediate products, and improving a catalytic performance; (2) Fe is introduced into the catalyst Pd-Ni-Fe/C prepared in this invention as Fe is easily to form an oxide layer of Fe203 on surface of the catalyst, which is designed to prevent the catalyst particles from aggregation in post-processing, moreover, Fe is hard to enter Pd crystallattice, which make different catalyst have a discrepancy in particle diameter and alloy degree, thus improving the activity of the catalyst, (3) Nickel introduced in to the catalyst Pd-Ni-Fe/C prepared in this invention has a large stored amount in nature and a low price, thereby preparation cost for the catalyst Pd-Ni-Fe/C is relatively low.
BRIEF DESCRIPTION OF THE DRAWINGS
[0021] FIG. 1 is a XRD spectrum of the catalyst Pd-Ni-Fe/C prepared in embodiment 1 in this invention, [0022] FIG. 2 is a LSV curve graph of the catalyst Pd-Ni-Fe/C prepared in embodiment 1 in this invention to circle 10,000, [0023] FIG. 3 is an area chart for LSV curve graph and a power density curve of catalyst prepared in embodiment 1 and the comparative example 1 as cathode material of a zinc-air battery;
DETAILED DESCRIPTION OF THE INVENTION
[0024] The detailed description and process are provided for the implementation of the technical scheme of the invention according to the specific implementation, but the scope of protection of the invention is not limited in the following embodiments.
[0025] Embodiment 1 [0026] A preparation method of catalyst applied to a cathode material of a zinc-air battery, wherein detailed preparation method comprises: [0027] Si: Palladium chloride, Nickel chloride and Ferric chloride are added into a beaker with a mass ratio of 0.1:0.6:0.4, and then deionizeri water is added into for an ultrasonic stirring to dissolve sufficiently, and then a mixture I containing Palladium chloride, Nickel chloride, Ferric chloride and the deionized water is heated to 50°C, and then Carbon na.notubes BP2000 being dried in a temperature of 60°C is added, wherein the mass ratio of the Carbon otubes13P2000 and three kinds of metal salts is 0.311" and after being ultrasonically stirred for 60 min, and then a magnetic stirring apparatus is applied to stir for hours in a temperature of 80°C, arid then precursor can be obtained after moisture is dried by distillation.
[0028] S2: the precursor obtained in S1 is put into a vacuum drying box to be dried and evacuated for 12 hours, and then, after being taken out, the precursor is ground to put into a tube furnace, and then the tube furnace is fluxed with hydrogen to reduce for 2 hours in a temperature of 300°C, and then the temperature rises to 500°C for a processing with 3 hours, and then catalyst Pd-Ni-FeC is obtained after being cooled.
100291 Embodiment 2 [0030] A preparation method of catalyst applied to a cathode material of a zinc-air bat e wherein detailed preparation method comprises: [0031] S I: Palladium nitrate, Nickel nitrate and Ferric nitrate are added into a beaker with a mass ratio of 0.18:0.9:0.7, and then deionized water is added into for an ultrasonic stirring to dissolve sufficiently, and then a mixture 2 containing Palladium nitrate, Nickel nitrate, Ferric nitrate and the deionized water is heated to 60°C, and then Carbon nanotubes Wc72R being dried in a temperature of 80°C is added wherein the mass ratio of the Carbon nanotubes Vxc72R. and three kinds of metal salts is 0.7:1, and after being ultrasonically stirred for 60 and then a magnetic stirring apparatus is applied to stir for 30 hours in a temperature of 9'°C. and then precursor can be obtained after moisture is dried by distillation [0032] , precursor obtained in into a vacuum drying box to be dried and evacuated for [2 hours, and then, after being taken out, the precursor is ground to put into a tube furnace, and then the tube furnace is fluxed with hydrogen to reduce for 9 hours in a temperature of 450°C, and then the temperature rises to 650°C for a processing with 8 hours, and then catalyst Pd-Ni-FieC is obtained after being cooled.
[00 Embodiment 3 [0034] A preparat on method of catalyst applied to a cathode material of a zinc-air battery wherein detailed preparation method comprises: [0035] Si:Palladium acetate, Nickelous acetate and Ferric acetate are added into a beaker with a mass ratio of 0.12:0.7:0.5, and then deionized water is added into for an ultrasonic stirring to dissolve sufficiently, and then a mixture 5 containing Palladium acetate, Nickelous acetate, Ferric acetate and the deionized water is heated to 55°C, and then Carbon nanowbes Vxc72 being dried in a temperature of 70°C is added, wherein the mass ratio of the Carbon nanotubes Vxc72 and three kinds of metal salts is 0.5:1, and after being ultrasonically stirred for 60 min, and then a magnetic stirring apparatus is applied to stir for 25 hours in a temperature of 90°C, and then precursor can be obtained after moisture is dried by distillation.
[0036] Sz..: the precursor obtained in SI is put into a vacuum drying box to be dried and evacuated for 12 hours, and then, after being taken out, the precursor is ground to put into a Woe furnace, and then the tube furnace is fluxed with hydrogen to reduce for 5 hours in a temperature of 400°C, and then the temperature rises to 600°C for a processing -with 5 hours, and then catalyst Pd-Ni-FeC is obtained being cooled.
[0037] Embodiment 4 [0038] A preparation method of catalyst applied to a cathode material of a zinc-air battery, wherein detailed preparation method comprises: [0039] Sl: Palladium acetate, Nickel sulfate and Ferric sulfate are added into a beaker with a mass ratio of 0.16:0.8:0.6, and then deionized water is added into for an ultrasonic stirring to dissolve sufficiently, and then a mixture 7 containing Palladium acetate, Nickel sulfate, Ferric sulfate and the deionized water is heated to 60°C, and then Carbon nanotubes Vxc605 being dried in a temperature of 75°C is added, wherein the mass ratio of the Carbon nanotubes Vxc605 and three kinds of metal salts is 0.6:1, and after being ultrasonically stirred for 60 min, and then a magnetic stirring apparatus is applied to stir for 30 hours in a temperature of 80°C, and then precursor can be obtained after moisture is dried by distillation.
[0040] S2: the precursor obtained in St is put into a vacuum drying box to be dried and evacuated for 12 hours, and then, after being taken out, the precursor is ground to put into a tube furnace, and then the tube furnace is fluxed with hydrogen to reduce for 6 hours in a temperature of 450°C, and then the temperature 550°C for a processing with 3 hours, and then catalyst Pd-Ni-FeC is obtained being cooled.
[0041] Embodiment 5 [0042] A preparation method of catalyst applied to a cathode material of a zincair battery, wherein detailed preparation method comprises: [0043] Si: Palladium chloride, Nickel nitrate and Ferric acetate are added into a beaker with a mass ratio of 0.18:0.6:0.45, and then deionized water is added into for an ultrasonic stirring to dissolve sufficiently, and then a mixture 9 containing Palladium chloride, Nickel nitrate, Ferric acetate and the deionized water is heated to 60°C, and then Carbon nanotubes Vxc305 being dried in a temperature of 89°C. is added, wherein the mass ratio of the Carbon nanotubes Vxc305 and three kinds of metal salts is 0.55:1, and after being ultrasonically stirred for 60 min, and then a magnetic stirring apparatus is applied to stir for 30 hours in a temperature of 80°C, and then precursor can be obtained after moisture is dried by distillation.
[0044] S2: the precursor obtained in Si is put into a vacuum drying box to be dried and evacuated for 12 hours, and then, after being taken out, the precursor is ground to put into a tube furnace, and then the tube furnace is fluxed with hydrogen to reduce for 6 hours in a temperature of 400°C, and then the temperature rises to 550°C for a processing with 3 hours, and then catalyst Pd-Ni-FeC is obtained after being cooled.
[0045] Comparative exa [0046] Palladium chloride and Carbon nanotubes BP2000 are mixed together with a mass ratio of 1:0_3, and then deionized water is added into for an ultrasonic stirring to dissolve sufficiently,: and after being ultrasonically stirred for 60 min" and then a magnetic stirring apparatus is applied to stir for 20 hours in a temperature of 80°C, and then precursor can be obtained after moisture is dried by distillation, and then the precursor is put into a vacuum drying box to be dried and evacuated for 12 hours, and then, after being taken out, the precursor is ground to put into a tube furnace, and then the tube furnace is fluxed with hydrogen to reduce for 2 hours in a temperature of 300°C, and then the temperature rises to 500°C for a processing with 3 hours, and then catalyst Pd/C is obtained after being cooled.
[0047] Performance testing experiment [0048] XRD is tested with a small amount of the catalyst Pd-Ni-FeC prepared in embodiment 1; an electrochemical testing is performed on an electrochemical workstation and a rotating ring disk electrode testing apparatus by adopting -three-electrode system, and an auxiliary electrode is a carbon rod, and a reference electrode is a reversible hydrogen electrode, and a working electrode applies an ink electrode, and 0.1M HC104 or 0.1M KOH solution saturated with nitrogen are adopted as electrolyte solution; a rotation rate of a rotation disc is 1600rpm, and LSV curve of catalyst is obtained in a scanning speed of 5rriit s-1 between 0.2-1_0 potentials; after 10,000 circles performed, an activity of the catalyst Pd-.Ni-FeC decreases by 37.3% in 0.9V while activity of traditional catalyst Pd/C decreases by 78.1% in 0.9 V, and a stability of the catalyst Pd-Ni-FeC has been improved compared with the traditional catalyst 1Pd/C.
[0049] The performance testing of zinc-air battery is respectively implemented to the catalyst Pd-Ni-FeC prepared in embodiment 1 and the catalyst Pd/C prepared in comparative example referring to FIG. 3, the LSINT curve of the catalyst Pd/C has a fast decreasing speed while the LW curve of the catalyst Pd-Ni-FeC decreases more slow, and the catalyst I -Ni-FeC has a relative higher power density with a maximum value can reach 292mW cm-2, therefore, the catalyst Pd-Ni-FeC has a relative higher utilization rate of zinc.

Claims (10)

  1. CLAIMS1. A preparation method of catalyst Pd-Ni-FeC applied to a cathode material of a zinc-air battery, wherein the preparation method comprises the following steps: Si: Palladium salt, Nickel salt and Ferric salt are added into a beaker with a mass ratio, and then deionized water is added into for an ultrasonic stirring to dissolve sufficiently, and then mixture containing Palladium salt, Nickel salt, Ferric salt and the deionized water is heated to 50-60°C, and then Carbon nanotubes being dried in a temperature of 60-80°C is added, and after being ultrasonically stirred for 60 min, a magnetic stirring apparatus is applied to stir for 20-30 hours in a temperature of 80-95°C, and then precursor can be obtained after moisture is dried by distillation; S2: the precursor obtained in Si is put into a vacuum drying box to be dried and evacuated for 12 hours, and then, after being taken out, the precursor is ground to put into a tube furnace, and then the tube furnace is fluxed with hydrogen to reduce for 2-9 hours in a temperature of 300-450°C, and then the temperature rises to 500-650°C for a processing with 3-8 hours, and then catalyst Pd-Ni-FeC is obtained after being cooled.
  2. 2. The preparation method of catalyst Pd-Ni-FeC applied to a cathode material of a zinc-air battery defined in claim 1, wherein the Palladium salt is any one of palladium chloride, Palladium nitrate or Palladium acetate.
  3. 3 The preparation method of catalyst Pd-Ni-FeC applied to a cathode material of a zinc-air battery defined in claim 1, wherein the Nickel salt is any one of Nickel chloride, Nickel nitrate, Nickel sulfate or Nickel ous acetate.
  4. 4 The preparation method of catalyst Pd-Ni-FeC applied to a cathode material of a zinc-air battery defined in claim 1, wherein the Nickel salt is any one of Nickel chloride or Nickel nitrate.
  5. 5. The preparation method of catalyst Pd-Ni-FeC applied to a cathode material of a zinc-air battery defined in claim 1, wherein Ferric salt is any one of Ferric chloride, Ferric nitrate, Ferric acetate or Ferric sulfate.
  6. 6. The preparation method of catalyst Pd-Ni-FeC applied to a cathode material of a zinc-air battery defined in claim 1, wherein the Carbon nanotubes is any one of BP2000, Vxc72R, Vxc72, VUL P BP3200, Vxc605 or Vxc305.
  7. 7. The preparation method of catalyst Pd-Ni-FeC applied to a cathode material of a zinc-air battery defined in claim 1, wherein a mass ratio of Palladium salt, Nickel salt and Ferric salt is 0.1-0.18:0.6-0.9:0.4-0.7.
  8. 8. The preparation method of catalyst Pd-Ni-FeC applied to a cathode material of a zinc-air battery defined in claim 1, wherein a reduction temperature in above step S2 is 300- 400°C, and a reduction time in above step S2 is 2-6 hours.
  9. 9 The preparation method of catalyst Pd-Ni-FeC applied to a cathode material of a zinc-air battery defined in claim 1, wherein a post-treatment temperature in above step S2 is 500-600°C, and a post-treatment time in above step S2 is 3-6 hours.
  10. 10. The preparation method of catalyst Pd-Ni-FeC applied to a cathode material of a zinc-air battery defined in claim 1, wherein a mass ratio of the Carbon nanotubes and three kinds of metal salts is 0.3-0.7:1.
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JP2019137596A (en) * 2018-02-14 2019-08-22 学校法人神奈川大学 Composite material and method for producing the same, catalyst and metal air battery

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Publication number Priority date Publication date Assignee Title
CN101572316A (en) * 2009-06-06 2009-11-04 西北师范大学 Modified catalyst for low-temperature fuel cell and preparation method thereof
JP2019137596A (en) * 2018-02-14 2019-08-22 学校法人神奈川大学 Composite material and method for producing the same, catalyst and metal air battery

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