CN110508314A - A kind of Co2N-Ni3N loads graphene oxide-carbon cloth and analyses its preparation method of oxygen material - Google Patents

A kind of Co2N-Ni3N loads graphene oxide-carbon cloth and analyses its preparation method of oxygen material Download PDF

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CN110508314A
CN110508314A CN201910839931.3A CN201910839931A CN110508314A CN 110508314 A CN110508314 A CN 110508314A CN 201910839931 A CN201910839931 A CN 201910839931A CN 110508314 A CN110508314 A CN 110508314A
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graphene oxide
carbon cloth
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parts
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周丽丽
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Wenzhou Tuwu Information Technology Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/24Nitrogen compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/30Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
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    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/50Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
    • B01J35/58Fabrics or filaments
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    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00Electrolytic production of inorganic compounds or non-metals
    • C25B1/01Products
    • C25B1/02Hydrogen or oxygen
    • C25B1/04Hydrogen or oxygen by electrolysis of water
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
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    • C25B11/051Electrodes formed of electrocatalysts on a substrate or carrier
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
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    • C25B11/04Electrodes; Manufacture thereof not otherwise provided for characterised by the material
    • C25B11/051Electrodes formed of electrocatalysts on a substrate or carrier
    • C25B11/073Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material
    • C25B11/091Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of at least one catalytic element and at least one catalytic compound; consisting of two or more catalytic elements or catalytic compounds
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/36Hydrogen production from non-carbon containing sources, e.g. by water electrolysis

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Abstract

The present invention relates to nitride electrodes to analyse oxygen field of material technology, and discloses a kind of Co2N‑Ni3N loads graphene oxide-carbon cloth and analyses its preparation method of oxygen material, including formula as below raw material: cobalt source, nickel source, graphene oxide, carbon cloth, hexa, concentrated ammonia liquor.A kind of Co2N‑Ni3N loads graphene oxide-carbon cloth and analyses its preparation method of oxygen material, by using nitride Co2N and Ni3The main component of N catalyst, electrolysis strength are above traditional transition metal nitride, and the huge surface porosity factor of graphene oxide, and simultaneous oxidation graphene has amphipathic, make Co2N‑Ni3N uniform load improves electro catalytic activity and is electrolysed the efficiency of elutriation oxygen, make Co by ultrasonic disperse and hydro-thermal evaporation to electrode material effect electrochemical catalysis area between the surface and stratiform of graphene oxide, is increased2N‑Ni3N load graphene oxide is uniformly attached to the surface of carbon cloth, and not needing polymer binder makes catalyst is viscous to bond on electrode.

Description

A kind of Co2N-Ni3N loads graphene oxide-carbon cloth and analyses its preparation method of oxygen material
Technical field
The present invention relates to nitride electrode analysis oxygen field of material technology, specially a kind of Co2N-Ni3N loads graphene oxide- Carbon cloth analyses its preparation method of oxygen material.
Background technique
With becoming increasingly conspicuous for energy crisis and problem of environmental pollution, solar energy, wind energy, underground heat are continually developed in countries in the world The various novel green renewable energy such as energy, Hydrogen Energy, Hydrogen Energy have many advantages, such as that environmentally protective, sustainable regeneration, energy density are high, The extensive concern of people is received, water electrolysis hydrogen production is one of the effective technology for developing Hydrogen Energy, has technical level mature, automatic The advantages that change degree is high, environment friendly and pollution-free, electrolysis water is made of two half-reactions, i.e. oxygen evolution reaction and evolving hydrogen reaction, they are logical Need two kinds of catalyst often to reduce and generate H2And O2Required overpotential, therefore catalyst is water electrolysis hydrogen production process One of the factor of middle most critical, wherein oxygen evolution reaction is related to the complex reactions such as proton couple electronic transfer, to limit electrolysis The process of water.
The catalyst that current oxygen evolution reaction uses is mostly the noble metals such as platinum, ruthenium, but its reserves is rare, price is high Expensive, preparation difficulty, and the oxides such as transition metal oxide class catalyst such as nickel, cobalt, iron, need to be consolidated with polymer binder Determine onto electrically-conductive backing plate to carry out electrochemical measurement, and the use of high molecular polymer adhesive will increase the series connection resistance of cell reaction It is anti-, the active site of catalyst has been wrapped, catalytic activity is caused to reduce, oxygen evolution reaction can not be effectively reduced and generate O2Required Overpotential, and high molecular polymer adhesive can be decomposed gradually in electrolytic process, cause catalyst that can not be fixed to conduction Substrate and be lost in electrolyte, reduce analysis Oxygen Electrode Material practicability and durability.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of Co2N-Ni3N loads graphene oxide-carbon cloth analysis Its preparation method of oxygen material, is attached to transition metal nitride on anode material without polymer binder, both solves macromolecule The use of polymer binder can wrap the active site of catalyst, increase the series impedance of cell reaction, cause to urge Change the problem of activity reduces, while solving high molecular polymer adhesive again can gradually decompose in electrolytic process, causes to urge Agent can not be fixed to electrically-conductive backing plate and the problems in be lost to electrolyte.
(2) technical solution
To achieve the above object, the invention provides the following technical scheme: a kind of Co2N-Ni3N loads graphene oxide-carbon fiber Wei Bu analyses its preparation method of oxygen material, the formula material including following parts by weight proportion: 10-12 parts of cobalt sources, 12-14 parts of nickel sources, 8- 12 parts of graphene oxides, 20-35 parts of carbon cloths, 15-17 parts of hexas, 20-25 parts of concentrated ammonia liquors, preparation method include and Following experimental drug: dust technology, ethyl alcohol, distilled water, dilute hydrochloric acid.
Preferably, the cobalt source is any one of cobalt chloride hexahydrate, Cobalt monosulfate heptahydrate or cabaltous nitrate hexahydrate, Middle cobalt chloride hexahydrate CoCl2·6H2CoCl in O2Mass fraction is 51.5-52.6%, Cobalt monosulfate heptahydrate CoSO4·7H2In O CoSO4Mass fraction is 50.8-52.4%, cabaltous nitrate hexahydrate Co (NO3)2·6H2Co (NO in O3)2Mass fraction is 60.1- 61.3%, preferably cobalt chloride hexahydrate CoCl2·6H2O。
Preferably, the nickel source is six hydration Nickel Chlorides or Nickelous nitrate hexahydrate, Nickel dichloride hexahydrate NiCl2·6H2O Middle NiCl2Mass fraction is 51.8-53.1%, Nickelous nitrate hexahydrate Ni (NO3)2·6H2Ni (NO in O3)2Mass fraction is 58.2-60.5%, preferably NiCl2·6H2O。
Preferably, the graphene oxide specification is 1-3 layers, diameter 0.5-2.5um, with a thickness of 0.5-1.5nm.
Preferably, the carbon cloth is graphitized carbon fibre cloth, phosphorus content >=95%.
Preferably, the hexa chemical formula is C6H12N4, mass fraction >=93.5.
Preferably, HNO in the dust technology3Mass fraction is 5-8%.
Preferably, ethyl alcohol mass fraction >=99.5%.
Preferably, the mass fraction of the concentrated ammonia liquor is 23.2-27.6%.
Preferably, the dilute hydrochloric acid substance withdrawl syndrome is 2.3-3.1mol/L, mass fraction 8-11%.
Preferably, the Co2N-Ni3N loads graphene oxide-carbon cloth and analyses oxygen material, and preparation method includes following step It is rapid:
(1) preparation Co-Ni compound loads graphene oxide dispersion: 400mL distilled water being added into 1000mL beaker With 250mL ethyl alcohol, 10-12 parts of cobalt sources, 12-14 parts of nickel sources and 15-17 parts of hexas, after dissolution is sufficiently stirred, then plus Enter 8-12 parts of graphene oxides to stir evenly, material in beaker is transferred into high-pressure hydrothermal reaction kettle, heated at constant temperature is placed in It is heated to 130-135 DEG C of reaction 7-10h in case, so that cobalt source and nickel source is uniformly attached to the surface of graphene oxide, reaction terminates Reaction kettle is cooled to room temperature afterwards, obtains Co-Ni compound load graphene oxide dispersion.
(2) it prepares the graphene oxide-loaded carbon cloth of Co-Ni: graphitized carbon fibre is arranged in 200mL mass fraction Impurity is removed for washing in 5-8% solution, dilute nitric acid solution is filtered, successively uses 500-800mL dehydrated alcohol and 3000- 4000mL distills water washing carbon cloth, and carbon cloth is placed in baking oven and is heated to 90-95 DEG C, dry moisture 5-8h, on It states the load of Co-Ni compound made from step (1) graphene oxide dispersion to be put into 1000mL beaker, then adds into beaker Enter 20-35 parts of processed graphitized carbon fibre cloth, then place the beaker in ultrasonic dispersers, is heated to 60-65 DEG C, ultrasound Power is 800W, supersonic frequency 25KHz, is ultrasonically treated 12-18h, keeps Co-Ni graphene oxide and carbon cloth fully dispersed Uniformly, it then places the beaker and is heated to 80-85 DEG C in baking oven, slow evaporation solution, dry 8-12h makes Co-Ni graphene oxide It is uniformly attached to the surface of graphitized carbon fibre cloth, obtains the graphene oxide-loaded carbon cloth of Co-Ni.
(3) Co is prepared2N-Ni3N loads graphene oxide-carbon cloth and analyses oxygen material: by Co- made from above-mentioned steps (2) The graphene oxide-loaded carbon cloth of Ni and 20-25 parts of concentrated ammonia liquors are sequentially placed into crucible and are placed in nitrogen protection furnace, then by case Formula atmosphere furnace is passed through N2It is completely exhausted out air, is then 5 DEG C/min by box atmosphere furnace heating rate, rises to 380-400 DEG C instead 3-4h is answered, is after reaction cooled to room temperature material, and the solid mixture in crucible is passed sequentially through into 200-400mL substance Amount concentration be 2.3-3.1mol/L dilute hydrochloric acid and 4000-5000mL distill water washing and remove the complete material of unreacted and anti- By-product is answered, and the solids of washes clean is placed in baking oven and is heated to 80-85 DEG C of dry 6-9h, obtains Co2N-Ni3N load Graphene oxide-carbon cloth analyses oxygen material.
(3) beneficial technical effect
Compared with prior art, the present invention has following beneficial technical effect:
1, a kind of Co2N-Ni3N loads graphene oxide-carbon cloth and analyses its preparation method of oxygen material, by using nitride Co2N and Ni3The main component of N catalyst, in electrolytic process, the more a height of 5mA/cm of current density2When, Co2N-Ni3N compound Very low overpotential, only 276-282mV are only needed, electrolysis output voltage is 363-368mV, is above traditional transition metal nitrogen The electrolysis strength of compound, and the huge surface porosity factor of graphene oxide, simultaneous oxidation graphene have it is amphipathic, make Co2N-Ni3N uniform load increases Co between the surface and stratiform of graphene oxide2N-Ni3The contact surface of N and electrolyte Product, to increase electrode material effect electrochemical catalysis area, improve electro catalytic activity and be electrolysed the efficiency of elutriation oxygen.
2, a kind of Co2N-Ni3N loads graphene oxide-carbon cloth and analyses its preparation method of oxygen material, is graphitized by being added Carbon cloth makes Co as electrode, by ultrasonic disperse and hydro-thermal evaporation2N-Ni3N load graphene oxide is uniformly attached to carbon The surface of fiber cloth, not needing polymer binder makes catalyst is viscous to bond on electrode, solves most of analysis oxygen electrode at present Material needs to have wrapped the active site of catalyst using high molecular polymer adhesive, increases the series connection of cell reaction Impedance, the problem of causing catalytic activity to reduce, while solving high molecular polymer adhesive again can be gradually in electrolytic process The problems in it decomposes, cause catalyst that can not be fixed to electrically-conductive backing plate and be lost to electrolyte, improve analysis Oxygen Electrode Material Practicability and durability.
Specific embodiment
To achieve the above object, the invention provides the following technical scheme: a kind of Co2N-Ni3N loads graphene oxide-carbon fiber Wei Bu analyses its preparation method of oxygen material, the formula material including following parts by weight proportion: 10-12 parts of cobalt sources, 12-14 parts of nickel sources, 8- 12 parts of graphene oxides, 20-35 parts of carbon cloths, 15-17 parts of hexas, 20-25 parts of concentrated ammonia liquors, preparation method include and Following experimental drug: dust technology, ethyl alcohol, distilled water, dilute hydrochloric acid, cobalt source are cobalt chloride hexahydrate, Cobalt monosulfate heptahydrate or six water Any one of cobalt nitrate is closed, wherein cobalt chloride hexahydrate CoCl2·6H2CoCl in O2Mass fraction is 51.5-52.6%, seven Cobalt sulfate hydrate CoSO4·7H2CoSO in O4Mass fraction is 50.8-52.4%, cabaltous nitrate hexahydrate Co (NO3)2·6H2In O Co(NO3)2Mass fraction is 60.1-61.3%, preferably cobalt chloride hexahydrate CoCl2·6H2O, nickel source are six hydration dichlorides Nickel or Nickelous nitrate hexahydrate, Nickel dichloride hexahydrate NiCl2·6H2NiCl in O2Mass fraction is 51.8-53.1%, six hydration nitre Sour nickel (NO3)2·6H2Ni (NO in O3)2Mass fraction is 58.2-60.5%, preferably NiCl2·6H2O, graphene oxide Specification is 1-3 layer, diameter 0.5-2.5um, and with a thickness of 0.5-1.5nm, carbon cloth is graphitized carbon fibre cloth, phosphorus content >= 95%, hexa chemical formula is C6H12N4, mass fraction >=93.5, HNO in dust technology3Mass fraction is 5-8%, second Alcohol mass fraction >=99.5%, the mass fraction of concentrated ammonia liquor are 23.2-27.6%, and dilute hydrochloric acid substance withdrawl syndrome is 2.3- 3.1mol/L, mass fraction 8-11%, Co2N-Ni3N loads graphene oxide-carbon cloth and analyses oxygen material, preparation method packet Include following steps:
(1) preparation Co-Ni compound loads graphene oxide dispersion: 400mL distilled water being added into 1000mL beaker With 250mL ethyl alcohol, 10-12 parts of cobalt sources, 12-14 parts of nickel sources and 15-17 parts of hexas, after dissolution is sufficiently stirred, then plus Enter 8-12 parts of graphene oxides to stir evenly, material in beaker is transferred into high-pressure hydrothermal reaction kettle, heated at constant temperature is placed in It is heated to 130-135 DEG C of reaction 7-10h in case, so that cobalt source and nickel source is uniformly attached to the surface of graphene oxide, reaction terminates Reaction kettle is cooled to room temperature afterwards, obtains Co-Ni compound load graphene oxide dispersion.
(2) it prepares the graphene oxide-loaded carbon cloth of Co-Ni: graphitized carbon fibre is arranged in 200mL mass fraction Impurity is removed for washing in 5-8% solution, dilute nitric acid solution is filtered, successively uses 500-800mL dehydrated alcohol and 3000- 4000mL distills water washing carbon cloth, and carbon cloth is placed in baking oven and is heated to 90-95 DEG C, dry moisture 5-8h, on It states the load of Co-Ni compound made from step (1) graphene oxide dispersion to be put into 1000mL beaker, then adds into beaker Enter 20-35 parts of processed graphitized carbon fibre cloth, then place the beaker in ultrasonic dispersers, is heated to 60-65 DEG C, ultrasound Power is 800W, supersonic frequency 25KHz, is ultrasonically treated 12-18h, keeps Co-Ni graphene oxide and carbon cloth fully dispersed Uniformly, it then places the beaker and is heated to 80-85 DEG C in baking oven, slow evaporation solution, dry 8-12h makes Co-Ni graphene oxide It is uniformly attached to the surface of graphitized carbon fibre cloth, obtains the graphene oxide-loaded carbon cloth of Co-Ni.
(3) Co is prepared2N-Ni3N loads graphene oxide-carbon cloth and analyses oxygen material: by Co- made from above-mentioned steps (2) The graphene oxide-loaded carbon cloth of Ni and 20-25 parts of concentrated ammonia liquors are sequentially placed into crucible and are placed in nitrogen protection furnace, then by case Formula atmosphere furnace is passed through N2It is completely exhausted out air, is then 5 DEG C/min by box atmosphere furnace heating rate, rises to 380-400 DEG C instead 3-4h is answered, is after reaction cooled to room temperature material, and the solid mixture in crucible is passed sequentially through into 200-400mL substance Amount concentration be 2.3-3.1mol/L dilute hydrochloric acid and 4000-5000mL distill water washing and remove the complete material of unreacted and anti- By-product is answered, and the solids of washes clean is placed in baking oven and is heated to 80-85 DEG C of dry 6-9h, obtains Co2N-Ni3N load Graphene oxide-carbon cloth analyses oxygen material.
Embodiment 1:
(1) preparation Co-Ni compound loads graphene oxide dispersion: 400mL distilled water being added into 1000mL beaker With 250mL ethyl alcohol, 10 parts of cobalt sources, 12 parts of nickel sources and 15 parts of hexas after dissolution is sufficiently stirred, add 8 parts of oxidations Graphene stirs evenly, and material in beaker is transferred into high-pressure hydrothermal reaction kettle, is placed in heated at constant temperature case and is heated to 130 DEG C reaction 7h, so that cobalt source and nickel source is uniformly attached to the surface of graphene oxide, be after reaction cooled to room temperature reaction kettle, Obtain Co-Ni compound load graphene oxide dispersion component 1.
(2) it prepares the graphene oxide-loaded carbon cloth of Co-Ni: graphitized carbon fibre is arranged in 200mL mass fraction Impurity is removed for washing in 5% solution, filters dilute nitric acid solution, successively using 500mL dehydrated alcohol and 3000mL distillation washing Carbon cloth is washed, and carbon cloth is placed in baking oven and is heated to 90 DEG C, dry moisture 5h, Co-Ni made from above-mentioned steps (1) Compound load graphene oxide dispersion component 1 is put into 1000mL beaker, then 35 parts of addition is processed into beaker Graphitized carbon fibre cloth, then places the beaker in ultrasonic dispersers, is heated to 60 DEG C, ultrasonic power 800W, supersonic frequency For 25KHz, it is ultrasonically treated 12h, keeps Co-Ni graphene oxide and carbon cloth fully dispersed uniformly, then place the beaker baking oven In be heated to 80 DEG C, slow evaporation solution, dry 8h makes Co-Ni graphene oxide uniformly be attached to the table of graphitized carbon fibre cloth Face obtains the graphene oxide-loaded carbon cloth component 1 of Co-Ni.
(3) Co is prepared2N-Ni3N loads graphene oxide-carbon cloth and analyses oxygen material: by Co- made from above-mentioned steps (2) The graphene oxide-loaded carbon cloth component 1 and 20 part concentrated ammonia liquor of Ni, which is sequentially placed into crucible, to be placed in nitrogen protection furnace, then will Box atmosphere furnace is passed through N2It is completely exhausted out air, is then 5 DEG C/min by box atmosphere furnace heating rate, rises to 380 DEG C of reactions Material is cooled to room temperature by 3h after reaction, and the solid mixture in crucible is passed sequentially through 200mL substance withdrawl syndrome The complete material of water washing removing unreacted and byproduct of reaction are distilled for the dilute hydrochloric acid and 4000mL of 2.3mol/L, and will washing Clean solids, which is placed in baking oven, is heated to 80 DEG C of dry 6h, obtains Co2N-Ni3N loads graphene oxide-carbon cloth analysis Oxygen material 1.
Embodiment 2:
(1) preparation Co-Ni compound loads graphene oxide dispersion: 400mL distilled water being added into 1000mL beaker With 250mL ethyl alcohol, 10.5 parts of cobalt sources, 12.5 parts of nickel sources and 15 parts of hexas after dissolution is sufficiently stirred, add 9 parts Graphene oxide stirs evenly, and material in beaker is transferred into high-pressure hydrothermal reaction kettle, is placed in heated at constant temperature case and heats To 130 DEG C of reaction 8h, so that cobalt source and nickel source is uniformly attached to the surface of graphene oxide, be after reaction cooled to reaction kettle Room temperature obtains Co-Ni compound load graphene oxide dispersion component 2.
(2) it prepares the graphene oxide-loaded carbon cloth of Co-Ni: graphitized carbon fibre is arranged in 200mL mass fraction Impurity is removed for washing in 6% solution, filters dilute nitric acid solution, successively using 600mL dehydrated alcohol and 3000mL distillation washing Carbon cloth is washed, and carbon cloth is placed in baking oven and is heated to 90 DEG C, dry moisture 6h, Co-Ni made from above-mentioned steps (1) Compound load graphene oxide dispersion component 2 is put into 1000mL beaker, then 32 parts of addition is processed into beaker Graphitized carbon fibre cloth, then places the beaker in ultrasonic dispersers, is heated to 60 DEG C, ultrasonic power 800W, supersonic frequency For 25KHz, it is ultrasonically treated 14h, keeps Co-Ni graphene oxide and carbon cloth fully dispersed uniformly, then place the beaker baking oven In be heated to 80 DEG C, slow evaporation solution, dry 9h makes Co-Ni graphene oxide uniformly be attached to the table of graphitized carbon fibre cloth Face obtains the graphene oxide-loaded carbon cloth component 2 of Co-Ni.
(3) Co is prepared2N-Ni3N loads graphene oxide-carbon cloth and analyses oxygen material: by Co- made from above-mentioned steps (2) The graphene oxide-loaded carbon cloth component 2 and 21 part concentrated ammonia liquor of Ni, which is sequentially placed into crucible, to be placed in nitrogen protection furnace, then will Box atmosphere furnace is passed through N2It is completely exhausted out air, is then 5 DEG C/min by box atmosphere furnace heating rate, rises to 380 DEG C of reactions Material is cooled to room temperature by 3h after reaction, and the solid mixture in crucible is passed sequentially through 300mL substance withdrawl syndrome The complete material of water washing removing unreacted and byproduct of reaction are distilled for the dilute hydrochloric acid and 4000mL of 2.6mol/L, and will washing Clean solids, which is placed in baking oven, is heated to 80 DEG C of dry 7h, obtains Co2N-Ni3N loads graphene oxide-carbon cloth analysis Oxygen material 2.
Embodiment 3:
(1) preparation Co-Ni compound loads graphene oxide dispersion: 400mL distilled water being added into 1000mL beaker With 250mL ethyl alcohol, 11 parts of cobalt sources, 13 parts of nickel sources and 16 parts of hexas after dissolution is sufficiently stirred, add 10 parts of oxidations Graphene stirs evenly, and material in beaker is transferred into high-pressure hydrothermal reaction kettle, is placed in heated at constant temperature case and is heated to 130 DEG C reaction 8h, so that cobalt source and nickel source is uniformly attached to the surface of graphene oxide, be after reaction cooled to room temperature reaction kettle, Obtain Co-Ni compound load graphene oxide dispersion component 3.
(2) it prepares the graphene oxide-loaded carbon cloth of Co-Ni: graphitized carbon fibre is arranged in 200mL mass fraction Impurity is removed for washing in 6% solution, filters dilute nitric acid solution, successively using 600mL dehydrated alcohol and 3500mL distillation washing Carbon cloth is washed, and carbon cloth is placed in baking oven and is heated to 95 DEG C, dry moisture 7h, Co-Ni made from above-mentioned steps (1) Compound load graphene oxide dispersion component 3 is put into 1000mL beaker, then 28 parts of addition is processed into beaker Graphitized carbon fibre cloth, then places the beaker in ultrasonic dispersers, is heated to 65 DEG C, ultrasonic power 800W, supersonic frequency For 25KHz, it is ultrasonically treated 16h, keeps Co-Ni graphene oxide and carbon cloth fully dispersed uniformly, then place the beaker baking oven In be heated to 80 DEG C, slow evaporation solution, dry 10h makes Co-Ni graphene oxide uniformly be attached to graphitized carbon fibre cloth Surface obtains the graphene oxide-loaded carbon cloth component 3 of Co-Ni.
(3) Co is prepared2N-Ni3N loads graphene oxide-carbon cloth and analyses oxygen material: by Co- made from above-mentioned steps (2) The graphene oxide-loaded carbon cloth component 3 and 22 part concentrated ammonia liquor of Ni, which is sequentially placed into crucible, to be placed in nitrogen protection furnace, then will Box atmosphere furnace is passed through N2It is completely exhausted out air, is then 5 DEG C/min by box atmosphere furnace heating rate, rises to 400 DEG C of reactions Material is cooled to room temperature by 4h after reaction, and the solid mixture in crucible is passed sequentially through 400mL substance withdrawl syndrome The complete material of water washing removing unreacted and byproduct of reaction are distilled for the dilute hydrochloric acid and 5000mL of 2.9mol/L, and will washing Clean solids, which is placed in baking oven, is heated to 80 DEG C of dry 9h, obtains Co2N-Ni3N loads graphene oxide-carbon cloth analysis Oxygen material 3.
Embodiment 4:
(1) preparation Co-Ni compound loads graphene oxide dispersion: 400mL distilled water being added into 1000mL beaker With 250mL ethyl alcohol, 11.5 parts of cobalt sources, 13.5 nickel sources and 16 parts of hexas after dissolution is sufficiently stirred, add 11 parts of oxygen Graphite alkene stirs evenly, and material in beaker is transferred into high-pressure hydrothermal reaction kettle, is placed in heated at constant temperature case and is heated to 135 DEG C of reaction 9h, make cobalt source and nickel source uniformly be attached to the surface of graphene oxide, reaction kettle are cooled to room after reaction Temperature obtains Co-Ni compound load graphene oxide dispersion component 4.
(2) it prepares the graphene oxide-loaded carbon cloth of Co-Ni: graphitized carbon fibre is arranged in 200mL mass fraction Impurity is removed for washing in 8% solution, filters dilute nitric acid solution, successively using 800mL dehydrated alcohol and 4000mL distillation washing Carbon cloth is washed, and carbon cloth is placed in baking oven and is heated to 95 DEG C, dry moisture 8h, Co-Ni made from above-mentioned steps (1) Compound load graphene oxide dispersion component 4 is put into 1000mL beaker, then 24 parts of addition is processed into beaker Graphitized carbon fibre cloth, then places the beaker in ultrasonic dispersers, is heated to 65 DEG C, ultrasonic power 800W, supersonic frequency For 25KHz, it is ultrasonically treated 16h, keeps Co-Ni graphene oxide and carbon cloth fully dispersed uniformly, then place the beaker baking oven In be heated to 85 DEG C, slow evaporation solution, dry 10h makes Co-Ni graphene oxide uniformly be attached to graphitized carbon fibre cloth Surface obtains the graphene oxide-loaded carbon cloth component 4 of Co-Ni.
(3) Co is prepared2N-Ni3N loads graphene oxide-carbon cloth and analyses oxygen material: by Co- made from above-mentioned steps (2) The graphene oxide-loaded carbon cloth component 4 and 24 part concentrated ammonia liquor of Ni, which is sequentially placed into crucible, to be placed in nitrogen protection furnace, then will Box atmosphere furnace is passed through N2It is completely exhausted out air, is then 5 DEG C/min by box atmosphere furnace heating rate, rises to 400 DEG C of reactions Material is cooled to room temperature by 4h after reaction, and the solid mixture in crucible is passed sequentially through 400mL substance withdrawl syndrome The complete material of water washing removing unreacted and byproduct of reaction are distilled for the dilute hydrochloric acid and 5000mL of 2.9mol/L, and will washing Clean solids, which is placed in baking oven, is heated to 85 DEG C of dry 9h, obtains Co2N-Ni3N loads graphene oxide-carbon cloth analysis Oxygen material 4.
Embodiment 5:
(1) preparation Co-Ni compound loads graphene oxide dispersion: 400mL distilled water being added into 1000mL beaker With 250mL ethyl alcohol, 12 parts of cobalt sources, 14 parts of nickel sources and 17 parts of hexas after dissolution is sufficiently stirred, add 12 parts of oxidations Graphene stirs evenly, and material in beaker is transferred into high-pressure hydrothermal reaction kettle, is placed in heated at constant temperature case and is heated to 135 DEG C reaction 10h, so that cobalt source and nickel source is uniformly attached to the surface of graphene oxide, reaction kettle be cooled to room after reaction Temperature obtains Co-Ni compound load graphene oxide dispersion component 1.
(2) it prepares the graphene oxide-loaded carbon cloth of Co-Ni: graphitized carbon fibre is arranged in 200mL mass fraction Impurity is removed for washing in 8% solution, filters dilute nitric acid solution, successively using 800mL dehydrated alcohol and 4000mL distillation washing Carbon cloth is washed, and carbon cloth is placed in baking oven and is heated to 95 DEG C, dry moisture 8h, Co-Ni made from above-mentioned steps (1) Compound load graphene oxide dispersion component 5 is put into 1000mL beaker, then 20 parts of addition is processed into beaker Graphitized carbon fibre cloth, then places the beaker in ultrasonic dispersers, is heated to 65 DEG C, ultrasonic power 800W, supersonic frequency For 25KHz, it is ultrasonically treated 18h, keeps Co-Ni graphene oxide and carbon cloth fully dispersed uniformly, then place the beaker baking oven In be heated to 85 DEG C, slow evaporation solution, dry 12h makes Co-Ni graphene oxide uniformly be attached to graphitized carbon fibre cloth Surface obtains the graphene oxide-loaded carbon cloth component 5 of Co-Ni.
(3) Co is prepared2N-Ni3N loads graphene oxide-carbon cloth and analyses oxygen material: by Co- made from above-mentioned steps (2) The graphene oxide-loaded carbon cloth component 5 and 25 part concentrated ammonia liquor of Ni, which is sequentially placed into crucible, to be placed in nitrogen protection furnace, then will Box atmosphere furnace is passed through N2It is completely exhausted out air, is then 5 DEG C/min by box atmosphere furnace heating rate, rises to 400 DEG C of reactions Material is cooled to room temperature by 4h after reaction, and the solid mixture in crucible is passed sequentially through 400mL substance withdrawl syndrome The complete material of water washing removing unreacted and byproduct of reaction are distilled for the dilute hydrochloric acid and 5000mL of 3.1mol/L, and will washing Clean solids, which is placed in baking oven, is heated to 85 DEG C of dry 9h, obtains Co2N-Ni3N loads graphene oxide-carbon cloth analysis Oxygen material 5.
By the test of electrolytic catalysis analysis oxygen performance, electrochemical stability to embodiment 1-5, a kind of Co2N-Ni3N is negative It carries graphene oxide-carbon cloth and analyses its preparation method of oxygen material, by using nitride Co2N and Ni3The main component of N catalyst, In electrolytic process, the more a height of 5mA/cm of current density2When, Co2N-Ni3N compound only needs very low overpotential, only 276- 282mV, electrolysis output voltage are 363-368mV, are above the electrolysis strength of traditional transition metal nitride, and aoxidize stone The black huge surface porosity factor of alkene, simultaneous oxidation graphene have it is amphipathic, make Co2N-Ni3N uniform load is to graphene oxide Surface and stratiform between, increase Co2N-Ni3The contact area of N and electrolyte, to increase electrode material effect electrochemistry It is catalyzed area, improve electro catalytic activity and is electrolysed the efficiency of elutriation oxygen.
A kind of Co2N-Ni3N loads graphene oxide-carbon cloth and analyses its preparation method of oxygen material, by the way that graphitized carbon is added Fiber cloth makes Co as electrode, by ultrasonic disperse and hydro-thermal evaporation2N-Ni3N load graphene oxide is uniformly attached to carbon fiber The surface for tieing up cloth, not needing polymer binder makes catalyst is viscous to bond on electrode, solves most of analysis oxygen electrode material at present Material needs to have wrapped the active site of catalyst using high molecular polymer adhesive, increases the series connection resistance of cell reaction It is anti-, the problem of causing catalytic activity to reduce, while solving high molecular polymer adhesive again and can gradually divide in electrolytic process The problems in solution, cause catalyst that can not be fixed to electrically-conductive backing plate and be lost to electrolyte, improve the reality of analysis Oxygen Electrode Material With property and durability.

Claims (11)

1. a kind of Co2N-Ni3N loads graphene oxide-carbon cloth and analyses its preparation method of oxygen material, including following parts by weight proportion Formula material, it is characterised in that: 10-12 parts of cobalt sources, 12-14 parts of nickel sources, 8-12 parts of graphene oxides, 20-35 parts of carbon fibers Cloth, 15-17 part hexa, 20-25 parts of concentrated ammonia liquors, preparation method include and following experimental drug: dust technology, ethyl alcohol, steaming Distilled water, dilute hydrochloric acid.
2. a kind of Co according to claim 12N-Ni3N loads graphene oxide-carbon cloth and analyses its preparation method of oxygen material, Be characterized in that: the cobalt source is any one of cobalt chloride hexahydrate, Cobalt monosulfate heptahydrate or cabaltous nitrate hexahydrate, wherein six water Close cobalt chloride CoCl2·6H2CoCl in O2Mass fraction is 51.5-52.6%, Cobalt monosulfate heptahydrate CoSO4·7H2CoSO in O4 Mass fraction is 50.8-52.4%, cabaltous nitrate hexahydrate Co (NO3)2·6H2Co (NO in O3)2Mass fraction is 60.1- 61.3%.
3. a kind of Co according to claim 12N-Ni3N loads graphene oxide-carbon cloth and analyses its preparation method of oxygen material, Be characterized in that: the nickel source is six hydration Nickel Chlorides or Nickelous nitrate hexahydrate, Nickel dichloride hexahydrate NiCl2·6H2NiCl in O2 Mass fraction is 51.8-53.1%, Nickelous nitrate hexahydrate Ni (NO3)2·6H2Ni (NO in O3)2Mass fraction is 58.2- 60.5%.
4. a kind of Co according to claim 12N-Ni3N loads graphene oxide-carbon cloth and analyses its preparation method of oxygen material, Be characterized in that: the graphene oxide specification is 1-3 layers, diameter 0.5-2.5um, with a thickness of 0.5-1.5nm.
5. a kind of Co according to claim 12N-Ni3N loads graphene oxide-carbon cloth and analyses its preparation method of oxygen material, Be characterized in that: the carbon cloth is graphitized carbon fibre cloth, phosphorus content >=95%.
6. a kind of Co according to claim 12N-Ni3N loads graphene oxide-carbon cloth and analyses its preparation method of oxygen material, Be characterized in that: the hexa chemical formula is C6H12N4, mass fraction >=93.5.
7. a kind of Co according to claim 12N-Ni3N loads graphene oxide-carbon cloth and analyses its preparation method of oxygen material, It is characterized in that: HNO in the dust technology3Mass fraction is 5-8%.
8. a kind of Co according to claim 12N-Ni3N loads graphene oxide-carbon cloth and analyses its preparation method of oxygen material, It is characterized in that: ethyl alcohol mass fraction >=99.5%.
9. a kind of Co according to claim 12N-Ni3N loads graphene oxide-carbon cloth and analyses its preparation method of oxygen material, Be characterized in that: the mass fraction of the concentrated ammonia liquor is 23.2-27.6%.
10. a kind of Co according to claim 12N-Ni3N loads graphene oxide-carbon cloth and analyses its preparation method of oxygen material, It is characterized by: the dilute hydrochloric acid substance withdrawl syndrome is 2.3-3.1mol/L, mass fraction 8-11%.
11. a kind of Co according to claim 12N-Ni3N loads graphene oxide-carbon cloth and analyses its preparation method of oxygen material, It is characterized by: the Co2N-Ni3N loads graphene oxide-carbon cloth and analyses oxygen material, preparation method the following steps are included:
(1) preparation Co-Ni compound load graphene oxide dispersion: into 1000mL beaker be added 400mL distilled water and 250mL ethyl alcohol, 10-12 parts of cobalt sources, 12-14 parts of nickel sources and 15-17 parts of hexas, after dissolution is sufficiently stirred, adds 8-12 parts of graphene oxides stir evenly, and material in beaker is transferred into high-pressure hydrothermal reaction kettle, are placed in heated at constant temperature case In be heated to 130-135 DEG C of reaction 7-10h, so that cobalt source and nickel source is uniformly attached to the surface of graphene oxide, after reaction Reaction kettle is cooled to room temperature, Co-Ni compound load graphene oxide dispersion is obtained.
(2) prepare the graphene oxide-loaded carbon cloth of Co-Ni: it is 5- that graphitized carbon fibre, which is arranged in 200mL mass fraction, Washing removes impurity in 8% solution, filters dilute nitric acid solution, is successively steamed using 500-800mL dehydrated alcohol and 3000-4000mL Distilled water washs carbon cloth, and carbon cloth is placed in baking oven and is heated to 90-95 DEG C, dry moisture 5-8h, above-mentioned steps (1) Co-Ni compound load graphene oxide dispersion obtained is put into 1000mL beaker, then 20-35 parts are added into beaker Processed graphitized carbon fibre cloth, then places the beaker in ultrasonic dispersers, is heated to 60-65 DEG C, and ultrasonic power is 800W, supersonic frequency 25KHz are ultrasonically treated 12-18h, keep Co-Ni graphene oxide and carbon cloth fully dispersed uniformly, It places the beaker again and is heated to 80-85 DEG C in baking oven, slow evaporation solution, dry 8-12h keeps Co-Ni graphene oxide uniformly attached On the surface of graphitized carbon fibre cloth, obtain the graphene oxide-loaded carbon cloth of Co-Ni.
(3) Co is prepared2N-Ni3N loads graphene oxide-carbon cloth and analyses oxygen material: by Co-Ni oxygen made from above-mentioned steps (2) Graphite alkene load carbon cloth and 20-25 parts of concentrated ammonia liquors are sequentially placed into crucible and are placed in nitrogen protection furnace, then by box gas Atmosphere furnace is passed through N2It is completely exhausted out air, is then 5 DEG C/min by box atmosphere furnace heating rate, rises to 380-400 DEG C of reaction 3- Material is cooled to room temperature by 4h after reaction, and the solid mixture in crucible is passed sequentially through to the amount of 200-400mL substance The dilute hydrochloric acid and 4000-5000mL that concentration is 2.3-3.1mol/L distill water washing and remove the complete material of unreacted and react secondary Product, and the solids of washes clean is placed in baking oven and is heated to 80-85 DEG C of dry 6-9h, obtain Co2N-Ni3N load oxidation Graphene-carbon cloth analyses oxygen material.
CN201910839931.3A 2019-09-06 2019-09-06 A kind of Co2N-Ni3N loads graphene oxide-carbon cloth and analyses its preparation method of oxygen material Withdrawn CN110508314A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112626538A (en) * 2020-11-24 2021-04-09 东南大学 Transition metal composite material based on biomass nitrogen doping and preparation method thereof
CN113198470A (en) * 2021-05-18 2021-08-03 北京理工大学 Carbon substrate composite catalyst loaded with cuprous oxide and reduced graphene oxide as well as preparation method and application of carbon substrate composite catalyst
CN114284509A (en) * 2021-08-05 2022-04-05 先进能源产业研究院(广州)有限公司 Preparation method of trimetal oxygen evolution electrocatalyst

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108520827A (en) * 2018-01-29 2018-09-11 江苏大学 Carbon fiber/NiCo2O4The preparation method of/graphene composite material
CN108671953A (en) * 2018-05-17 2018-10-19 中南大学 A kind of transition metal nitride/carbon elctro-catalyst and its preparation and application
CN109908905A (en) * 2019-04-22 2019-06-21 苏州大学 A method of preparing metal/metal oxide composite electrocatalyst

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108520827A (en) * 2018-01-29 2018-09-11 江苏大学 Carbon fiber/NiCo2O4The preparation method of/graphene composite material
CN108671953A (en) * 2018-05-17 2018-10-19 中南大学 A kind of transition metal nitride/carbon elctro-catalyst and its preparation and application
CN109908905A (en) * 2019-04-22 2019-06-21 苏州大学 A method of preparing metal/metal oxide composite electrocatalyst

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CHAITI RAY ET AL.: "Conceptual design of three-dimensional CoN/Ni3N-coupled nanograsses integrated on N-doped carbon to serve as efficient and robust water splitting electrocatalysts", 《JOURNAL OF MATERIALS CHEMISTRY A》 *
DI WANG ET AL.: "Nickel-cobalt layered double hydroxide nanosheets with reduced graphene oxide grown on carbon cloth for symmetric supercapacitor", 《APPLIED SURFACE SCIENCE》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112626538A (en) * 2020-11-24 2021-04-09 东南大学 Transition metal composite material based on biomass nitrogen doping and preparation method thereof
CN113198470A (en) * 2021-05-18 2021-08-03 北京理工大学 Carbon substrate composite catalyst loaded with cuprous oxide and reduced graphene oxide as well as preparation method and application of carbon substrate composite catalyst
CN113198470B (en) * 2021-05-18 2021-12-03 北京理工大学 Carbon substrate composite catalyst loaded with cuprous oxide and reduced graphene oxide as well as preparation method and application of carbon substrate composite catalyst
CN114284509A (en) * 2021-08-05 2022-04-05 先进能源产业研究院(广州)有限公司 Preparation method of trimetal oxygen evolution electrocatalyst

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