CN116695170A - Preparation method of Zn-doped Bi2O3 bimetallic catalyst - Google Patents

Preparation method of Zn-doped Bi2O3 bimetallic catalyst Download PDF

Info

Publication number
CN116695170A
CN116695170A CN202310863547.3A CN202310863547A CN116695170A CN 116695170 A CN116695170 A CN 116695170A CN 202310863547 A CN202310863547 A CN 202310863547A CN 116695170 A CN116695170 A CN 116695170A
Authority
CN
China
Prior art keywords
doped
solution
bimetallic catalyst
preparation
salt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310863547.3A
Other languages
Chinese (zh)
Inventor
薛嵘
王晨
郭艳
许崇庆
闫桂焕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ecology Institute Of Shandong Academy Of Sciences (the Sino-Japanese Friendship Biotechnology Research Center Shandong Academy Of Sciences)
Qilu University of Technology
Original Assignee
Ecology Institute Of Shandong Academy Of Sciences (the Sino-Japanese Friendship Biotechnology Research Center Shandong Academy Of Sciences)
Qilu University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ecology Institute Of Shandong Academy Of Sciences (the Sino-Japanese Friendship Biotechnology Research Center Shandong Academy Of Sciences), Qilu University of Technology filed Critical Ecology Institute Of Shandong Academy Of Sciences (the Sino-Japanese Friendship Biotechnology Research Center Shandong Academy Of Sciences)
Priority to CN202310863547.3A priority Critical patent/CN116695170A/en
Publication of CN116695170A publication Critical patent/CN116695170A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8671—Removing components of defined structure not provided for in B01D53/8603 - B01D53/8668
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/23—Carbon monoxide or syngas
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
    • C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
    • C25B11/055—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the substrate or carrier material
    • C25B11/057—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the substrate or carrier material consisting of a single element or compound
    • C25B11/065—Carbon
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
    • C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
    • C25B11/073—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material
    • C25B11/091—Electrodes 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
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B3/00—Electrolytic production of organic compounds
    • C25B3/01—Products
    • C25B3/07—Oxygen containing compounds
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B3/00—Electrolytic production of organic compounds
    • C25B3/20—Processes
    • C25B3/25—Reduction
    • C25B3/26—Reduction of carbon dioxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/50—Carbon oxides
    • B01D2257/504—Carbon dioxide

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Electrochemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Catalysts (AREA)

Abstract

The invention provides a Zn doped Bi 2 O 3 A preparation method of a bimetallic catalyst belongs to the field of new energy nano materials and the technical field of catalysis, and is mainly applied to electrochemical catalysis of carbon dioxide. The main steps of the technical scheme are that dimethyl imidazole is dissolved in methanol, stirred evenly and marked as solution A; zinc nitrate hexahydrate and bismuth nitrate pentahydrateDissolving in methanol, stirring uniformly, and marking as solution B; slowly pouring the solution B into the solution A, continuously stirring uniformly, standing, separating solid from liquid of a reaction product, and drying in a drying oven to obtain a white product; then annealing the white product obtained in the second step in a muffle furnace to obtain Zn doped Bi 2 O 3 Bimetallic catalysts. The Zn doped Bi obtained by the invention 2 O 3 The bimetallic catalyst has excellent catalytic performance in the aspect of carbon dioxide electrocatalysis.

Description

Preparation method of Zn-doped Bi2O3 bimetallic catalyst
Technical Field
The invention belongs to the field of new energy nano materials and the technical field of catalysis, and in particular relates to a Zn doped Bi 2 O 3 A preparation method of a bimetallic catalyst.
Background
The disclosure of this background section is only intended to increase the understanding of the general background of the invention and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art already known to those of ordinary skill in the art.
In recent years, the massive consumption of fossil fuels has led to excessive emissions of greenhouse gases, in particular carbon dioxide (CO) 2 ) And thus cause global problems such as resource exhaustion and a series of extreme weather. So CO is converted into 2 As a potential carbon resource, synthesis of chemical products by various methods has become a consensus. In which the use of electrochemical catalytic reduction is currently the ideal CO 2 Catalytic conversion method can realize CO 2 Directly converts into various energy materials, thereby realizing artificial closed carbon circulation. However, many challenges remain in real-world operation and large-scale industrial applications, such as excessive catalyst cost, poor product selectivity and long-term stability.
Paper Zn doped two-dimensional layered delta-Bi 2 O 3 The research on the photocatalytic nitrogen fixation performance of the nano-sheet discloses that the photo-generated current carrying can be effectively inhibited by doping a modified catalyst to form a trapAnd (3) compounding the particles to obtain high-efficiency photocatalysis nitrogen fixation efficiency. However, there is no concern about the problem of "low cost, high selectivity catalytic electrochemical reduction of carbon dioxide".
Patent CN115304099a discloses surface electronically localized bismuth oxide nanoplatelets and their use in electrocatalytic carbon dioxide reduction and zinc-carbon dioxide cells, but studies have found that: bi-based catalysts have the problems of complicated preparation, poor intrinsic activity, low product selectivity and the like.
Currently, no catalyst has been found in the industry for electrochemical reduction of carbon dioxide with low cost, high selectivity catalysis among a wide variety of catalysts.
Disclosure of Invention
In order to solve the problems, the invention provides a method for preparing Zn-doped Bi with high-efficiency electrochemical reduction of carbon dioxide with low cost and simple manufacture 2 O 3 The bimetallic catalyst solves the problems of complicated preparation, poor intrinsic activity, low product selectivity and the like of the existing Bi-based catalyst.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
in a first aspect of the present invention, there is provided a Zn-doped Bi 2 O 3 A method of preparing a bimetallic catalyst comprising:
dissolving zinc salt and bismuth salt in a solvent to obtain a salt solution;
mixing the salt solution with an alcohol solution of dimethyl imidazole, reacting, and collecting a solid product;
drying and annealing the solid product to obtain Zn doped Bi 2 O 3 A bimetallic catalyst;
wherein the molar ratio of the zinc salt to the bismuth salt is 1-1.5: 1 to 1.5.
In a second aspect of the present invention, there is provided Zn-doped Bi prepared by the above method 2 O 3 Bimetallic catalysts.
In a third aspect of the present invention, there is provided the above Zn-doped Bi 2 O 3 Use of a bimetallic catalyst for catalyzing the electroreduction of carbon dioxide to formic acid and carbon monoxide.
The beneficial effects of the invention are that
(1) The method for preparing Zn doped Bi by adopting the invention 2 O 3 The method of the bimetallic catalyst has the advantages of simple preparation process, low cost and excellent catalytic performance in electrochemical reduction of carbon dioxide. The Zn-Bi interface is presented on a microscopic scale, and the CO can be effectively promoted by the bimetal synergistic effect between Zn-Bi 2 Adsorption on the catalyst surface and reduces the energy barrier for the catalytic reaction.
(2) Zn doped Bi prepared by the invention 2 O 3 The bimetallic catalyst is applied to electrocatalytic carbon dioxide reduction reaction, and effectively inhibits hydrogen evolution reaction. at-1.0V vs. RHE, 108mA cm can be achieved -2 While the faraday efficiencies of formic acid and carbon monoxide can reach 91% and 6%, respectively. The invention can provide thought for designing other bimetallic catalysts for electrochemical reduction of carbon dioxide.
(3) The preparation method is simple, has strong practicability and is easy to popularize.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
FIG. 1 Zn-doped Bi according to the present invention 2 O 3 A preparation flow chart of the bimetallic catalyst;
FIG. 2 Zn-doped Bi prepared in example 2 of the present invention 2 O 3 Scanning electron microscopy of bimetallic catalysts;
FIG. 3 Zn-doped Bi prepared in example 2 of the present invention 2 O 3 Transmission electron microscopy of bimetallic catalysts;
FIG. 4 Zn-doped Bi prepared in example 2 of the present invention 2 O 3 Transmission electron microscope X-ray energy spectrum of bimetallic catalyst;
FIG. 5 Zn-doped Bi prepared in example 2 of the present invention 2 O 3 Bimetallic catalyst in CO 2 Catalytic performance diagram in electroreduction.
FIG. 6 Zn-doped Bi prepared in example 2 of the present invention 2 O 3 Co of bimetallic catalysts at-1.0V vs. RHE voltage 2 Electroreduction stability test pattern.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
Zn doped Bi 2 O 3 A method of preparing a bimetallic catalyst comprising:
step 1, dissolving dimethyl imidazole in methanol, uniformly stirring, and marking as a solution A;
step 2, dissolving zinc nitrate hexahydrate and bismuth nitrate pentahydrate in methanol, uniformly stirring, and marking as a solution B;
step 3, slowly pouring the solution B into the solution A, continuously stirring uniformly, standing, separating solid and liquid of a reaction product, and drying in a drying oven to obtain a white product;
step 4, annealing the white product obtained in the step two in a muffle furnace to obtain Zn doped Bi 2 O 3 Bimetallic catalysts.
In some embodiments, the concentration of the alcoholic solution of dimethylimidazole is between 0.2 and 0.4mmol/ml.
In some embodiments, the zinc salt is zinc nitrate hexahydrate.
In some embodiments, the concentration of zinc salt in the salt solution is from 0.2 to 0.4mmol/ml.
In some embodiments, the bismuth salt is bismuth nitrate pentahydrate.
In some embodiments, the concentration of bismuth salt in the salt solution is 0.2 to 0.4mmol/ml.
In some embodiments, the molar mass ratio of bismuth salt to dimethylimidazole is 1:3-5.
In some embodiments, the annealing temperature is 200-240 ℃ and the annealing time is 2.5-3 hours;
in some embodiments, the rate of temperature increase is 2 to 5 ℃/min.
In some embodiments, the electrode includes, but is not limited to, carbon paper, carbon cloth.
The invention will now be described in further detail with reference to the following specific examples, which should be construed as illustrative rather than limiting.
EXAMPLE 1 Zn-doped Bi 2 O 3 Preparation of bimetallic catalysts
Step 1, 10mmol of dimethyl imidazole is dissolved in 50ml of methanol, stirred for 0.5h and marked as solution A;
step 2,2.5mmol of zinc nitrate hexahydrate and 2.5mmol of bismuth nitrate pentahydrate are dissolved in 50ml of methanol and stirred for 1h and marked as solution B;
step 3, slowly pouring the solution B into the solution A, continuously stirring for 2 hours, standing for 6 hours, separating solid and liquid of a reaction product by a centrifuge at 6000 rpm, and drying for 6 hours at 80 ℃ in a drying box to obtain a white product;
step 4, annealing the white product obtained in the step two in a muffle furnace at 200 ℃ for 3 hours, wherein the heating rate is 5 ℃/min, and finally obtaining the Zn doped Bi 2 O 3 Bimetallic catalysts.
EXAMPLE 2 Zn-doped Bi 2 O 3 Preparation of bimetallic catalysts
Step 1, 16mmol of dimethyl imidazole is dissolved in 50ml of methanol, stirred for 0.5h and marked as solution A;
step 2,4mmol of zinc nitrate hexahydrate and 4mmol of bismuth nitrate pentahydrate are dissolved in 50ml of methanol, stirred for 1h and marked as solution B;
step 3, slowly pouring the solution B into the solution A, continuously stirring for 2 hours, standing for 6 hours, separating solid and liquid of a reaction product by a centrifuge at 6000 rpm, and drying for 6 hours at 80 ℃ in a drying box to obtain a white product;
step 4, annealing the white product obtained in the step two in a muffle furnace at 200 ℃ for 3 hours, wherein the heating rate is 5 ℃/min, and finally obtaining the Zn doped Bi 2 O 3 Bimetallic catalysts.
EXAMPLE 3 Zn-doped Bi 2 O 3 Preparation of bimetallic catalysts
Step 1, dissolving 20mmol of dimethyl imidazole in 50ml of methanol, stirring for 0.5h, and marking as a solution A;
step 2,5mmol of zinc nitrate hexahydrate and 5mmol of bismuth nitrate pentahydrate are dissolved in 50ml of methanol, stirred for 1h and marked as solution B;
step 3, slowly pouring the solution B into the solution A, continuously stirring for 2 hours, standing for 6 hours, separating solid and liquid of a reaction product by a centrifuge at 6000 rpm, and drying for 6 hours at 80 ℃ in a drying box to obtain a white product;
step 4, annealing the white product obtained in the step two in a muffle furnace at 200 ℃ for 3 hours, wherein the heating rate is 5 ℃/min, and finally obtaining the Zn doped Bi 2 O 3 Bimetallic catalysts.
EXAMPLE 4 Zn-doped Bi 2 O 3 Preparation of bimetallic catalysts
Step 1, dissolving 20mmol of dimethyl imidazole in 50ml of methanol, stirring for 0.5h, and marking as a solution A;
step 2,5mmol of zinc nitrate hexahydrate and 5mmol of bismuth nitrate pentahydrate are dissolved in 50ml of methanol, stirred for 1h and marked as solution B;
step 3, slowly pouring the solution B into the solution A, continuously stirring for 2 hours, standing for 6 hours, separating solid and liquid of a reaction product by a centrifuge at 6000 rpm, and drying for 6 hours at 80 ℃ in a drying box to obtain a white product;
step 4, annealing the white product obtained in the step two in a muffle furnace at 200 ℃ for 3 hours, wherein the heating rate is 2 ℃/min, and finally obtaining the Zn doped Bi 2 O 3 Bimetallic catalysts.
EXAMPLE 5 Zn-doped Bi 2 O 3 Electrode preparation of bimetallic catalysts
10mg of the catalyst prepared in example 1 was uniformly dispersed in a mixed solution of 50ml of naphthol and 950ml of absolute ethanol, and then a certain amount of the mixed solution was uniformly coated on an electrode (carbon cloth) and was used after natural drying.
Examples6Zn doped Bi 2 O 3 Electrode preparation of bimetallic catalysts
20mg of the catalyst prepared in example 1 was uniformly dispersed in a mixed solution of 100ml of naphthol and 900ml of absolute ethanol, and then a certain amount of the mixed solution was uniformly coated on an electrode (carbon cloth) and was used after natural drying.
EXAMPLE 7 Zn-doped Bi 2 O 3 Bimetallic catalyst in CO 2 Application to electrochemical reduction
The electrochemical test of this example was performed in a flow cell. The gas diffusion electrodes prepared in examples 5 and 6 were used as working electrodes, platinum sheets as counter electrodes, and Ag/AgCl as reference electrode, respectively. Controlling CO using mass flow meter 2 The flow rate of (2) is 20ml/min; the electrolyte is 1M KOH solution; using an electrochemical workstation to measure the system; the gas and liquid phase products were quantitatively analyzed by gas chromatography and nuclear magnetism, respectively.
As shown in FIG. 5, the present invention can achieve-108 mA cm at-1.0V vs. RHE -2 While the faraday efficiencies of formic acid and carbon monoxide can reach 91% and 6%, respectively.
As shown in FIG. 6, the electrode prepared by the invention always maintains high catalytic efficiency in the continuous electroreduction process for up to 12 hours, and has better stability.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. Zn doped Bi 2 O 3 A method for preparing a bimetallic catalyst, comprising:
dissolving zinc salt and bismuth salt in a solvent to obtain a salt solution;
mixing the salt solution with an alcohol solution of dimethyl imidazole, reacting, and collecting a solid product;
drying and annealing the solid product to obtain Zn doped Bi 2 O 3 A bimetallic catalyst;
wherein the molar ratio of the zinc salt to the bismuth salt is 1-1.5: 1 to 1.5.
2. Zn-doped Bi according to claim 1 2 O 3 The preparation method of the bimetallic catalyst is characterized in that the concentration of the alcohol solution of the dimethyl imidazole is 0.2-0.4 mmol/ml.
3. Zn-doped Bi according to claim 1 2 O 3 The preparation method of the bimetallic catalyst is characterized in that the zinc salt is zinc nitrate hexahydrate.
4. Zn-doped Bi according to claim 1 2 O 3 The preparation method of the bimetallic catalyst is characterized in that the concentration of zinc salt in the salt solution is 0.2-0.4 mmol/ml.
5. Zn-doped Bi according to claim 1 2 O 3 The preparation method of the bimetallic catalyst is characterized in that the bismuth salt is bismuth nitrate pentahydrate.
6. Zn-doped Bi according to claim 1 2 O 3 The preparation method of the bimetallic catalyst is characterized in that the concentration of bismuth salt in the salt solution is 0.2-0.4 mmol/ml.
7. Zn-doped Bi according to claim 1 2 O 3 The preparation method of the bimetallic catalyst is characterized in that the molar mass ratio of bismuth salt to dimethyl imidazole is 1:3-5.
8. Zn-doped Bi according to claim 1 2 O 3 The preparation method of the bimetallic catalyst is characterized in that the annealing temperature is 200-240 ℃ and the annealing time is 2.5-3 h;
or the temperature rising rate is 2-5 ℃/min.
9. Zn-doped Bi prepared by the method of any one of claims 1 to 8 2 O 3 Bimetallic catalysts.
10. The Zn-doped Bi of claim 9 2 O 3 Use of a bimetallic catalyst for catalyzing the electroreduction of carbon dioxide to formic acid and carbon monoxide.
CN202310863547.3A 2023-07-13 2023-07-13 Preparation method of Zn-doped Bi2O3 bimetallic catalyst Pending CN116695170A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310863547.3A CN116695170A (en) 2023-07-13 2023-07-13 Preparation method of Zn-doped Bi2O3 bimetallic catalyst

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310863547.3A CN116695170A (en) 2023-07-13 2023-07-13 Preparation method of Zn-doped Bi2O3 bimetallic catalyst

Publications (1)

Publication Number Publication Date
CN116695170A true CN116695170A (en) 2023-09-05

Family

ID=87829401

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310863547.3A Pending CN116695170A (en) 2023-07-13 2023-07-13 Preparation method of Zn-doped Bi2O3 bimetallic catalyst

Country Status (1)

Country Link
CN (1) CN116695170A (en)

Similar Documents

Publication Publication Date Title
CN105107536B (en) A kind of preparation method of polyhedron shape phosphatization cobalt water electrolysis hydrogen production catalyst
CN109065897B (en) Phosphorus-doped porous carbon-coated cobaltosic oxide oxygen reduction catalyst and preparation method and application thereof
CN109569683A (en) A kind of preparation method and application of the porous carbon sheet of nitrogen-phosphor codoping/transition metal phosphide composite material
CN108242549A (en) A kind of catalyst of VIII group single atomic dispersion and preparation method thereof
CN108736031A (en) A kind of self-supporting PtCo alloy nanoparticle catalyst and the preparation method and application thereof
CN108295870B (en) Preparation method of sulfide-graphene composite material photoelectric catalyst
CN107020075B (en) Simple substance bismuth catalyst for electrochemical reduction of carbon dioxide and preparation and application thereof
CN107749483B (en) Catalyst for hydrogen-air fuel battery cathode material and preparation method thereof
Yu et al. NiO nanoparticles dotted TiO2 nanosheets assembled nanotubes PN heterojunctions for efficient interface charge separation and photocatalytic hydrogen evolution
CN112647095B (en) Atomically dispersed bimetallic site anchored nitrogen-doped carbon material and preparation and application thereof
CN113437314B (en) Nitrogen-doped carbon-supported low-content ruthenium and Co 2 Three-function electrocatalyst of P nano particle and preparation method and application thereof
CN113013428A (en) Preparation method and application of Fe and Co bimetal doped mesoporous carbon-oxygen reduction catalyst
CN114293200B (en) Porous carbon supported amorphous/crystalline ruthenium-based high-efficiency hydrogen evolution catalyst and preparation and application thereof
CN107335433B (en) Preparation method of molybdenum oxide-based efficient electrocatalytic hydrogen evolution catalyst
CN109759066B (en) Preparation method of boron-doped graphene-loaded cobalt-nickel bimetallic oxide oxygen evolution catalyst
CN110048134A (en) A kind of universality method preparing porous nitrogen fluorine codope carbon oxygen reduction catalyst
CN112209356B (en) Class P2O5Structural material, and preparation method and application thereof
CN111013615A (en) Preparation method of CoP catalyst with hydrogen precipitation and oxygen precipitation high-efficiency dual functions
Liu et al. Nickel-cobalt derived nanowires/nanosheets as electrocatalyst for efficient H2 generation via urea oxidation reaction
Chong et al. Hollow double-shell stacked CdS@ ZnIn2S4 photocatalyst incorporating spatially separated dual cocatalysts for the enhanced photocatalytic hydrogen evolution and hydrogen peroxide production
CN101814609B (en) Anode composite catalyst Pt-HxMoO3 for direct methanol fuel cells, and preparation method thereof
CN116695170A (en) Preparation method of Zn-doped Bi2O3 bimetallic catalyst
CN114990612A (en) Indium-based perovskite catalyst LaInO 3 Preparation and use of
CN112281183B (en) Cluster-shaped bismuth selenide, preparation method thereof and application of cluster-shaped bismuth selenide in electrocatalytic reduction of carbon dioxide
CN110668406B (en) Preparation method and application of nickel selenide nanosheet

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination