CN108649237A - A kind of cobalt-nitrogen-doped carbon composite material and preparation method and application based on gel pyrolysis - Google Patents
A kind of cobalt-nitrogen-doped carbon composite material and preparation method and application based on gel pyrolysis Download PDFInfo
- Publication number
- CN108649237A CN108649237A CN201810392581.6A CN201810392581A CN108649237A CN 108649237 A CN108649237 A CN 108649237A CN 201810392581 A CN201810392581 A CN 201810392581A CN 108649237 A CN108649237 A CN 108649237A
- Authority
- CN
- China
- Prior art keywords
- cobalt
- composite material
- nitrogen
- carbon composite
- doped carbon
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/90—Selection of catalytic material
- H01M4/9075—Catalytic material supported on carriers, e.g. powder carriers
- H01M4/9083—Catalytic material 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
- H01M4/90—Selection of catalytic material
- H01M4/9041—Metals or alloys
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The present invention relates to a kind of cobalt nitrogen-doped carbon composite material and preparation method based on gel pyrolysis and application, composite material is to prepare Gel Precursor using cobalt and organoligand coordination, then obtain by high temperature cabonization；Preparation method includes：Prepared by the plural gel of cobalt, prepared by xerogel, prepared by the cobalt nitrogen-doped carbon composite material based on gel pyrolysis；Composite material is used for oxygen reduction catalyst.It is of the invention environmentally friendly, simple, it is a kind of green chemical synthesis method；Obtained cobalt nitrogen-doped carbon composite material has many advantages, such as stable chemical property, high-specific surface area and high electrocatalysis characteristic, makes full use of the doping of transition metal Co, N, provides more active sites, to improve electrocatalysis characteristic.
Description
Technical field
The invention belongs to nano-carbon material and its preparation and application field, more particularly to a kind of cobalt-based on gel pyrolysis
Nitrogen-doped carbon composite material and preparation method and application.
Background technology
In the anode hydroxide reaction and Cathodic oxygen reduction of fuel cell, the speed ratio hydroxide of oxygen reduction reaction
It reacts more slowly, limits the efficiency and performance of the conversion of fuel cell electrochemical energy.Platinum-base material is that most effective cathode is urged
Agent, but platinum, there are of high cost, reserves are low, it is sensitive to methanol the shortcomings of, therefore find effective, durable, cheap non-platinum base and urge
It is the direction that this field is made great efforts to change material.Wherein, transition metal/nitrogen co-doped C catalyst and nitrogen-doped carbon catalyst are with good
Good performance and stability outstanding has attracted numerous concerns.It has been investigated that being urged for fuel cell non noble metal oxygen reduction
The preparation of agent need to have transition metal source, nitrogen source, carbon source, high-temperature heat treatment, this is because transition metal, carbon, nitrogen are same respectively
When play an important role in the presence of to the formation of catalyst activity position；Nitrogen is the important component of active sites；Iron or cobalt are than other mistakes
It crosses metal-doped catalyst activity and wants high.
Invention content
Technical problem to be solved by the invention is to provide it is a kind of based on gel pyrolysis cobalt-nitrogen-doped carbon composite material and
Preparation method and application, this method environmental protection, of low cost, obtained cobalt-nitrogen-doped carbon composite material has higher electro-catalysis
Activity.
A kind of cobalt-nitrogen-doped carbon composite material based on gel pyrolysis of the present invention, the composite material is to pass through chemistry
Synthesis metal and organoligand coordination form Gel Precursor, using what is be carbonized at high temperature after freeze-drying；Its
Middle organic ligand is melamine and niacin.
A kind of preparation method of cobalt-nitrogen-doped carbon composite material based on gel pyrolysis of the present invention, including：
(1) melamine, niacin and cobalt acetate are separately added into deionized water, it is molten obtains melamine solution, niacin
These three solution are mixed and stirred for by liquid and cobalt acetate solution, cooling, obtain the plural gel of cobalt；Wherein melamine, niacin
Molar ratio with cobalt acetate is 1:1:0~0.05, and cobalt acetate is not 0；A concentration of 0.1~0.2mmol/ of melamine solution
ML, a concentration of 0.1~0.3mmol/mL of niacin solution, a concentration of 0.001~0.1mmol/mL of cobalt acetate solution；
(2) dry by the plural gel aging of cobalt in step (1), xerogel is obtained, is carbonized, pickling, re-dry obtains
Cobalt-nitrogen-doped carbon composite material based on gel pyrolysis.
Mixing temperature is 80-100 DEG C in the step (1)；Mixing time is 8-15min.
Ageing time is 2-4d in the step (2).
Drying is in the step (2)：Dry 40-50h is placed in freeze dryer.
The technological parameter of carbonization is in the step (2)：Carburizing atmosphere is inert gas, and carburizing temperature is 600~800
DEG C, carbonization time 1-3h, heating rate is 3~6 DEG C/min.
The inert gas is the argon gas of high-purity.
Pickling is in the step (2)：5-7h is stirred with 1mol/L hydrochloric acid.
Re-dry is in the step (2)：It is dried overnight in 60 DEG C of vacuum drying ovens.
A kind of cobalt-nitrogen-doped carbon composite material based on gel pyrolysis of the present invention is used for oxygen reduction catalyst.
The present invention is using the supramolecular hydrogel with coordinate bond between a large amount of hydrogen bonds and metal ion and ligand as before
Body is driven, then the carbon material of the cobalt-N doping with high catalytic activity is obtained by mixing and high temperature cabonization technology.Prepared material
Material has bigger serface and high electrocatalytic active, is ideal oxygen reduction catalyst.
Cobalt-nitrogen-doped carbon composite material has the cobalt ions of special presoma and molecular level after inventive gel pyrolysis
There is dispersibility the supramolecular hydrogel of coordinate bond between a large amount of hydrogen bonds and metal ion and ligand will become exploitation gel catalysis
The potential precursor of agent.
Advantageous effect
(1) preparation process of the present invention is environmentally friendly, simple, is a kind of green chemical synthesis method；
(2) experimental design of the present invention is ingenious.By being simply stirred to react at 80-100 DEG C, it is prepared for special cobalt coordination
Gel Precursor, cobalt-nitrogen-doped carbon composite material is prepared using simple high temperature cabonization；
(3) cobalt-nitrogen-doped carbon composite material that the present invention obtains has stable chemical property, high-specific surface area and height electricity
The advantages that catalytic performance, makes full use of the doping of transition metal Co, N, provides more active sites, to improve electro-catalysis
Performance.When as oxygen reduction catalyst, the take-off potential of cyclic voltammetry curve has reached 0.94V, the half-wave of linear volt-ampere curve
Current potential has reached 0.86V, is a kind of ideal oxygen reduction electro-catalyst.
Description of the drawings
Fig. 1 is the SEM figures of the gel of cobalt made from embodiment 1-3.
Fig. 2 is that the SEM of cobalt-nitrogen-doped carbon composite material made from embodiment 1 schemes (a) and TEM schemes (b).
Fig. 3 is the Raman curve of cobalt-nitrogen-doped carbon composite material made from embodiment 1-3.
Fig. 4 is cobalt-nitrogen-doped carbon composite material made from embodiment 1-3 in the case where being saturated oxygen and the potassium hydroxide of 0.1M is molten
Cyclic voltammetry curve (a) in liquid and linear volt-ampere curve (b).
Fig. 5 is cobalt-nitrogen-doped carbon composite material made from embodiment 1,4,5 in the case where being saturated oxygen and the potassium hydroxide of 0.1M
Linear volt-ampere curve in solution.
Specific implementation mode
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, people in the art
Member can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Range.
Embodiment 1
(1) by 1mmol melamines, 1mmol niacin and 0.025mmol cobalt acetates be separately added into 6mL, 5mL, 1mL go from
In sub- water, melamine solution, niacin solution and cobalt acetate solution are obtained, these three solution are mixed at 90 DEG C, and acutely
10min is stirred, then cools to room temperature, obtains the plural gel of cobalt.
(2) by the plural gel aging 3d of cobalt in step (1), dry 48 hours are placed in freeze dryer to obtain xerogel,
The high temperature cabonization under the argon gas of high-purity, carburizing temperature are 700 DEG C, and heating rate is 5 DEG C/min, is kept after reaching assigned temperature
Then 2h is washed with 1mol/L hydrochloric acid stirring 6h, is dried overnight in 60 DEG C of vacuum drying ovens, obtains cobalt-nitrogen-doped carbon composite wood
Material, is denoted as Co-N-C, and mapping tests are carried out to the composite material.
Fig. 1, Fig. 2 and mapping test result show：The gel being prepared is ribbon-like fibre, ruptures and shrinks after carbonization,
It is blocking to collapse aggregation, forms cobalt-nitrogen-doped carbon composite material, and cobalt, nitrogen, carbon, oxygen element are evenly distributed in carbon matrix.
Embodiment 2
(1) by 1mmol melamines, 1mmol niacin and 0.025mmol cobalt acetates be separately added into 6mL, 5mL, 1mL go from
In sub- water, melamine solution, niacin solution and cobalt acetate solution are obtained, these three solution are mixed at 90 DEG C, and acutely
10min is stirred, then cools to room temperature, obtains the plural gel of cobalt.
(2) by the plural gel aging 3d of cobalt in step (1), dry 48 hours are placed in freeze dryer to obtain xerogel,
The high temperature cabonization under the argon gas of high-purity, carburizing temperature are 600 DEG C, and heating rate is 5 DEG C/min, is kept after reaching assigned temperature
Then 2h is washed with 1mol/L hydrochloric acid stirring 6h, is dried overnight in 60 DEG C of vacuum drying ovens, obtains cobalt-nitrogen-doped carbon composite wood
Material, is denoted as Co-N-C-1.
Embodiment 3
(1) by 1mmol melamines, 1mmol niacin and 0.025mmol cobalt acetates be separately added into 6mL, 5mL, 1mL go from
In sub- water, melamine solution, niacin solution and cobalt acetate solution are obtained, these three solution are mixed at 90 DEG C, and acutely
10min is stirred, then cools to room temperature, obtains the plural gel of cobalt.
(2) by the plural gel aging 3d of cobalt in step (1), dry 48 hours are placed in freeze dryer to obtain xerogel,
The high temperature cabonization under the argon gas of high-purity, carburizing temperature are 800 DEG C, and heating rate is 5 DEG C/min, is kept after reaching assigned temperature
Then 2h is washed with 1mol/L hydrochloric acid stirring 6h, is dried overnight in 60 DEG C of vacuum drying ovens, obtains cobalt-nitrogen-doped carbon composite wood
Material, is denoted as Co-N-C-2.
Fig. 3 shows：Prepared gel is pyrolyzed not exclusively at 600 DEG C, and degree of graphitization is low, poorly conductive, at 800 DEG C
Pyrolytic graphite degree is higher, and electric conductivity is preferable.
Fig. 4 shows：Embodiment 1, embodiment 2 and cobalt manufactured in the present embodiment-nitrogen-doped carbon composite material have higher
The take-off potential of electro catalytic activity, cyclic voltammetry curve reaches 0.94V, and the half wave potential of linear volt-ampere curve reaches 0.86V, is
The oxygen reduction catalyst of high activity.
Embodiment 4
(1) by 1mmol melamines, 1mmol niacin and 0.017mmol cobalt acetates be separately added into 6mL, 5mL, 1mL go from
In sub- water, melamine solution, niacin solution and cobalt acetate solution are obtained, these three solution are mixed at 90 DEG C, and acutely
10min is stirred, then cools to room temperature, obtains the plural gel of cobalt.
(2) by the plural gel aging 3d of cobalt in step (1), dry 48 hours are placed in freeze dryer to obtain xerogel,
The high temperature cabonization under the argon gas of high-purity, carburizing temperature are 700 DEG C, and heating rate is 5 DEG C/min, is kept after reaching assigned temperature
Then 2h is washed with 1mol/L hydrochloric acid stirring 6h, is dried overnight in 60 DEG C of vacuum drying ovens, obtains cobalt-nitrogen-doped carbon composite wood
Material, is denoted as Co-N-C-3.
Embodiment 5
(1) by 1mmol melamines, 1mmol niacin and 0.005mmol cobalt acetates be separately added into 6mL, 5mL, 1mL go from
In sub- water, melamine solution, niacin solution and cobalt acetate solution are obtained, these three solution are mixed at 90 DEG C, and acutely
10min is stirred, then cools to room temperature, obtains the plural gel of cobalt.
(2) by the plural gel aging 3d of cobalt in step (1), dry 48 hours are placed in freeze dryer to obtain xerogel,
The high temperature cabonization under the argon gas of high-purity, carburizing temperature are 700 DEG C, and heating rate is 5 DEG C/min, is kept after reaching assigned temperature
Then 2h is washed with 1mol/L hydrochloric acid stirring 6h, is dried overnight in 60 DEG C of vacuum drying ovens, obtains cobalt-nitrogen-doped carbon composite wood
Material, is denoted as Co-N-C-4.
Fig. 5 shows：Embodiment 1, embodiment 4 and cobalt manufactured in the present embodiment-nitrogen-doped carbon composite material have higher
Electro catalytic activity.
Claims (9)
1. it is a kind of based on gel pyrolysis cobalt-nitrogen-doped carbon composite material, which is characterized in that the composite material be using cobalt with
Organoligand coordination prepares Gel Precursor, then obtained by high temperature cabonization；Wherein organic ligand is melamine and niacin.
2. a kind of preparation method of cobalt-nitrogen-doped carbon composite material based on gel pyrolysis, including：
(1) melamine, niacin and cobalt acetate are separately added into deionized water, obtain melamine solution, niacin solution and
These three solution are mixed and stirred for by cobalt acetate solution, cooling, obtain the plural gel of cobalt；Wherein melamine, niacin and vinegar
The molar ratio of sour cobalt is 1:1:0~0.05, and cobalt acetate is not 0；A concentration of 0.1~0.2mmol/mL of melamine solution,
A concentration of 0.1~0.3mmol/mL of niacin solution, a concentration of 0.001~0.1mmol/mL of cobalt acetate solution；
(2) dry by the plural gel aging of cobalt in step (1), xerogel is obtained, is carbonized, pickling, re-dry is based on
Cobalt-nitrogen-doped carbon composite material of gel pyrolysis.
3. a kind of preparation method of cobalt-nitrogen-doped carbon composite material based on gel pyrolysis according to claim 2, special
Sign is that mixing temperature is 80-100 DEG C in the step (1)；Mixing time is 8-15min.
4. a kind of preparation method of cobalt-nitrogen-doped carbon composite material based on gel pyrolysis according to claim 2, special
Sign is that ageing time is 2-4d in the step (2).
5. a kind of preparation method of cobalt-nitrogen-doped carbon composite material based on gel pyrolysis according to claim 2, special
Sign is, in the step (2) drying be：Dry 40-50h is placed in freeze dryer.
6. a kind of preparation method of cobalt-nitrogen-doped carbon composite material based on gel pyrolysis according to claim 2, special
Sign is that the technological parameter being carbonized in the step (2) is：Carburizing atmosphere is inert gas, and carburizing temperature is 600~800 DEG C,
Carbonization time is 1-3h, and heating rate is 3~6 DEG C/min.
7. a kind of preparation method of cobalt-nitrogen-doped carbon composite material based on gel pyrolysis according to claim 6, special
Sign is that the inert gas is argon gas.
8. a kind of preparation method of cobalt-nitrogen-doped carbon composite material based on gel pyrolysis according to claim 2, special
Sign is, in the step (2) pickling be：5-7h is stirred with 1mol/L hydrochloric acid.
9. a kind of application of cobalt-nitrogen-doped carbon composite material as described in claim 1 based on gel pyrolysis, feature exist
In for oxygen reduction catalyst.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810392581.6A CN108649237B (en) | 2018-04-27 | 2018-04-27 | Gel pyrolysis-based cobalt-nitrogen doped carbon composite material and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810392581.6A CN108649237B (en) | 2018-04-27 | 2018-04-27 | Gel pyrolysis-based cobalt-nitrogen doped carbon composite material and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108649237A true CN108649237A (en) | 2018-10-12 |
| CN108649237B CN108649237B (en) | 2021-08-10 |
Family
ID=63748336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810392581.6A Active CN108649237B (en) | 2018-04-27 | 2018-04-27 | Gel pyrolysis-based cobalt-nitrogen doped carbon composite material and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108649237B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110247070A (en) * | 2019-07-03 | 2019-09-17 | 北京氦舶科技有限责任公司 | A kind of nitrogen-doped carbon load monoatomic metal composite catalyst and its preparation method and application |
| CN110860303A (en) * | 2019-11-21 | 2020-03-06 | 青岛科技大学 | Preparation method and application of metal and metal carbide reinforced transition metal-nitrogen active site carbon-based electrocatalyst |
| CN111359651A (en) * | 2020-04-26 | 2020-07-03 | 浙江大学 | Transition metal-nitrogen coordinated carbon gel electrocatalyst and preparation method and application thereof |
| CN114023940A (en) * | 2021-11-08 | 2022-02-08 | 厦门大学 | Application of cobalt-nitrogen doped carbon material in positive electrode of all-solid-state lithium-sulfur battery and preparation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104174424A (en) * | 2014-08-19 | 2014-12-03 | 中南大学 | Preparation method of nitrogen-doped graphene aerogel supported non-precious metal oxygen reduction catalyst |
| KR20160110649A (en) * | 2015-03-10 | 2016-09-22 | 한국과학기술원 | Nitrogen and Metal doped Porous Carbon Materials and Method of Manufacturing the Same |
-
2018
- 2018-04-27 CN CN201810392581.6A patent/CN108649237B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104174424A (en) * | 2014-08-19 | 2014-12-03 | 中南大学 | Preparation method of nitrogen-doped graphene aerogel supported non-precious metal oxygen reduction catalyst |
| KR20160110649A (en) * | 2015-03-10 | 2016-09-22 | 한국과학기술원 | Nitrogen and Metal doped Porous Carbon Materials and Method of Manufacturing the Same |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110247070A (en) * | 2019-07-03 | 2019-09-17 | 北京氦舶科技有限责任公司 | A kind of nitrogen-doped carbon load monoatomic metal composite catalyst and its preparation method and application |
| CN110860303A (en) * | 2019-11-21 | 2020-03-06 | 青岛科技大学 | Preparation method and application of metal and metal carbide reinforced transition metal-nitrogen active site carbon-based electrocatalyst |
| CN110860303B (en) * | 2019-11-21 | 2022-08-09 | 青岛科技大学 | Preparation method and application of metal and metal carbide reinforced transition metal-nitrogen active site carbon-based electrocatalyst |
| CN111359651A (en) * | 2020-04-26 | 2020-07-03 | 浙江大学 | Transition metal-nitrogen coordinated carbon gel electrocatalyst and preparation method and application thereof |
| CN111359651B (en) * | 2020-04-26 | 2021-05-14 | 浙江大学 | Transition metal-nitrogen coordinated carbon gel electrocatalyst and preparation method and application thereof |
| CN114023940A (en) * | 2021-11-08 | 2022-02-08 | 厦门大学 | Application of cobalt-nitrogen doped carbon material in positive electrode of all-solid-state lithium-sulfur battery and preparation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108649237B (en) | 2021-08-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Chen et al. | From bimetallic metal-organic framework to porous carbon: high surface area and multicomponent active dopants for excellent electrocatalysis | |
| CN105413730B (en) | A kind of preparation method of nitrogen-doped carbon nanometer pipe parcel cobalt electrocatalytic oxidation reducing material | |
| Jin et al. | Nitrogen-doped carbon xerogel: A novel carbon-based electrocatalyst for oxygen reduction reaction in proton exchange membrane (PEM) fuel cells | |
| CN106159287B (en) | A kind of composite type fuel cell cathode catalyst NGPC/NCNTs and preparation method thereof | |
| CN110911697B (en) | Transition metal/nitrogen-doped porous carbon nanosphere electrocatalyst and preparation method thereof | |
| CN105344369B (en) | The nitrogen co-doped charcoal base oxygen reduction catalyst of cobalt and its preparation and application with three-dimensional graded porous structure | |
| CN109248703B (en) | Loaded Ni3Preparation method of Fe nitrogen-doped carbon nanocomposite material, and obtained material and application thereof | |
| Zhan et al. | Templated growth of Fe/N/C catalyst on hierarchically porous carbon for oxygen reduction reaction in proton exchange membrane fuel cells | |
| CN108649237A (en) | A kind of cobalt-nitrogen-doped carbon composite material and preparation method and application based on gel pyrolysis | |
| JP5153967B2 (en) | Method for producing electrode catalyst for fuel cell | |
| Liu et al. | A novel TiN coated CNTs nanocomposite CNTs@ TiN supported Pt electrocatalyst with enhanced catalytic activity and durability for methanol oxidation reaction | |
| Zhan et al. | Highly dispersed nonprecious metal catalyst for oxygen reduction reaction in proton exchange membrane fuel cells | |
| CN112495408B (en) | Preparation method of electrocatalytic hydrogen evolution nano material | |
| CN112652780B (en) | Fe/Fe 3 Preparation method of C nano-particle loaded porous nitrogen-doped carbon-based oxygen reduction catalyst | |
| 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 | |
| CN108336374B (en) | High-performance ternary Fe-Co-Ni Co-doped nitrogen-containing carbon material and preparation method and application thereof | |
| CN113881965B (en) | Metal nanoparticle supported catalyst with biomass carbon source as template and preparation method and application thereof | |
| CN111659439A (en) | Nitrogen-doped carbon nano composite material loaded with NiS/NiO heterojunction and preparation method and application thereof | |
| Gu et al. | Infrared-assisted synthesis of highly amidized graphene quantum dots as metal-free electrochemical catalysts | |
| CN113594479A (en) | Preparation method of Fe and N co-doped porous carbon zinc air battery catalyst | |
| Rauf et al. | Highly stable N-containing polymer-based Fe/Nx/C electrocatalyst for alkaline anion exchange membrane fuel cell applications | |
| CN113381034B (en) | Preparation method and application of polypyrrole gel loaded copper-phosphorus atom composite material | |
| CN113430554B (en) | Monoatomic nickel-nitrogen coordination co-doped porous carbon/nano zirconia composite electrode and preparation method and application thereof | |
| CN109731599B (en) | 2D oxygen reduction catalyst Fe3O4Preparation method of @ FeNC nanosheet | |
| Cao et al. | Pt/XC-72 catalysts coated with nitrogen-doped carbon (Pt/XC-72@ C–N) for methanol electro-oxidation |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |