CN115025754A - Preparation method of patterned nitrogen and sulfur co-doped graphene aerogel - Google Patents
Preparation method of patterned nitrogen and sulfur co-doped graphene aerogel Download PDFInfo
- Publication number
- CN115025754A CN115025754A CN202111623591.4A CN202111623591A CN115025754A CN 115025754 A CN115025754 A CN 115025754A CN 202111623591 A CN202111623591 A CN 202111623591A CN 115025754 A CN115025754 A CN 115025754A
- Authority
- CN
- China
- Prior art keywords
- sulfur
- nitrogen
- graphene
- doped graphene
- preparation
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/0091—Preparation of aerogels, e.g. xerogels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28047—Gels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/24—Nitrogen compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/182—Graphene
- C01B32/184—Preparation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4806—Sorbents characterised by the starting material used for their preparation the starting material being of inorganic character
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2204/00—Structure or properties of graphene
- C01B2204/20—Graphene characterized by its properties
- C01B2204/32—Size or surface area
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Dispersion Chemistry (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Nanotechnology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention provides a preparation method of a patterned nitrogen and sulfur co-doped graphene aerogel, and belongs to the technical field of graphene aerogel preparation. The preparation method is simple, the clothianidin hydrochloride or the rhodanine is used as a nitrogen source and a sulfur source and added into the graphene oxide dispersion liquid, a formed solid mixture is obtained through drying, and finally the patterned nitrogen-sulfur co-doped graphene is obtained through high-temperature reaction. After the oxidized graphene adsorbing rhodanine or clothianidin hydrochloride molecules is subjected to high-temperature action, not only is the doping of nitrogen and sulfur atoms realized, but also the structure of the graphene is partially recovered, the rapid synthesis of nitrogen and sulfur co-doped graphene under the condition of no metal catalyst is realized, and the product has high purity, large specific surface area and excellent adsorption performance.
Description
Technical Field
The invention relates to the technical field of graphene aerogel preparation, in particular to a preparation method of a patterned nitrogen and sulfur co-doped graphene aerogel.
Background
Graphene has chemical properties similar to graphite, and can adsorb and desorb various atoms and molecules. When the atoms or molecules are used as donors or acceptors, the concentration of graphene carriers can be changed, and graphene can keep good conductivity.
The graphene oxide is a layered material obtained by oxidizing graphite, after bulk phase graphite is treated by fuming concentrated acid solution, a graphene layer is oxidized into hydrophilic graphene oxide, and the distance between graphite layers is from before oxidation
Is increased to
The separated graphene oxide lamellar structure is easily formed through a heating or ultrasonic stripping process in water. After oxidation treatment, the graphite oxide still maintains the layered structure of graphite, but a plurality of oxygen-based functional groups are introduced on each layer of graphene single sheet. The introduction of these oxygen-based functional groups makes the single graphene structure very complex.
Adopt nitrogen sulfur atom to dope graphite alkene, prepare nitrogen sulfur codope graphite alkene aerogel, can further improve its ability such as absorption, catalysis.
Disclosure of Invention
In view of the above, the invention provides a preparation method of a patterned nitrogen and sulfur co-doped graphene aerogel, and the prepared nitrogen and sulfur co-doped graphene product has a relatively high application prospect in the fields of adsorption (water treatment, oil-water separation, gas adsorption), catalyst carriers, composite materials and the like.
The invention aims to provide a preparation method of a patterned nitrogen and sulfur co-doped graphene aerogel, which comprises the following steps:
(1) ultrasonically dispersing graphene oxide into water to obtain a graphene oxide dispersion liquid;
(2) adding the thiamine hydrochloride or rhodanine into the graphene oxide dispersion liquid obtained in the step (1), performing ultrasonic treatment until the graphene oxide dispersion liquid is completely dissolved, pouring the ultrasonic dispersion liquid into a container, and performing freeze drying in a vacuum freeze drying device for 24 hours to obtain a molded solid mixture;
(3) and (3) placing the solid mixture obtained in the step (2) in a high-temperature tube furnace, sealing and introducing nitrogen, heating the tube furnace to 600-800 ℃ according to the heating rate of 5 ℃/min, keeping the temperature for 0.5-2 h, and slowly cooling to room temperature to obtain the patterned nitrogen-sulfur co-doped graphene aerogel.
Preferably, the mass-to-volume ratio of the graphene oxide to the water in the step (1) is 1-2: 1 to 2.
Preferably, the mass ratio of the clothianidin hydrochloride or rhodanine to the graphene oxide in the graphene oxide dispersion liquid in the step (2) is 1: 50.
Preferably, the container in step (2) includes a cylindrical container, a cube-shaped container, and a rectangular parallelepiped-shaped container.
The structure of the graphene oxide adopted by the invention is as shown in formula (I), the structure of the nitrogen and sulfur co-doped graphene is as shown in formula (II), and the synthetic route is as follows:
compared with the prior art, the invention has the following beneficial effects: according to the invention, clothianidin hydrochloride or rhodanine is used as a nitrogen source and a sulfur source, added into graphene oxide dispersion liquid, dried to obtain a formed solid mixture, and subjected to high-temperature reaction to prepare the patterned nitrogen-sulfur co-doped graphene. The micro-morphology of the nitrogen and sulfur co-doped graphene is a typical two-dimensional layered structure, the sheet layer is basically transparent, a large number of folds exist, a large number of holes are reserved after freeze-drying, and the sizes are different, so that the specific surface area of the graphene is greatly increased, and the application research in the aspects of adsorption, catalysis and the like is facilitated.
The preparation method is simple, the graphene oxide adsorbing the rhodanine or the clothianidin hydrochloride molecules not only realizes the doping of nitrogen and sulfur atoms, but also partially recovers the structure of the graphene after the high-temperature action, realizes the rapid synthesis of the nitrogen and sulfur co-doped graphene under the condition of no metal catalyst, and has high product purity, large specific surface area and excellent adsorption performance.
Drawings
Fig. 1 is an X-ray diffraction pattern of a nitrogen and sulfur co-doped graphene aerogel in example 1;
fig. 2 is a scanning electron microscope image of the nitrogen and sulfur co-doped graphene aerogel in example 1;
fig. 3 is an EDX energy spectrum of the nitrogen and sulfur co-doped graphene aerogel in example 1;
fig. 4 is a cylindrical nitrogen and sulfur co-doped graphene aerogel prepared in example 1;
fig. 5 is a cubic nitrogen and sulfur co-doped graphene aerogel prepared in example 2;
fig. 6 is a cuboid-shaped nitrogen and sulfur co-doped graphene aerogel prepared in example 3.
Detailed Description
The present invention will be further described with reference to the following examples.
Example 1
A preparation method of a patterned nitrogen and sulfur co-doped graphene aerogel comprises the following steps:
(1) weighing 50mg of graphite oxide, adding 50mL of water, and performing ultrasonic dispersion for 2 hours to obtain a graphene oxide dispersion liquid;
(2) then weighing 1.0g of thiamine hydrochloride, adding the thiamine hydrochloride into the graphene oxide dispersion liquid obtained in the step (1), and continuing ultrasonic treatment until the thiamine hydrochloride is completely dissolved; pouring the ultrasonic dispersion liquid into a cylindrical container, and placing the container in a vacuum freeze drying device for freeze drying for 24 hours to obtain a cylindrical solid mixture;
(3) and (3) placing the solid mixture obtained in the step (2) in a high-temperature tube furnace, hermetically introducing nitrogen, heating the tube furnace to 800 ℃ at the heating rate of 5 ℃/min, keeping the temperature for 2h, and slowly cooling the tube furnace to room temperature to obtain the cylindrical nitrogen-sulfur co-doped graphene aerogel.
Example 2
A preparation method of a patterned nitrogen and sulfur co-doped graphene aerogel comprises the following steps:
(1) weighing 50mg of graphite oxide, adding 50mL of water, and performing ultrasonic dispersion for 2 hours to obtain a graphene oxide dispersion liquid;
(2) then weighing 1.0g of thiamine hydrochloride, adding the thiamine hydrochloride into the graphene oxide dispersion liquid obtained in the step (1), and continuing ultrasonic treatment until the thiamine hydrochloride is completely dissolved; pouring the ultrasonic dispersion liquid into a cubic container, and freeze-drying in a vacuum freeze-drying device for 24 hours to obtain a cubic solid mixture;
(3) and (3) placing the solid mixture obtained in the step (2) in a high-temperature tubular furnace, hermetically introducing nitrogen, heating the tubular furnace to 700 ℃ at the heating rate of 5 ℃/min, keeping the temperature for 2 hours, and slowly cooling the tubular furnace to room temperature to obtain the cubic nitrogen and sulfur co-doped graphene aerogel.
Example 3
A preparation method of a patterned nitrogen and sulfur co-doped graphene aerogel comprises the following steps:
(1) weighing 50mg of graphite oxide, adding 50mL of water, and performing ultrasonic dispersion for 2 hours to obtain a graphene oxide dispersion liquid;
(2) then weighing 1.0g of thiamine hydrochloride, adding the thiamine hydrochloride into the graphene oxide dispersion liquid obtained in the step (1), and continuing ultrasonic treatment until the thiamine hydrochloride is completely dissolved; pouring the ultrasonic dispersion liquid into a cuboid container, and freeze-drying in a vacuum freeze-drying device for 24 hours to obtain a cuboid solid mixture;
(3) and (3) placing the solid mixture obtained in the step (2) in a high-temperature tube furnace, introducing nitrogen in a sealed manner, heating the tube furnace to 600 ℃ at the heating rate of 5 ℃/min, keeping the temperature for 0.5h, and then slowly cooling the tube furnace to room temperature to obtain the cuboid-shaped nitrogen-sulfur co-doped graphene aerogel.
An X-ray diffraction pattern of the nitrogen and sulfur co-doped graphene aerogel prepared in example 1 is shown in fig. 1, and a characteristic diffraction peak of the nitrogen and sulfur co-doped graphene in fig. 1 is located near 26 °, and the peak is a characteristic peak of a (002) crystal face of a graphene material, which indicates that graphene oxide is reduced after a high-temperature reaction, and a structure of graphene is partially recovered. In addition, other diffraction peaks do not appear in the spectrum, which indicates that the synthesized nitrogen-sulfur co-doped graphene is a pure graphene product, does not contain any impurity, and has high product purity.
The scanning electron microscope image of the nitrogen and sulfur co-doped graphene aerogel prepared in example 1 is shown in fig. 2, and fig. 2 can visually observe the microscopic morphology of the nitrogen and sulfur co-doped graphene, which is a typical two-dimensional layered structure, the lamellar layer is substantially transparent, a large number of folds exist, a large number of holes are reserved after freeze-drying, and the sizes are different, so that the specific surface area is greatly increased, and the BET specific surface area is 115.7m 2 The concentration is/g, which is beneficial to the application research in the aspects of adsorption, catalysis and the like.
The elemental composition of the nitrogen and sulfur co-doped graphene aerogel prepared in example 1 was analyzed by EDX spectroscopy, and the results are shown in fig. 3 and table 1. In fig. 3, significant characteristic peaks of four elements of carbon, nitrogen, oxygen, and sulfur appear, and other impurity elements do not appear, which indicates that nitrogen and sulfur atoms successfully enter the graphene lattice, but the product still mainly contains carbon element, accounting for 77.6% (mass percent), and the nitrogen and sulfur contents are 10.8% and 6.6%, respectively. Therefore, after the oxidized graphene adsorbing the rhodanine or the clothianidin hydrochloride molecules is subjected to high-temperature action, not only is the doping of nitrogen and sulfur atoms realized, but also the structure of the graphene is partially recovered, the rapid synthesis of the nitrogen and sulfur co-doped graphene under the condition of no metal catalyst is realized, and the product has high purity, large specific surface area and excellent adsorption performance.
TABLE 1
| Element(s) | By weight% | Atom% |
| CK | 77.59 | 82.94 |
| NK | 10.8 | 9.89 |
| OK | 6.55 | 5.25 |
| SK | 5.06 | 2.02 |
The cylindrical nitrogen and sulfur co-doped graphene aerogel prepared in example 1 is shown in fig. 4; the cubic-shaped nitrogen and sulfur co-doped graphene aerogel prepared in example 2 is shown in fig. 5; the cuboid-shaped nitrogen and sulfur co-doped graphene aerogel prepared in example 3 is shown in fig. 6.
In the embodiment of the invention, the proportion of the raw material graphite oxide and the raw material of the hydrochloric acid is variable, the hydrochloric acid is replaced by rhodanine molecules, the reaction temperature and the reaction time are adjustable, and the shape can be determined according to the shape of the mould.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The preparation method of the patterned nitrogen and sulfur co-doped graphene aerogel is characterized by comprising the following steps of:
(1) ultrasonically dispersing graphene oxide into water to obtain a graphene oxide dispersion liquid;
(2) adding the thiamine hydrochloride or rhodanine into the graphene oxide dispersion liquid obtained in the step (1), performing ultrasonic treatment until the graphene oxide dispersion liquid is completely dissolved, pouring the ultrasonic dispersion liquid into a container, and performing freeze drying in a vacuum freeze drying device for 24 hours to obtain a formed solid mixture;
(3) and (3) placing the solid mixture obtained in the step (2) in a high-temperature tubular furnace, hermetically introducing nitrogen, heating the tubular furnace to 600-800 ℃ at a heating rate of 5 ℃/min, keeping the temperature for 0.5-2 h, and then slowly cooling to room temperature to obtain the patterned nitrogen-sulfur co-doped graphene aerogel.
2. The preparation method of the patterned nitrogen and sulfur co-doped graphene aerogel according to claim 1, wherein the mass-to-volume ratio of the graphene oxide and water in the step (1) is 1-2: 1 to 2.
3. The preparation method of the patterned nitrogen and sulfur co-doped graphene aerogel according to claim 1, wherein the mass ratio of the thiaamine hydrochloride or rhodanine to the graphene oxide in the graphene oxide dispersion liquid in the step (2) is 1: 50.
4. The method for preparing the patterned nitrogen and sulfur co-doped graphene aerogel according to claim 1, wherein the container in the step (2) comprises a cylindrical container, a square container and a rectangular parallelepiped container.
5. The patterned nitrogen and sulfur co-doped graphene aerogel is characterized by being prepared according to the preparation method of any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111623591.4A CN115025754A (en) | 2021-12-28 | 2021-12-28 | Preparation method of patterned nitrogen and sulfur co-doped graphene aerogel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111623591.4A CN115025754A (en) | 2021-12-28 | 2021-12-28 | Preparation method of patterned nitrogen and sulfur co-doped graphene aerogel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115025754A true CN115025754A (en) | 2022-09-09 |
Family
ID=83118076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111623591.4A Pending CN115025754A (en) | 2021-12-28 | 2021-12-28 | Preparation method of patterned nitrogen and sulfur co-doped graphene aerogel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115025754A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104984728A (en) * | 2015-07-08 | 2015-10-21 | 常州大学 | Method for synthesizing nitrogen-doped graphene hydrogel in one step and using nitrogen-doped graphene hydrogel for electrically adsorbing heavy metal ions in water |
| CN106396031A (en) * | 2016-06-28 | 2017-02-15 | 常州大学 | One-step synthesis method of nitrogen-sulfur codoped graphene aerogel and zinc ion electro-adsorption removing by utilizing the aerogel |
| CN106629694A (en) * | 2016-12-23 | 2017-05-10 | 华中科技大学 | Preparation method of multielement-doped three-dimensional porous graphene aerogel |
| KR101858011B1 (en) * | 2017-08-30 | 2018-05-15 | 한국세라믹기술원 | Manufacturing method of nitrogen-doped activated carbon |
| WO2018095285A1 (en) * | 2016-11-23 | 2018-05-31 | Grst International Limited | Method of preparing anode slurry for secondary battery |
| CN108439372A (en) * | 2018-02-07 | 2018-08-24 | 山东大学 | Sulfur and nitrogen co-doped graphene-based aeroge of one kind and preparation method thereof |
| CN108878914A (en) * | 2018-06-20 | 2018-11-23 | 西北工业大学 | Oxygen reduction catalyst agent and preparation method thereof based on nitrogen-doped graphene aeroge |
| CN111659444A (en) * | 2020-06-20 | 2020-09-15 | 珠海复旦创新研究院 | Carbon-based limited-area interface supported palladium single-atom catalyst and preparation method thereof |
| CN112174127A (en) * | 2020-09-29 | 2021-01-05 | 江苏福瑞士电池科技有限公司 | Nitrogen-sulfur double-doped graphene/graphite composite material, preparation method and application |
-
2021
- 2021-12-28 CN CN202111623591.4A patent/CN115025754A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104984728A (en) * | 2015-07-08 | 2015-10-21 | 常州大学 | Method for synthesizing nitrogen-doped graphene hydrogel in one step and using nitrogen-doped graphene hydrogel for electrically adsorbing heavy metal ions in water |
| CN106396031A (en) * | 2016-06-28 | 2017-02-15 | 常州大学 | One-step synthesis method of nitrogen-sulfur codoped graphene aerogel and zinc ion electro-adsorption removing by utilizing the aerogel |
| WO2018095285A1 (en) * | 2016-11-23 | 2018-05-31 | Grst International Limited | Method of preparing anode slurry for secondary battery |
| CN106629694A (en) * | 2016-12-23 | 2017-05-10 | 华中科技大学 | Preparation method of multielement-doped three-dimensional porous graphene aerogel |
| KR101858011B1 (en) * | 2017-08-30 | 2018-05-15 | 한국세라믹기술원 | Manufacturing method of nitrogen-doped activated carbon |
| CN108439372A (en) * | 2018-02-07 | 2018-08-24 | 山东大学 | Sulfur and nitrogen co-doped graphene-based aeroge of one kind and preparation method thereof |
| CN108878914A (en) * | 2018-06-20 | 2018-11-23 | 西北工业大学 | Oxygen reduction catalyst agent and preparation method thereof based on nitrogen-doped graphene aeroge |
| CN111659444A (en) * | 2020-06-20 | 2020-09-15 | 珠海复旦创新研究院 | Carbon-based limited-area interface supported palladium single-atom catalyst and preparation method thereof |
| CN112174127A (en) * | 2020-09-29 | 2021-01-05 | 江苏福瑞士电池科技有限公司 | Nitrogen-sulfur double-doped graphene/graphite composite material, preparation method and application |
Non-Patent Citations (4)
| Title |
|---|
| MAHIMA KHANDELWAL ET AL.: "Chemically controlled in-situ growth of cobalt oxide microspheres on N, S-codoped reduced graphene oxide as an efficient electrocatalyst for oxygen reduction reaction", 《JOURNAL OF POWER SOURCES》, vol. 407, pages 71 * |
| ZHIMIN LUO ER AL.: "Preparation of Cobalt Sulfide Nanoparticle-Decorated Nitrogen and Sulfur Co-Doped Reduced Graphene Oxide Aerogel Used as a Highly Efficient Electrocatalyst for Oxygen Reduction Reaction", 《SMALL》, vol. 12, no. 43, pages 5920 - 5926 * |
| 张宇翔等: "水热法制备掺氮石墨烯-Ag纳米材料及其对对硝基苯胺的催化还原", 《中国化学会第十三届全国分析化学年会论文集（二）》, pages 1517 * |
| 张梓轩等: "石墨烯气凝胶的制备及电化学性能的研究", 《内蒙古民族大学学报（自然科学版）》, vol. 35, no. 04, pages 281 - 285 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107459029B (en) | Nitrogen/metal atom doped hollow polyhedral nano carbon shell material and preparation method thereof | |
| Li et al. | Mechanochemical synthesis of Cu-BTC@ GO with enhanced water stability and toluene adsorption capacity | |
| Kairi et al. | Recent trends in graphene materials synthesized by CVD with various carbon precursors | |
| Chai et al. | In situ fabrication of CdMoO4/g-C3N4 composites with improved charge separation and photocatalytic activity under visible light irradiation | |
| Wang et al. | Shape-and phase-controlled synthesis of In2O3 with various morphologies and their gas-sensing properties | |
| Yang | Hydrogen storage by alkali-doped carbon nanotubes–revisited | |
| Raidongia et al. | Synthesis, structure and properties of homogeneous BC 4 N nanotubes | |
| CN106517171B (en) | A kind of preparation method of graphene aerogel | |
| CN111266089A (en) | Metal organic framework composite material and preparation method and application thereof | |
| Yang et al. | Shape-controlled synthesis and photocatalytic activity of In2O3 nanostructures derived from coordination polymer precursors | |
| Liu et al. | Highly efficient synthesis of hexagonal boron nitride short fibers with adsorption selectivity | |
| Kar et al. | Synthesis of highly oriented iron sulfide nanowires through solvothermal process | |
| Lu et al. | Combustion synthesis of graphene for water treatment | |
| CN104118870A (en) | Preparation method of nitrogen-doped graphene and nitrogen-doped graphene | |
| Li et al. | Advances in catalytic elimination of atmospheric pollutants by two-dimensional transition metal oxides | |
| KR101419340B1 (en) | Preparation method of Graphite oxide and graphene nanosheet | |
| CN115025754A (en) | Preparation method of patterned nitrogen and sulfur co-doped graphene aerogel | |
| CN103449414A (en) | Preparation method of graphene having porous structure | |
| CN105399079A (en) | Synthetic method of sulfur-doped graphene | |
| CN111994900A (en) | Method for growing large-area few-layer nitrogen-doped graphene by using small molecules | |
| CN114686986A (en) | SnSe2Method for producing single crystal | |
| CN107354446B (en) | A kind of method that chemical gaseous phase synthesizes ultra-thin carbon nanosheet | |
| Singh et al. | Green synthesis and characterizations of citric acid-functionalized graphene oxide via electrochemical method: In situ surface modification using citric acid | |
| Diaz-Droguett et al. | Gas effects on the chemical and structural characeristics of porous MoO3 and MoO3− x grown by vapor condensation in helium and hydrogen | |
| Wang et al. | Delaminated microporous aluminophosphate-filled polyvinyl alcohol membrane for pervaporation of aqueous alcohol solutions |
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 |