CN105480975A - Method for preparing high-specific-surface-area porous carbon with hemp stems as carbon source - Google Patents
Method for preparing high-specific-surface-area porous carbon with hemp stems as carbon source Download PDFInfo
- Publication number
- CN105480975A CN105480975A CN201610104347.XA CN201610104347A CN105480975A CN 105480975 A CN105480975 A CN 105480975A CN 201610104347 A CN201610104347 A CN 201610104347A CN 105480975 A CN105480975 A CN 105480975A
- Authority
- CN
- China
- Prior art keywords
- porous carbon
- mass ratio
- chinese
- carbon
- surface area
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/14—Pore volume
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/16—Pore diameter
- C01P2006/17—Pore diameter distribution
Abstract
The invention discloses a method for preparing high-specific-surface-area porous carbon with hemp stems as a carbon source, and belongs to the field of nano-carbon material preparing. According to the method, the agricultural waste hemp stems serve as the carbon source, and the method aims at solving the problem that existing hemp stem active carbon is low in specific surface area. The method includes the following steps that 1, hemp stem cores are pretreated into powder, and the hemp stem core power is obtained; 2, the hemp stem core powder obtained in the step 1 is added into a compounded catalyst solution, stirred under the condition of 80-100 DEG C till water is evaporated to be dry and dried, and a compound precursor is obtained; 3, the compound precursor prepared in the step 2 is subjected to high-temperature carbonization heat treatment in the inert gas atmosphere environment; 4, then acid cleaning is carried out, a product is centrifugally separated, then washed with water to be neutral and dried, and the porous carbon is obtained. The method has the advantages that cost is low, the technology is simple, and the high-specific-surface-area porous carbon can be prepared; the high-specific-surface-area porous carbon is used as a hydrogen storage material, a catalyst carrier, an electrode material and the like.
Description
Technical field
The invention belongs to nano-carbon material preparing technical field; Be specifically related to a kind of with Chinese hemp stalk for carbon source prepares the method for high specific surface area porous carbon.
Background technology
Biological material, if maize straw, straw stalk, pine needle, pine nut shell, Exocarpium cocois (Cocos nucifera L), palm bark and bagasse etc. are the renewable resourcess be available anywhere.Therefore, the comprehensive development and utilization of this kind of material obtains the extensive concern of people.Main component is Mierocrystalline cellulose, the biological material of hemicellulose and xylogen produces the extraordinary carbon source of gac.With cheap biological material for gac prepared by raw material, and application is launched to it, significant for environmental improvement.
Chinese fiber crops have long plantation history, are be used for the natural fiber of fabric the earliest.At present, Chinese hemp stalk is mainly used in extracting flaxen fiber and manufactures textiles.The dress ornament that china-hemp fibers is made has the advantages such as moisture absorption, ventilative, heat dispersion is good.And discarded Chinese Kenaf Core Buffer causes huge waste.
The chemical constitution of hemp stalk core and loose porous unique texture become and are a kind ofly suitable as very much the raw material preparing activated carbon from activated sludge.At present, to the research and development of Chinese hemp stalk gac mainly for low value-added environmental-protection adsorption material.
Therefore, research and development may be used for the high added value industries such as hydrogen storage material, support of the catalyst and electrode materials, and the Chinese hemp stalk porous carbon with high-specific surface area is the research direction having development prospect.Especially in electrode materials, have huge application and development potentiality, the Sustainable development be expected to for the energy provides solution route.
Summary of the invention
It take macropore as problems such as the main specific surface area caused is low, severe reaction conditions, production security differences that the present invention will solve existing Chinese hemp stalk gac.The object of the present invention is to provide a kind of high-specific surface area Chinese hemp stalk porous carbon materials that can be used as hydrogen storage material, support of the catalyst or electrode materials.Present invention also offers a kind of with Chinese hemp stalk for carbon source prepares the method for the biomass porous carbon of high-specific surface area.The inventive method selects green non-poisonous catalyst compounded solution, adopts the method for synchronous charing and activation to prepare Chinese hemp stalk porous carbon.Reaction conditions is gentle, and security is high, is applicable to a large amount of production.
A kind of method preparing high specific surface area porous carbon for carbon source with Chinese hemp stalk of the present invention is carried out in the steps below:
Step one, Chinese Kenaf Core Buffer pre-treatment powdered, namely obtain Chinese Kenaf Core Buffer powder;
Step 2, Chinese Kenaf Core Buffer powder step one obtained add in catalyst compounded solution, are stirred to water evaporate to dryness under 80 ~ 100 DEG C of conditions, dry; Obtain composite precursor;
Step 3, composite precursor high temperature carbonization thermal treatment under inert gas atmosphere environment prepared by step 2;
Step 4, then acid cleaning, wash with water to neutrality after centrifugation again, dry, namely obtain porous carbon;
Wherein, the catalyst compounded solution described in step 2 is mixed with distilled water by two in alkali metal hydroxide kind; Or to be mixed with by a kind of and distilled water in a kind of and alkali-metal carbonate in alkali metal hydroxide; Or to be mixed with by two in alkali metal chloride kind and distilled water.
In catalyst compounded solution described in above-mentioned step 2, the proportioning of solute is as follows: the mass ratio of KOH and NaOH is (1 ~ 3): 1; Or KOH and K
2cO
3mass ratio be (1 ~ 3): 1; Or KOH and Na
2cO
3mass ratio be (1 ~ 3): 1; Or NaOH and K
2cO
3mass ratio be (1 ~ 4): 1; Or NaOH and Na
2cO
3mass ratio be (1 ~ 4): 1; Or ZnCl
2with FeCl
3mass ratio be (2 ~ 5): 1; Or ZnCl
2with AlCl
3mass ratio be (2 ~ 5): 1; Or ZnCl
2with MgCl
2mass ratio be (2 ~ 5): 1; Or ZnCl
2with CoCl
2mass ratio be (2 ~ 5): 1; Or ZnCl
2with NiCl
2mass ratio be (2 ~ 5): 1.
In step one, pretreated step is as follows: be crushed to Powdered by the Chinese Kenaf Core Buffer removing bast, under 100 ~ 120 DEG C of conditions, dry 10 ~ 24h.
In catalyst compounded solution described in step 2, the mass ratio of solute and solvent is (1 ~ 40): 100.
The mass ratio of the Chinese Kenaf Core Buffer powder described in step 3 and catalyst compounded solution is (5 ~ 40): 100
In step 2, bake out temperature is 100 ~ 120 DEG C, and drying time is 18 ~ 24h.
Rare gas element in step 3 described in step 4 is nitrogen or argon gas.
In step 3, high temperature carbonization thermal treatment is completed by following step: be heated to 500 ~ 1200 DEG C with the temperature rise rate of 5 ~ 20 DEG C/min, and constant temp. heating process 2 ~ 6h, naturally cools to room temperature subsequently.
Acid cleaning is carried out with dilute hydrochloric acid, dilute sulphuric acid or dust technology in step 4.
Bake out temperature described in step 4 is 100 ~ 120 DEG C, and drying time is 6 ~ 12h.
The present invention adopts catalyst compounded, and the carrying out reacted under promoting high temperature, forms pore passage structure new in a large number.
Porous carbon prepared by the inventive method has uniform meso-hole structure; Porous carbon prepared by the inventive method has higher specific surface area compared with hemp stalk gac.Porous carbon prepared by the inventive method is used as hydrogen storage material, support of the catalyst; And be used as the electrode materials of ultracapacitor.
Method of the present invention has the features such as cost is low, technique is simple.
Accompanying drawing explanation
The scanning electron microscope diagram (magnification × 35000) of the hemp stalk porous carbon of Fig. 1 prepared by embodiment three;
The scanning electron microscope diagram (magnification × 90000) of the hemp stalk porous carbon of Fig. 2 prepared by embodiment three;
Fig. 3 is the nitrogen adsorption desorption isotherm of hemp stalk porous carbon prepared by embodiment three;
Fig. 4 is the hemp stalk porous carbon of embodiment three preparation.NLDFT pore size distribution curve.
Embodiment
By embodiment below, the present invention is described in further details, but protection scope of the present invention is not limited to described content.
Embodiment one: in present embodiment, a kind of method preparing high specific surface area porous carbon for carbon source with Chinese hemp stalk is carried out in the steps below:
Step one, the Chinese Kenaf Core Buffer removing bast is crushed to Powdered, after then drying 24h under 105 DEG C of conditions, obtains Chinese Kenaf Core Buffer powder.
Step 2, Chinese Kenaf Core Buffer powder 20g step one obtained add in the catalyst compounded solution of 100ml, be stirred to water evaporate to dryness, dry 24h under 105 DEG C of conditions under 80 DEG C of conditions; Obtain composite precursor;
Step 3, the composite precursor step 2 prepared are under nitrogen atmosphere environment, and be heated to 900 DEG C with the temperature rise rate of 10 DEG C/min, constant temp. heating process 2h, naturally cools to room temperature subsequently;
Step 4, then use 1mol/L hydrochloric acid cleaning cleaning, wash with water to neutrality after centrifugation again, dry 12h, namely obtain porous carbon under 105 DEG C of conditions;
Wherein, the catalyst compounded solution preparation method described in step 2 is: by 10gZnCl
2and 5gCoCl
2add in 100ml water, stir 30min, obtain catalyst compounded solution.
The scanning electron microscope diagram sheet of the hemp stalk porous carbon that present embodiment prepares is similar to the scanning electron microscope diagram of embodiment three.Porous carbon surface prepared by present embodiment method has a large amount of aperture to be less than the mesoporous of 10nm.The nitrogen adsorption desorption isotherm of the hemp stalk porous carbon that present embodiment prepares is similar with NLDFT pore size distribution curve to the nitrogen adsorption desorption isotherm of embodiment three with NLDFT pore size distribution curve.Specific surface area is 1907.38m
2/ g, total hole volume is 0.92cm
3/ g, pore size distribution is 2.07nm.
Embodiment two: in present embodiment, a kind of method preparing high specific surface area porous carbon for carbon source with Chinese hemp stalk is carried out in the steps below:
Step one, the Chinese Kenaf Core Buffer removing bast is crushed to Powdered, after then drying 24h under 105 DEG C of conditions, obtains Chinese Kenaf Core Buffer powder.
Step 2, Chinese Kenaf Core Buffer powder 30g step one obtained add in the catalyst compounded solution of 100ml, be stirred to water evaporate to dryness, dry 24h under 105 DEG C of conditions under 80 DEG C of conditions; Obtain composite precursor;
Step 3, the composite precursor step 2 prepared are under nitrogen atmosphere environment, and be heated to 900 DEG C with the temperature rise rate of 5 DEG C/min, constant temp. heating process 2h, naturally cools to room temperature subsequently;
Step 4, then use 1mol/L hydrochloric acid cleaning cleaning, wash with water to neutrality after centrifugation again, dry 12h, namely obtain porous carbon under 105 DEG C of conditions;
Wherein, the catalyst compounded solution preparation method described in step 2 is: by 10gZnCl
2and 5gNiCl
2add in 100ml water, stir 30min, obtain catalyst compounded solution.
The scanning electron microscope diagram sheet of the hemp stalk porous carbon that present embodiment prepares is similar to the scanning electron microscope diagram of embodiment three.Porous carbon surface has a large amount of aperture to be less than the mesoporous of 20nm.The nitrogen adsorption desorption isotherm of the hemp stalk porous carbon that present embodiment two prepares is similar with NLDFT pore size distribution curve to the nitrogen adsorption desorption isotherm of embodiment three with NLDFT pore size distribution curve.Specific surface area is 1892.82m
2/ g, total hole volume is 0.89cm
3/ g, pore size distribution is 1.89nm.
Embodiment three: in present embodiment, a kind of method preparing high specific surface area porous carbon for carbon source with Chinese hemp stalk is carried out in the steps below:
Step one, the Chinese Kenaf Core Buffer removing bast is crushed to Powdered, after then drying 24h under 105 DEG C of conditions, obtains Chinese Kenaf Core Buffer powder.
Step 2, Chinese Kenaf Core Buffer powder 30g step one obtained add in the catalyst compounded solution of 100ml, be stirred to water evaporate to dryness, dry 24h under 105 DEG C of conditions under 80 DEG C of conditions; Obtain composite precursor;
Step 3, the composite precursor step 2 prepared are under nitrogen atmosphere environment, and be heated to 800 DEG C with the temperature rise rate of 5 DEG C/min, constant temp. heating process 2h, naturally cools to room temperature subsequently;
Step 4, then use 1mol/L hydrochloric acid cleaning cleaning, wash with water to neutrality after centrifugation again, dry 12h, namely obtain porous carbon under 105 DEG C of conditions;
Wherein, the catalyst compounded solution preparation method described in step 2 is: by 30gKOH and 20gK
2cO
3add in 100ml water, stir 30min, obtain catalyst compounded solution.
As shown in Figure 1, porous carbon surface defines a large amount of pore passage structures to the scanning electron microscope diagram sheet of the hemp stalk porous carbon that present embodiment three prepares.Accompanying drawing 2 is the partial enlargement picture of accompanying drawing 1 scanning electron microscopic picture, and aperture mesoporous is as seen from the figure less than 30nm.The nitrogen adsorption desorption isotherm of the hemp stalk porous carbon that present embodiment three prepares and NLDFT pore size distribution curve are as shown in Figure 3.Specific surface area is 2272.39m
2/ g, total hole volume is 1.11cm
3/ g, pore size distribution is 2.59nm.This is because, KOH activates and etches the carbon in Chinese hemp stalk in roasting process, form distinctive vesicular structure, reactional equation is: 4KOH+C → K
2cO
3+ K
2o+2H
2↑.In high-temperature process, KOH and K
2cO
3also with following high-temperature decomposition reaction: 2KOH → K
2o+H
2o ↑ and K
2cO
3→ K
2o+CO
2↑.Therefore, in reactivation process, reacted by KOH and carbon on the one hand and generate K
2cO
3and develop hole, and meanwhile, the K added
2cO
3decompose the K produced
2o and CO
2also the formation of pore structure can be promoted.
Table 1 different K OH and K
2cO
3mass ratio obtain the performance perameter of porous carbon
| KOH and K 2CO 3Mass ratio | Specific surface area (m 2/g) | Total hole volume (cm 3/g) | Pore size distribution (nm) |
| 2:1 | 2136.77 | 1.05 | 2.37 |
| 1.5:1 | 2272.39 | 1.11 | 2.59 |
| 1:1 | 1938.52 | 1.02 | 2.41 |
As shown in Table 1, KOH and K
2cO
3mass ratio to be that the condition of 1.5:1 obtains specific surface area maximum.
Embodiment four: in present embodiment, a kind of method preparing high specific surface area porous carbon for carbon source with Chinese hemp stalk is carried out in the steps below:
Step one, the Chinese Kenaf Core Buffer removing bast is crushed to Powdered, after then drying 24h under 105 DEG C of conditions, obtains Chinese Kenaf Core Buffer powder.
Step 2, Chinese Kenaf Core Buffer powder 30g step one obtained add in the catalyst compounded solution of 100ml, be stirred to water evaporate to dryness, dry 24h under 105 DEG C of conditions under 80 DEG C of conditions; Obtain composite precursor;
Step 3, the composite precursor step 2 prepared are under nitrogen atmosphere environment, and be heated to 800 DEG C with the temperature rise rate of 5 DEG C/min, constant temp. heating process 2h, naturally cools to room temperature subsequently;
Step 4, then use 1mol/L hydrochloric acid cleaning cleaning, wash with water to neutrality after centrifugation again, dry 12h, namely obtain porous carbon under 105 DEG C of conditions;
Wherein, the catalyst compounded solution preparation method described in step 2 is: added by 30gKOH and 15gNaOH in 100ml water, stirs 30min, obtains catalyst compounded solution.
The scanning electron microscope diagram sheet of the hemp stalk porous carbon that present embodiment method prepares is similar to the scanning electron microscope diagram of embodiment three.Porous carbon surface has a large amount of aperture to be less than the mesoporous of 30nm.The nitrogen adsorption desorption isotherm of the hemp stalk porous carbon that present embodiment prepares is similar with NLDFT pore size distribution curve to the nitrogen adsorption desorption isotherm of embodiment three with NLDFT pore size distribution curve.Specific surface area is 2035.32m
2/ g, total hole volume is 1.09cm
3/ g, pore size distribution is 2.12nm.
Claims (10)
1. with Chinese hemp stalk for carbon source prepares the method for high specific surface area porous carbon, it is characterized in that the method is carried out in the steps below:
Step one, Chinese Kenaf Core Buffer pre-treatment powdered, namely obtain Chinese Kenaf Core Buffer powder;
Step 2, Chinese Kenaf Core Buffer powder step one obtained add in catalyst compounded solution, are stirred to water evaporate to dryness under 80 ~ 100 DEG C of conditions, dry; Obtain composite precursor;
Step 3, composite precursor high temperature carbonization thermal treatment under inert gas atmosphere environment prepared by step 2;
Step 4, then acid cleaning, wash with water to neutrality after centrifugation again, dry, namely obtain porous carbon;
Wherein, the catalyst compounded solution described in step 2 is mixed with distilled water by two in alkali metal hydroxide kind; Or to be mixed with by a kind of and distilled water in a kind of and alkali-metal carbonate in alkali metal hydroxide; Or to be mixed with by two in alkali metal chloride kind and distilled water.
2. according to claim 1 a kind of with Chinese hemp stalk for carbon source prepares the method for high specific surface area porous carbon, it is characterized in that the proportioning of solute in the catalyst compounded solution described in step 2 is as follows: the mass ratio of KOH and NaOH is (1 ~ 3): 1; Or KOH and K
2cO
3mass ratio be (1 ~ 3): 1; Or KOH and Na
2cO
3mass ratio be (1 ~ 3): 1; Or NaOH and K
2cO
3mass ratio be (1 ~ 4): 1; Or NaOH and Na
2cO
3mass ratio be (1 ~ 4): 1; Or ZnCl
2with FeCl
3mass ratio be (2 ~ 5): 1; Or ZnCl
2with AlCl
3mass ratio be (2 ~ 5): 1; Or ZnCl
2with MgCl
2mass ratio be (2 ~ 5): 1; Or ZnCl
2with CoCl
2mass ratio be (2 ~ 5): 1; Or ZnCl
2with NiCl
2mass ratio be (2 ~ 5): 1.
3. according to claim 1 a kind of with Chinese hemp stalk for carbon source prepares the method for high specific surface area porous carbon, it is characterized in that in step one, pretreated step is as follows: be crushed to Powdered by the Chinese Kenaf Core Buffer removing bast, under 100 ~ 120 DEG C of conditions, dry 10 ~ 24h.
4. according to claim 1 a kind of with Chinese hemp stalk for carbon source prepares the method for high specific surface area porous carbon, it is characterized in that the mass ratio of solute and solvent in the catalyst compounded solution described in step 2 is for (1 ~ 40): 100.
5. according to claim 1 a kind of with Chinese hemp stalk for carbon source prepares the method for high specific surface area porous carbon, it is characterized in that the mass ratio of the Chinese Kenaf Core Buffer powder described in step 3 and catalyst compounded solution is for (5 ~ 40): 100.
6. according to claim 1 a kind of with Chinese hemp stalk for carbon source prepares the method for high specific surface area porous carbon, it is characterized in that in step 2, bake out temperature is 100 ~ 120 DEG C, drying time is 18 ~ 24h.
7. according to claim 1 a kind of with Chinese hemp stalk for carbon source prepares the method for high specific surface area porous carbon, it is characterized in that the rare gas element in step 3 described in step 4 is nitrogen or argon gas.
8. according to claim 1 a kind of with Chinese hemp stalk for carbon source prepares the method for high specific surface area porous carbon, it is characterized in that in step 3, high temperature carbonization thermal treatment is completed by following step: be heated to 500 ~ 1200 DEG C with the temperature rise rate of 5 ~ 20 DEG C/min, constant temp. heating process 2 ~ 6h, naturally cools to room temperature subsequently.
9. according to claim 1 a kind of with Chinese hemp stalk for carbon source prepares the method for high specific surface area porous carbon, it is characterized in that carrying out acid cleaning with dilute hydrochloric acid, dilute sulphuric acid or dust technology in step 4.
10. according to claim 1 a kind of with Chinese hemp stalk for carbon source prepares the method for high specific surface area porous carbon, it is characterized in that the bake out temperature described in step 4 is 100 ~ 120 DEG C, drying time is 6 ~ 12h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610104347.XA CN105480975A (en) | 2016-02-25 | 2016-02-25 | Method for preparing high-specific-surface-area porous carbon with hemp stems as carbon source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610104347.XA CN105480975A (en) | 2016-02-25 | 2016-02-25 | Method for preparing high-specific-surface-area porous carbon with hemp stems as carbon source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105480975A true CN105480975A (en) | 2016-04-13 |
Family
ID=55668310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610104347.XA Pending CN105480975A (en) | 2016-02-25 | 2016-02-25 | Method for preparing high-specific-surface-area porous carbon with hemp stems as carbon source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105480975A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106520750A (en) * | 2016-12-08 | 2017-03-22 | 浙江海洋大学 | Immobilized microbial repairing agent for spilled oil and preparation method thereof |
| CN106803595A (en) * | 2016-12-28 | 2017-06-06 | 深圳大学 | A kind of carbon-based oxygen reduction catalyst and preparation method and application |
| CN108862274A (en) * | 2018-07-17 | 2018-11-23 | 华南理工大学 | A kind of preparation method and applications of cellulose base level porous carbon materials |
| CN110404040A (en) * | 2019-07-03 | 2019-11-05 | 李卫 | It is a kind of using Chinese fiber crops as composition of the treatment rheumatic bone joint pain of raw material and its gel and preparation method thereof |
| CN110844880A (en) * | 2019-11-05 | 2020-02-28 | 华北电力大学 | Preparation method of fluorine-doped porous carbon nanofiber-loaded alkali metal hydrogen storage material |
| CN111487292A (en) * | 2020-05-18 | 2020-08-04 | 黑龙江省科学院高技术研究院 | Preparation method and application of hemp stalk biomass graphene-based sulfur-doped tin oxide composite gas-sensitive material |
| CN111747410A (en) * | 2019-03-26 | 2020-10-09 | 天津科技大学 | Method for preparing hemp stalk core-based carbon material by hydrothermal method |
| CN111747409A (en) * | 2019-03-26 | 2020-10-09 | 天津科技大学 | Preparation method of phosphotungstic acid catalyzed hemp stem core hydrothermal carbon material |
| CN115784227A (en) * | 2022-11-07 | 2023-03-14 | 河南农业大学 | Method for preparing porous carbon from agriculture and forestry biomass |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101190789A (en) * | 2007-04-19 | 2008-06-04 | 兰州理工大学 | Method for preparing coke breeze activated carbon from waste coke breeze |
| CN101428794A (en) * | 2008-12-01 | 2009-05-13 | 海南大学 | Preparation of coir fiber based activated carbon with high specific surface area |
| CN103318886A (en) * | 2013-06-28 | 2013-09-25 | 广西大学 | Method for preparing activated carbon from Girardinia straws |
| CN104692379A (en) * | 2014-12-24 | 2015-06-10 | 无限极（中国）有限公司 | Hemp-stem active carbon and preparation method, forming method and application thereof |
-
2016
- 2016-02-25 CN CN201610104347.XA patent/CN105480975A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101190789A (en) * | 2007-04-19 | 2008-06-04 | 兰州理工大学 | Method for preparing coke breeze activated carbon from waste coke breeze |
| CN101428794A (en) * | 2008-12-01 | 2009-05-13 | 海南大学 | Preparation of coir fiber based activated carbon with high specific surface area |
| CN103318886A (en) * | 2013-06-28 | 2013-09-25 | 广西大学 | Method for preparing activated carbon from Girardinia straws |
| CN104692379A (en) * | 2014-12-24 | 2015-06-10 | 无限极（中国）有限公司 | Hemp-stem active carbon and preparation method, forming method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李慧琴等: "麻炭的制备及其微观结构", 《北京化工大学学报》 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106520750A (en) * | 2016-12-08 | 2017-03-22 | 浙江海洋大学 | Immobilized microbial repairing agent for spilled oil and preparation method thereof |
| CN106803595B (en) * | 2016-12-28 | 2020-04-28 | 深圳大学 | Carbon-based oxygen reduction catalyst and preparation method and application thereof |
| CN106803595A (en) * | 2016-12-28 | 2017-06-06 | 深圳大学 | A kind of carbon-based oxygen reduction catalyst and preparation method and application |
| CN108862274A (en) * | 2018-07-17 | 2018-11-23 | 华南理工大学 | A kind of preparation method and applications of cellulose base level porous carbon materials |
| CN108862274B (en) * | 2018-07-17 | 2020-06-19 | 华南理工大学 | Preparation method and application of cellulose-based hierarchical porous carbon material |
| CN111747409A (en) * | 2019-03-26 | 2020-10-09 | 天津科技大学 | Preparation method of phosphotungstic acid catalyzed hemp stem core hydrothermal carbon material |
| CN111747410A (en) * | 2019-03-26 | 2020-10-09 | 天津科技大学 | Method for preparing hemp stalk core-based carbon material by hydrothermal method |
| CN110404040A (en) * | 2019-07-03 | 2019-11-05 | 李卫 | It is a kind of using Chinese fiber crops as composition of the treatment rheumatic bone joint pain of raw material and its gel and preparation method thereof |
| CN110844880A (en) * | 2019-11-05 | 2020-02-28 | 华北电力大学 | Preparation method of fluorine-doped porous carbon nanofiber-loaded alkali metal hydrogen storage material |
| CN110844880B (en) * | 2019-11-05 | 2021-07-16 | 华北电力大学 | Preparation method of fluorine-doped porous carbon nanofiber-loaded alkali metal hydrogen storage material |
| CN111487292A (en) * | 2020-05-18 | 2020-08-04 | 黑龙江省科学院高技术研究院 | Preparation method and application of hemp stalk biomass graphene-based sulfur-doped tin oxide composite gas-sensitive material |
| CN111487292B (en) * | 2020-05-18 | 2023-03-28 | 黑龙江省科学院高技术研究院 | Preparation method and application of hemp stalk biomass graphene-based sulfur-doped tin oxide composite gas-sensitive material |
| CN115784227A (en) * | 2022-11-07 | 2023-03-14 | 河南农业大学 | Method for preparing porous carbon from agriculture and forestry biomass |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105480975A (en) | Method for preparing high-specific-surface-area porous carbon with hemp stems as carbon source | |
| CN105692587B (en) | A kind of carbon aerogels and preparation method thereof preparing N doping using natural structure high polymer nanometer fiber aeroge | |
| CN103839699B (en) | A kind of method utilizing bagasse to prepare ultracapacitor carbon aerogels | |
| CN109516458A (en) | A kind of biomass-based graded porous carbon and preparation method thereof | |
| CN104671229B (en) | A kind of method preparing carbon microspheres based on biomass-based hydrothermal carbonization | |
| CN104250003B (en) | A kind of preparation method of nitrogen doping porous carbon nanometer sheet | |
| CN105731447B (en) | A kind of preparation method and product of the classifying porous nitrogen-doped graphene of three-dimensional | |
| CN102153528B (en) | Method for preparing furfural, polyether polyalcohol, phenolic resin and nanometer silicon dioxide from straw | |
| CN107628597B (en) | By using SiO2Method for preparing biomass carbon material with micropore and mesopore structure by coating method | |
| CN102505187B (en) | Hierarchical porosity carbon fiber material, preparation method and application thereof | |
| WO2018188422A1 (en) | Garlic skin-based activated carbon electrode material for use with supercapacitor and preparation method | |
| TW200951068A (en) | Bacterial cellulose film and carbon nanotubes-like thin film structures developed from bacterial cellulose | |
| CN109019590A (en) | Lignin-base multi-stage porous carbon material and preparation method thereof | |
| CN101780955A (en) | Chitosan activated carbon and preparation method thereof | |
| CN103922328A (en) | Method for preparing nitrogenous hierarchical pore three-dimensional graphene by using chitosan | |
| CN102126723A (en) | Method for preparing active carbon from ramie stalks | |
| CN107758654B (en) | A kind of high yield phosphorus doping porous carbon materials and preparation method thereof | |
| CN105502346A (en) | Carbon aerogel prepared from chitin aerogel and preparation method thereof | |
| CN105731446A (en) | Preparation method and product of ultrahigh-specific-area sulphur-nitrogen-co-doped porous graphene | |
| CN107879324B (en) | Method for preparing nitrogen-doped carbon aerogel | |
| Liang et al. | Post-modified biomass derived carbon materials for energy storage supercapacitors: a review | |
| CN104307470B (en) | Preparation method of cellulose fibre based active carbon fiber of a kind of high adsorption capacity and products thereof and application | |
| CN109232993A (en) | A kind of preparation method of cellulose/micrometer fibers element long filament porous small ball | |
| Yacob et al. | Phosphoric acid effect on prepared activated carbon from Saudi Arabia’s date frond waste | |
| CN111908443A (en) | Preparation method of self-doped porous carbon |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160413 |