CN105668566A - Method for preparing activated carbon for capacitor through pine nut shells - Google Patents
Method for preparing activated carbon for capacitor through pine nut shells Download PDFInfo
- Publication number
- CN105668566A CN105668566A CN201610136495.XA CN201610136495A CN105668566A CN 105668566 A CN105668566 A CN 105668566A CN 201610136495 A CN201610136495 A CN 201610136495A CN 105668566 A CN105668566 A CN 105668566A
- Authority
- CN
- China
- Prior art keywords
- semen pini
- activated carbon
- pini shell
- capacitor
- pine nut
- 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
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000003990 capacitor Substances 0.000 title claims abstract description 24
- 235000008331 Pinus X rigitaeda Nutrition 0.000 title abstract 8
- 235000011613 Pinus brutia Nutrition 0.000 title abstract 8
- 241000018646 Pinus brutia Species 0.000 title abstract 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 36
- 229910001873 dinitrogen Inorganic materials 0.000 claims abstract description 6
- 239000003610 charcoal Substances 0.000 claims description 20
- 229910052757 nitrogen Inorganic materials 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 10
- 239000008363 phosphate buffer Substances 0.000 claims description 10
- 238000007654 immersion Methods 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 5
- 230000009514 concussion Effects 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- 238000010583 slow cooling Methods 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 3
- 239000008055 phosphate buffer solution Substances 0.000 abstract 1
- 238000004321 preservation Methods 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 description 4
- 239000002956 ash Substances 0.000 description 3
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
- H01G11/44—Raw materials therefor, e.g. resins or coal
-
- 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
- C01P2006/40—Electric properties
-
- 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
- Y02E60/13—Energy storage using capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention relates to a method for preparing activated carbon for a capacitor through pine nut shells.The method includes the following steps that 1, pine nut shell carbon is prepared from the pine nut shells; 2, the pine nut shell carbon obtained in step 1 is soaked with a 0.2 M phosphate buffer solution for 3 hours; 3, the pine nut shell carbon is taken out and dried at the temperature of 75-80 DEG C, then the pine nut shell carbon is subjected to heat preservation for 3 minutes at the temperature of 329-334 DEG C under the protection of nitrogen gas, naturally cooled to the normal temperature, washed and dried, and the activated carbon for the capacitor is obtained.According to the method for preparing the activated carbon for the capacitor, the pine nut shells serve as raw materials, cost is low, the preparation method is simple, and the prepared activated carbon is large in specific surface area.
Description
Technical field
The invention belongs to field of material preparation, be specifically related to a kind of method using Semen Pini shell to prepare capacitor activated carbon.
Background technology
Capacitor is to widely use in the industry such as electronics, in present high-side capacitance device, a lot of use activated carbons are as electrode material, super capacitor active carbon is commonly referred to super-activated carbon or carbon electrode material, there is the specific surface area of super large, the features such as hole concentration, low ash, and good conductivity, it is suitable for and manufactures heavy-duty battery, the carrier of double layer capacitor product and heavy metal recovery. But, this has higher requirement for the preparation method of activated carbon and the performance of activated carbon.
Summary of the invention
It is an object of the invention to provide a kind of method using Semen Pini shell to prepare capacitor activated carbon, prepare activated carbon using Semen Pini shell as raw material, prepare through rational technique, it is possible to reach to prepare the requirement of capacitor.
The present invention is achieved through the following technical solutions:
A kind of method using Semen Pini shell to prepare capacitor activated carbon, comprises the following steps:
(1), by Semen Pini shell under nitrogen protection, isothermal holding 35-38min at 312-318 DEG C, it is to slowly warm up to 550-560 DEG C, increasing extent of temperature is 4 DEG C/min, insulation 18-22min, keeping flow of nitrogen gas circulation in insulating process, the speed of nitrogen circulation is 0.2m/s, and then slow cooling is to room temperature, cooling extent is 3.6 DEG C/min, obtains Semen Pini shell charcoal;
(2) the Semen Pini shell charcoal, step (1) handled well uses 0.2M phosphate buffer immersion treatment 3h, during immersion, phosphate buffer adds metallic nickel rod, soak the front 1h started, the magnetic field that Semen Pini shell carbon uses 0.05T processes, then cancelling magnetic field, carry out concussion process under Ultrasonic Conditions, ultrasonic intensity is 32KHz;
(3), Semen Pini shell charcoal is taken out, dry at 75-80 DEG C, then by Semen Pini shell charcoal isothermal holding 3min at 329-334 DEG C under nitrogen protection, be naturally cooling to room temperature, through cleaning, drying, obtain capacitor activated carbon.
Phosphate buffer is placed with metallic nickel, it is possible to reduce the content of ashes in activated carbon, content of ashes is reduced 10-15%, promote the performance of capacitor.
Beneficial effects of the present invention: the preparation method of capacitor activated carbon provided by the invention, uses Semen Pini shell as raw material, and with low cost, the method for preparation is simple, and activated carbon specific surface area prepared by the present invention reaches 1945-2512m2/ g, pore volume is between 0.98-1.02cc/g, and the water system capacitance of capacitance electrode prepared by activated carbon of the present invention reaches 240F/g;In the application, the condition of each step controls that the performance of activated carbon is had strong influence, and the scheme in the application is preferably scheme, the performance of activated carbon can be produced bigger harmful effect after conditional parameter is changed.
Detailed description of the invention
Embodiment 1
A kind of method using Semen Pini shell to prepare capacitor activated carbon, comprises the following steps:
(1), by Semen Pini shell under nitrogen protection, isothermal holding 36min at 315 DEG C, it is to slowly warm up to 555 DEG C, increasing extent of temperature is 4 DEG C/min, insulation 20min, keeping flow of nitrogen gas circulation in insulating process, the speed of nitrogen circulation is 0.2m/s, and then slow cooling is to room temperature, cooling extent is 3.6 DEG C/min, obtains Semen Pini shell charcoal;
(2) the Semen Pini shell charcoal, step (1) handled well uses 0.2M phosphate buffer immersion treatment 3h, during immersion, phosphate buffer adds metallic nickel rod, soak the front 1h started, the magnetic field that Semen Pini shell carbon uses 0.05T processes, then cancelling magnetic field, carry out concussion process under Ultrasonic Conditions, ultrasonic intensity is 32KHz;
(3), Semen Pini shell charcoal is taken out, dry at 75-80 DEG C, then by Semen Pini shell charcoal isothermal holding 3min at 330 DEG C under nitrogen protection, be naturally cooling to room temperature, through cleaning, obtain capacitor activated carbon.
Embodiment 2
A kind of method using Semen Pini shell to prepare capacitor activated carbon, comprises the following steps:
(1), by Semen Pini shell under nitrogen protection, isothermal holding 36min at 318 DEG C, it is to slowly warm up to 550 DEG C, increasing extent of temperature is 4 DEG C/min, insulation 20min, keeping flow of nitrogen gas circulation in insulating process, the speed of nitrogen circulation is 0.2m/s, and then slow cooling is to room temperature, cooling extent is 3.6 DEG C/min, obtains Semen Pini shell charcoal;
(2) the Semen Pini shell charcoal, step (1) handled well uses 0.2M phosphate buffer immersion treatment 3h, during immersion, phosphate buffer adds metallic nickel rod, soak the front 1h started, the magnetic field that Semen Pini shell carbon uses 0.05T processes, then cancelling magnetic field, carry out concussion process under Ultrasonic Conditions, ultrasonic intensity is 32KHz;
(3), Semen Pini shell charcoal is taken out, dry at 75-80 DEG C, then by Semen Pini shell charcoal isothermal holding 3min at 334 DEG C under nitrogen protection, be naturally cooling to room temperature, through cleaning, obtain capacitor activated carbon.
Comparative example 1
A kind of method using Semen Pini shell to prepare capacitor activated carbon, comprises the following steps:
(1), by Semen Pini shell under nitrogen protection, isothermal holding 36min at 315 DEG C, it is to slowly warm up to 555 DEG C, increasing extent of temperature is 4 DEG C/min, insulation 20min, keeping flow of nitrogen gas circulation in insulating process, the speed of nitrogen circulation is 0.2m/s, and then slow cooling is to room temperature, cooling extent is 3.6 DEG C/min, obtains Semen Pini shell charcoal;
(2) the Semen Pini shell charcoal, step (1) handled well uses 0.2M phosphate buffer immersion treatment 3h, soak the front 1h started, Semen Pini shell carbon uses the magnetic field of 0.05T process, then cancels magnetic field, carrying out concussion process under Ultrasonic Conditions, ultrasonic intensity is 32KHz;
(3), Semen Pini shell charcoal is taken out, dry at 75-80 DEG C, then by Semen Pini shell charcoal isothermal holding 3min at 330 DEG C under nitrogen protection, be naturally cooling to room temperature, through cleaning, obtain capacitor activated carbon.
The performance of activated carbon prepared by the method for various embodiments of the present invention such as following table:
| Specific surface area (m2/ g) | Pore volume (cc/g) | Water system capacitance (F/g) | |
| Embodiment 1 | 2489 | 1.01 | 240 |
| Embodiment 2 | 2235 | 1.00 | 226 |
| Embodiment 3 | 1742 | 0.95 | 198 |
Table 1
As shown in Table 1, the activated carbon that prepared by the application method has good performance, it is possible to use on the capacitor, and the method for the present invention more optimizes, and the Properties of Activated Carbon prepared is better.
Claims (1)
1. one kind uses the method that Semen Pini shell prepares capacitor activated carbon, it is characterised in that comprise the following steps:
(1), by Semen Pini shell under nitrogen protection, isothermal holding 35-38min at 312-318 DEG C, it is to slowly warm up to 550-560 DEG C, increasing extent of temperature is 4 DEG C/min, insulation 18-22min, keeping flow of nitrogen gas circulation in insulating process, the speed of nitrogen circulation is 0.2m/s, and then slow cooling is to room temperature, cooling extent is 3.6 DEG C/min, obtains Semen Pini shell charcoal;
(2) the Semen Pini shell charcoal, step (1) obtained uses 0.2M phosphate buffer immersion treatment 3h, during immersion, phosphate buffer adds metallic nickel rod, soak the front 1h started, the magnetic field that Semen Pini shell carbon uses 0.05T processes, then cancelling magnetic field, carry out concussion process under Ultrasonic Conditions, ultrasonic intensity is 32KHz;
(3), Semen Pini shell charcoal is taken out, dry at 75-80 DEG C, then by Semen Pini shell charcoal isothermal holding 3min at 329-334 DEG C under nitrogen protection, be naturally cooling to room temperature, clean, dry, obtain capacitor activated carbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610136495.XA CN105668566A (en) | 2016-03-11 | 2016-03-11 | Method for preparing activated carbon for capacitor through pine nut shells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610136495.XA CN105668566A (en) | 2016-03-11 | 2016-03-11 | Method for preparing activated carbon for capacitor through pine nut shells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105668566A true CN105668566A (en) | 2016-06-15 |
Family
ID=56307452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610136495.XA Pending CN105668566A (en) | 2016-03-11 | 2016-03-11 | Method for preparing activated carbon for capacitor through pine nut shells |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105668566A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111883368A (en) * | 2020-06-19 | 2020-11-03 | 大连理工大学 | Pine nut shell derived carbon material/triazine polymer derived carbon material, preparation method and application thereof, and double-carbon sodium ion hybrid capacitor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005006471A1 (en) * | 2003-07-10 | 2005-01-20 | Seoul National University Industry Foundation | Nanostructured carbon materials having good crystallinity and large surface area suitable for electrodes, and method for synthesizing the same using catalytic graphitization of polymeric carbon precursors |
| CN101475165A (en) * | 2008-12-25 | 2009-07-08 | 东华大学 | Method for preparing active carbon from straw stalk |
| CN104150478A (en) * | 2014-07-17 | 2014-11-19 | 吉林大学 | Green cycle process for preparing activated carbon material for supercapacitors by using rice husks |
-
2016
- 2016-03-11 CN CN201610136495.XA patent/CN105668566A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005006471A1 (en) * | 2003-07-10 | 2005-01-20 | Seoul National University Industry Foundation | Nanostructured carbon materials having good crystallinity and large surface area suitable for electrodes, and method for synthesizing the same using catalytic graphitization of polymeric carbon precursors |
| CN101475165A (en) * | 2008-12-25 | 2009-07-08 | 东华大学 | Method for preparing active carbon from straw stalk |
| CN104150478A (en) * | 2014-07-17 | 2014-11-19 | 吉林大学 | Green cycle process for preparing activated carbon material for supercapacitors by using rice husks |
Non-Patent Citations (1)
| Title |
|---|
| 沈阳药学院药剂教研室: "《药剂学》", 31 January 1996 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111883368A (en) * | 2020-06-19 | 2020-11-03 | 大连理工大学 | Pine nut shell derived carbon material/triazine polymer derived carbon material, preparation method and application thereof, and double-carbon sodium ion hybrid capacitor |
| CN111883368B (en) * | 2020-06-19 | 2021-10-29 | 大连理工大学 | Pine nut shell derived carbon material/triazine polymer derived carbon material, preparation method and application thereof, and double-carbon sodium ion hybrid capacitor |
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Application publication date: 20160615 |