CN108832163A - A kind of Minitype microbial fuel cell and preparation method thereof - Google Patents
A kind of Minitype microbial fuel cell and preparation method thereof Download PDFInfo
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- CN108832163A CN108832163A CN201810799437.4A CN201810799437A CN108832163A CN 108832163 A CN108832163 A CN 108832163A CN 201810799437 A CN201810799437 A CN 201810799437A CN 108832163 A CN108832163 A CN 108832163A
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- cotton thread
- fuel cell
- minitype
- microbial fuel
- carbon cloth
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/16—Biochemical fuel cells, i.e. cells in which microorganisms function as catalysts
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- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The present invention relates to a kind of Minitype microbial fuel cells and preparation method thereof, belong to technical field of microbial fuel battery, the battery is to be impregnated with the cotton thread I of oxidizing agent solution as cathode pool, to be impregnated with the cotton thread II of bacterium solution as anode pool, it is wrapped up by carbon cloth I and cathode is formed with the extraction of conducting wire I in one end of the cotton thread I, one end of the other end of cotton thread I and the cotton thread II is mutually wound ion-exchange area, it is wrapped up by carbon cloth II and anode is formed with the extraction of conducting wire II in the ion-exchange area, it is located in the confined space being made of insulation board I and insulation board II by the ion-exchange area that carbon cloth II wraps up.The battery is not necessarily to additional pump, has the advantages that high current density is high, internal resistance is small, and preparation process is simple, and raw material are easy to get, cheap, is suitble to industrialized production.
Description
Technical field
The invention belongs to technical field of microbial fuel battery, and in particular to a kind of using cotton thread as the miniature microorganism in channel
Fuel cell and preparation method thereof.
Background technique
Currently, global energy notch increases, and problem of energy crisis is increasingly prominent, and seeking renewable energy is to solve this
One approach of class problem.Microbiological fuel cell is exactly a kind of microbial bacterial using in nature as biocatalysis
Chemical energy in organic matter is changed into the device of electric energy by agent.Microbiological fuel cell is one kind using microorganism as anode
Chemical energy, is directly translated into the device of electric energy by catalyst, and basic structure is cathode pool and anode pool.Currently, more mature
The microbiological fuel cell of stock size is since lowly in application aspect, there are larger bottlenecks for efficiency of fuel cell generation, and miniature microorganism is fired
Battery is expected because its internal resistance is small, and the starting time is short, has the advantages such as higher electron transmission efficiency than two traditional Room MFC and obtains
Extensive concern.Minitype microbial fuel cell has extremely wide application prospect since its is small in size, electricity production is high, is expected to
It plays an important role in military, Homeland Security and medical domain.
Summary of the invention
In view of this, one of the objects of the present invention is to provide a kind of Minitype microbial fuel cell, the second purpose is
A kind of preparation method of Minitype microbial fuel cell is provided.
In order to achieve the above objectives, the present invention provides the following technical solutions：
1, a kind of Minitype microbial fuel cell, the battery to be impregnated with the cotton thread I of oxidizing agent solution as cathode pool,
To be impregnated with the cotton thread II of bacterium solution as anode pool, one end of the cotton thread I, which is wrapped up and drawn with conducting wire I by carbon cloth I, forms yin
One end of pole, the other end of cotton thread I and the cotton thread II is mutually wound ion-exchange area, and the ion-exchange area is by carbon cloth
II package simultaneously forms anode with the extraction of conducting wire II, and the ion-exchange area wrapped up by carbon cloth II is located at by insulation board I and insulation board II
In the confined space of composition.
Further, the cotton thread I and cotton thread II pass through plasma cleaning processing.
Further, the radius of the cotton thread I is less than the radius of cotton thread II.
Further, the radius of the cotton thread I and cotton thread II is 1-2mm, and length is 8-15cm.
Further, the oxidizing agent solution is the potassium ferricyanide solution that concentration is 0.05-0.2mol/L, the potassium ferricyanide
Solution using concentration for 0.01-0.1mol/L PBS buffer solution as solvent.
Further, the bacterium solution is Shewanella bacterium solution, and the concentration of Shewanella is 10 in the Shewanella bacterium solution8-
109cfu/mL。
Further, the conducting wire I and conducting wire II are titanium silk.
Further, the length of the ion-exchange area is 1.5-2.5cm.
Further, the length of the carbon cloth I is 1-1.5cm, and the length of carbon cloth II is 1.5-2.5cm, carbon cloth I and carbon cloth II
Width be 2-2.5mm.
2, a kind of preparation method of Minitype microbial fuel cell, the method are specific as follows：
Cathode, cotton thread I are formed with the extraction of conducting wire I after one end of cotton thread I is immersed in oxidizing agent solution and is wrapped up with carbon cloth I
The other end and one end of cotton thread II be mutually wound ion-exchange area, the ion-exchange area is wrapped up with carbon cloth II and with leading
The extraction of line II forms anode, and the ion-exchange area wrapped up by carbon cloth II is placed in be made of insulation board I and insulation board II it is close
It closes in space, the other end of the cotton thread II enters in bacterium solution.
The beneficial effects of the present invention are：The present invention provides a kind of Minitype microbial fuel cell and preparation method thereof,
The Minitype microbial fuel cell is to be impregnated with the cotton thread I of oxidizing agent solution as cathode pool, to be impregnated with the cotton thread II of bacterium solution
As anode pool, one end of one end of cotton thread I and cotton thread II is mutually wound ion-exchange area, this mode can will flow
Influence of the speed to internal resistance is minimized, subsequent to be wrapped up with carbon cloth, is adhered to ion exchange for bacterial growth and is provided place.And
And in the battery two electrodes position than traditional devices more close to effectively reducing electrode distance, further reduced
Internal resistance.Since internal resistance becomes smaller, electrode area is reduced, and liquid can continue to energize by cotton thread self-suction function, so that
The current density of the Minitype microbial fuel cell improves, and has the longer duration.The battery preparation technique is simple, former
Material is easy to get, cheap, is suitble to industrialized production.
Detailed description of the invention
In order to keep the purpose of the present invention, technical scheme and beneficial effects clearer, the present invention provides following attached drawing and carries out
Explanation：
Fig. 1 is the structural schematic diagram that miniature biological fuel cell prepared by the present invention forms battery pack；
Fig. 2 is the scanning electron microscope (SEM) photograph of Minitype microbial fuel cell carbon cloth II prepared in embodiment 1；
Fig. 3 is Minitype microbial fuel cell electric performance test figure prepared in embodiment 1；
Fig. 4 is the blank control test figure of Minitype microbial fuel cell prepared in embodiment 1；
Fig. 5 is the current density test chart of the Minitype microbial fuel cell prepared in embodiment 1 and comparative example 1；
Fig. 6 is the current density test chart of the Minitype microbial fuel cell prepared in embodiment 1 and comparative example 2.
Specific embodiment
Below by a preferred embodiment of the present invention will be described in detail.
Embodiment 1
Prepare a kind of Minitype microbial fuel cell
(1) bacterium solution is configured
It is that experimental strain (ATCC 700550) connects by Shewanella Shewanella oneidensis CN-32 wild type
Kind is into LB liquid medium, in 30 DEG C, shaking table culture 12h under the conditions of 220rpm, obtains bacterium solution, Shewanella in the bacterium solution
Concentration is 108Cfu/mL, wherein the concentration of peptone is 10g/L in LB liquid medium, and the concentration of yeast extract is 5g/
The concentration of L, NaCl are 10g/L.
(2) battery assembly
It is 1.2mm by radius, the cotton thread I and radius that length is 10cm are 1.5mm, and length is that the cotton thread II of 10cm carries out etc.
Ion Cleaning processing, then immerses one end of cotton thread I in the potassium ferricyanide solution that concentration is 0.05mol/L and with a length of 1cm,
The carbon cloth I that width is 2mm is drawn with titanium silk (conducting wire I) after wrapping up and forms cathode, and one end of the other end and cotton thread II of cotton thread I is mutual
It is wound the ion-exchange area that length is 2cm, with a length of 2cm, the carbon cloth II that width is 2mm wraps up the ion-exchange area and uses titanium
Silk (conducting wire II) extraction forms anode, and the ion-exchange area wrapped up by carbon cloth II is placed in by II structure of insulation board I and insulation board
At confined space in, the other end of cotton thread II enter bacterial concentration be 108In the Shewanella bacterium solution of cfu/mL,
It is middle prepare potassium ferricyanide solution when using concentration for 0.01mol/L PBS buffer solution as solvent.
The battery schematic diagram that obtains after assembling is as shown in Figure 1,1 be cotton thread I in figure, 2 be cotton thread II, and 3 be carbon cloth I, and 4 be carbon
Cloth II, 5 be conducting wire I, and 6 be conducting wire II, and 7 be insulation board I, and 8 be insulation board II.With scanning electron microscope to the miniature Microbial fuel electricity
Carbon cloth II is scanned in pond, and scanning result is as shown in Fig. 2, wherein a is 5000 times of amplification in Fig. 2, and b is amplification 1000 in Fig. 2
Times, as shown in Figure 2, bacterium large area attachment on carbon cloth II on cotton thread II, and after a period of time, mycoderm is formd, foot
There is endlessly bacterium solution supply in exchange area with explanation, ion exchange is enable to continue longer time.
Electricity generation performance test is carried out to the Minitype microbial fuel cell of above-mentioned preparation, test applied load resistance is 5000
Ohm, test results are shown in figure 3, from the figure 3, it may be seen that the maximum current density of the Minitype microbial fuel cell is up to 500mA/
m2。
In addition, cotton thread I is first originally immersed concentration when carrying out electricity generation performance test to the Minitype microbial fuel cell
For in the PBS buffer solution of 0.01mol/L, after a period of time, then that cotton thread I immersed the potassium ferricyanide that concentration is 0.05mol/L is molten
In liquid, test result is shown in Fig. 4, as shown in Figure 4, after cotton thread I is immersed the potassium ferricyanide solution that concentration is 0.05mol/L, electricity
Pressure jumps, illustrate the battery generate effective voltage, be as caused by ion exchange, rather than by the structure of device itself produce
It is raw.
Comparative example 1
It is with the difference in embodiment 1, the radius of cotton thread I is 1.5mm, and the radius of cotton thread II is 1.2mm.
It is prepared in the Minitype microbial fuel cell and comparative example 1 prepared in testing example 1 respectively miniature micro-
The titanium silk of two kinds of batteries is picked out dock with multimeter positive and negative anodes respectively by the electrical property of biological fuel cell, real-time by software
Record detection, test results are shown in figure 5, and as shown in Figure 5, the maximum current density numerical values recited difference of two batteries is little,
But the time that the Minitype microbial fuel cell for implementing to prepare in 1 reaches high current density is shorter, and effect is more preferable, illustrates when miniature
When cathode pool radius is less than anode pool radius in microbiological fuel cell, the time that battery reaches high current density is shorter, effect
More preferably.
Comparative example 2
It is with the difference in embodiment 1, carbon cloth I and carbon cloth II is replaced with into carbon fiber respectively.
It is prepared in the Minitype microbial fuel cell and comparative example 2 prepared in testing example 1 respectively miniature micro-
The titanium silk of two kinds of batteries is picked out dock with multimeter positive and negative anodes respectively by the electrical property of biological fuel cell, real-time by software
Record detection, test results are shown in figure 6, it will be appreciated from fig. 6 that the electric current for implementing the Minitype microbial fuel cell prepared in 1 is close
Degree is higher than the Minitype microbial fuel cell prepared in comparative example 2.
Finally, it is stated that preferred embodiment above is only used to illustrate the technical scheme of the present invention and not to limit it, although logical
It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (10)
1. a kind of Minitype microbial fuel cell, which is characterized in that the battery using be impregnated with the cotton thread I of oxidizing agent solution as
Cathode pool, to be impregnated with the cotton thread II of bacterium solution as anode pool, one end of the cotton thread I is wrapped up and drawn with conducting wire I by carbon cloth I
Cathode is formed, the other end of cotton thread I and one end of the cotton thread II are mutually wound ion-exchange area, the ion-exchange area
It is wrapped up by carbon cloth II and anode is formed with the extraction of conducting wire II, the ion-exchange area wrapped up by carbon cloth II is positioned at by insulation board I and absolutely
In the confined space that listrium II is constituted.
2. a kind of Minitype microbial fuel cell as described in claim 1, which is characterized in that the cotton thread I and cotton thread II are equal
By plasma cleaning processing.
3. a kind of Minitype microbial fuel cell as claimed in claim 2, which is characterized in that the radius of the cotton thread I is less than
The radius of cotton thread II.
4. a kind of Minitype microbial fuel cell as claimed in claim 3, which is characterized in that the cotton thread I and cotton thread II
Radius is 1-2mm, and length is 8-15cm.
5. a kind of Minitype microbial fuel cell as described in claim 1, which is characterized in that the oxidizing agent solution is concentration
For the potassium ferricyanide solution of 0.05-0.2mol/L, the potassium ferricyanide solution is buffered with concentration for the PBS of 0.01-0.1mol/L
Liquid is solvent.
6. a kind of Minitype microbial fuel cell as described in claim 1, which is characterized in that the bacterium solution is Shewanella bacterium
Liquid, the concentration of Shewanella is 10 in the Shewanella bacterium solution8-109cfu/mL。
7. a kind of Minitype microbial fuel cell as described in claim 1, which is characterized in that the conducting wire I and conducting wire II are equal
For titanium silk.
8. a kind of Minitype microbial fuel cell as described in claim 1, which is characterized in that the length of the ion-exchange area
For 1.5-2.5cm.
9. a kind of Minitype microbial fuel cell as described in claim 1, which is characterized in that the length of the carbon cloth I is 1-
1.5cm, the length of carbon cloth II are 1.5-2.5cm, and the width of carbon cloth I and carbon cloth II is 2-2.5mm.
10. a kind of described in any item preparation methods of Minitype microbial fuel cell of claim 1-9, which is characterized in that institute
It is specific as follows to state method：
Will cotton thread I one end immerse in oxidizing agent solution and wrapped up with carbon cloth I after with the extraction of conducting wire I form cathode, cotton thread I it is another
One end of one end and cotton thread II is mutually wound ion-exchange area, wraps up the ion-exchange area with carbon cloth II and with conducting wire II
Extraction forms anode, and the ion-exchange area wrapped up by carbon cloth II is placed in the confined air being made of insulation board I and insulation board II
In, the other end of the cotton thread II enters in bacterium solution.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810799437.4A CN108832163B (en) | 2018-07-19 | 2018-07-19 | Micro microbial fuel cell and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810799437.4A CN108832163B (en) | 2018-07-19 | 2018-07-19 | Micro microbial fuel cell and preparation method thereof |
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| CN108832163A true CN108832163A (en) | 2018-11-16 |
| CN108832163B CN108832163B (en) | 2021-02-19 |
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| US20110236769A1 (en) * | 2010-03-23 | 2011-09-29 | Xing Xie | Three dimensional electrodes useful for microbial fuel cells |
| CN102299361A (en) * | 2010-06-28 | 2011-12-28 | 中国科学技术大学 | Minitype microbial fuel cell |
| CN104263672A (en) * | 2014-07-23 | 2015-01-07 | 常州市第一人民医院 | High-electricity-generation shewanella bacterium and application of high-electricity-generation shewanella bacterium |
| US20150349350A1 (en) * | 2013-03-15 | 2015-12-03 | Oregon State University | Microbial fuel cell and methods of use |
| CN105161744A (en) * | 2015-09-24 | 2015-12-16 | 安徽工程大学 | Biological cathode, preparation method thereof, microbial micro-cell and device for treating acid mine waste water |
-
2018
- 2018-07-19 CN CN201810799437.4A patent/CN108832163B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110236769A1 (en) * | 2010-03-23 | 2011-09-29 | Xing Xie | Three dimensional electrodes useful for microbial fuel cells |
| CN102299361A (en) * | 2010-06-28 | 2011-12-28 | 中国科学技术大学 | Minitype microbial fuel cell |
| US20150349350A1 (en) * | 2013-03-15 | 2015-12-03 | Oregon State University | Microbial fuel cell and methods of use |
| CN104263672A (en) * | 2014-07-23 | 2015-01-07 | 常州市第一人民医院 | High-electricity-generation shewanella bacterium and application of high-electricity-generation shewanella bacterium |
| CN105161744A (en) * | 2015-09-24 | 2015-12-16 | 安徽工程大学 | Biological cathode, preparation method thereof, microbial micro-cell and device for treating acid mine waste water |
Non-Patent Citations (2)
| Title |
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| CN108832163B (en) | 2021-02-19 |
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