CN108832163B - Micro microbial fuel cell and preparation method thereof - Google Patents
Micro microbial fuel cell and preparation method thereof Download PDFInfo
- Publication number
- CN108832163B CN108832163B CN201810799437.4A CN201810799437A CN108832163B CN 108832163 B CN108832163 B CN 108832163B CN 201810799437 A CN201810799437 A CN 201810799437A CN 108832163 B CN108832163 B CN 108832163B
- Authority
- CN
- China
- Prior art keywords
- cotton thread
- fuel cell
- microbial fuel
- carbon cloth
- micro
- 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.)
- Active
Links
Images
Classifications
-
- 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
-
- 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 invention relates to a micro microbial fuel cell and a preparation method thereof, belonging to the technical field of microbial fuel cells. The battery does not need an additional pump, has the advantages of high current density, small internal resistance, simple preparation process, easily obtained raw materials, low price and suitability for industrial production.
Description
Technical Field
The invention belongs to the technical field of microbial fuel cells, and particularly relates to a micro microbial fuel cell taking cotton threads as a channel and a preparation method thereof.
Background
At present, the global energy gap is increased, the energy crisis problem is more and more prominent, and the search for renewable energy is a way to solve the problem. The microbial fuel cell is a device which converts chemical energy in organic matters into electric energy by using microbial bacteria in the nature as a biocatalyst. The microbial fuel cell is a device which takes microbes as an anode catalyst and directly converts chemical energy into electric energy, and the basic structure of the microbial fuel cell is a cathode pool and an anode pool. At present, mature microbial fuel cells with conventional sizes have a larger bottleneck in application due to low electricity generation efficiency, and micro microbial fuel cells have wide attention due to the advantages of small internal resistance, short starting time, higher electron transfer efficiency and the like compared with the traditional two-chamber MFC. The micro microbial fuel cell has very wide application prospect due to small volume and high electricity production, and is expected to play an important role in military, homeland security and medical fields.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a micro microbial fuel cell, and another object of the present invention is to provide a method for manufacturing a micro microbial fuel cell.
In order to achieve the purpose, the invention provides the following technical scheme:
1. a micro microbial fuel cell is characterized in that a cotton thread I soaked with an oxidant solution is used as a cathode pool, a cotton thread II soaked with a bacterial solution is used as an anode pool, one end of the cotton thread I is wrapped by a carbon cloth I and led out by a lead I to form a cathode, the other end of the cotton thread I and one end of the cotton thread II are mutually wound to form an ion exchange area, the ion exchange area is wrapped by the carbon cloth II and led out by the lead II to form an anode, and the ion exchange area wrapped by the carbon cloth II is located in a closed space formed by an insulating plate I and the insulating plate II.
Further, the cotton threads I and the cotton threads II are both subjected to plasma cleaning treatment.
Further, the radius of the cotton thread I is smaller than that of the cotton thread II.
Furthermore, the radius of the cotton thread I and the radius of the cotton thread II are both 1-2mm, and the length of the cotton thread I and the cotton thread II is 8-15 cm.
Further, the oxidant solution is potassium ferricyanide solution with the concentration of 0.05-0.2mol/L, and the potassium ferricyanide solution takes PBS buffer solution with the concentration of 0.01-0.1mol/L as a solvent.
Further, the bacterium liquid is a Shewanella bacterium liquid, and the concentration of Shewanella in the Shewanella bacterium liquid is 108-109cfu/mL。
Furthermore, the lead I and the lead II are both titanium wires.
Further, the length of the ion exchange zone is 1.5-2.5 cm.
Further, the length of the carbon cloth I is 1-1.5cm, the length of the carbon cloth II is 1.5-2.5cm, and the widths of the carbon cloth I and the carbon cloth II are both 2-2.5 mm.
2. The preparation method of the micro microbial fuel cell specifically comprises the following steps:
immersing one end of a cotton thread I into an oxidant solution, wrapping the cotton thread I by a carbon cloth I, leading out the cotton thread I by a lead to form a cathode, winding the other end of the cotton thread I and one end of a cotton thread II to form an ion exchange area, wrapping the ion exchange area by the carbon cloth II, leading out the cotton thread II to form an anode, placing the ion exchange area wrapped by the carbon cloth II in a closed space formed by an insulating plate I and an insulating plate II, and leading the other end of the cotton thread II into a bacterium solution.
The invention has the beneficial effects that: the invention provides a micro microbial fuel cell and a preparation method thereof, the micro microbial fuel cell takes a cotton thread I soaked with oxidant solution as a cathode pool, takes a cotton thread II soaked with bacteria liquid as an anode pool, and mutually winds one end of the cotton thread I and one end of the cotton thread II to form an ion exchange area, the mode can reduce the influence of flow velocity on internal resistance to the minimum, and the micro microbial fuel cell is wrapped by carbon cloth subsequently to provide a place for the ion exchange attached to the growth of bacteria. In addition, the positions of the two electrodes in the battery are closer than those of the traditional device, so that the electrode distance is effectively reduced, and the internal resistance is further reduced. Because the internal resistance becomes smaller, the electrode area is reduced, and the liquid can be continuously supplied with energy through the cotton thread self-absorption function, so that the current density of the micro microbial fuel cell is improved, and the micro microbial fuel cell has longer duration. The battery has simple preparation process, easily obtained raw materials and low price, and is suitable for industrial production.
Drawings
In order to make the object, technical scheme and beneficial effect of the invention more clear, the invention provides the following drawings for explanation:
FIG. 1 is a schematic structural view of a battery pack composed of micro biofuel cells prepared according to the present invention;
FIG. 2 is a scanning electron micrograph of a carbon cloth II of the microbial fuel cell prepared in example 1;
FIG. 3 is a graph showing electrical performance tests of the micro microbial fuel cell prepared in example 1;
FIG. 4 is a blank control test chart of the micro microbial fuel cell fabricated in example 1;
FIG. 5 is a current density test chart of the micro microbial fuel cells prepared in example 1 and comparative example 1;
fig. 6 is a current density test chart of the micro microbial fuel cells prepared in example 1 and comparative example 2.
Detailed Description
The preferred embodiments of the present invention will be described in detail below.
Example 1
Preparing a micro-microbial fuel cell
(1) Prepared bacterial liquid
Inoculating Shewanella oneidensis CN-32 wild type as experimental strain (ATCC 700550) into LB liquid culture medium, shake culturing at 30 deg.C and 220rpm for 12h to obtain bacterial liquid, wherein the concentration of Shewanella oneidensis in the bacterial liquid is 108cfu/mL, wherein the concentration of peptone in LB liquid medium is 10g/L, the concentration of yeast extract is 5g/L, and the concentration of NaCl is 10 g/L.
(2) Battery assembly
Carrying out plasma cleaning treatment on a cotton thread I with the radius of 1.2mm and the length of 10cm and a cotton thread II with the radius of 1.5mm and the length of 10cm, then immersing one end of the cotton thread I into potassium ferricyanide solution with the concentration of 0.05mol/L, wrapping the cotton thread I with a carbon cloth I with the length of 1cm and the width of 2mm, leading out the cotton thread I by using a titanium wire (a lead I) to form a cathode, winding the other end of the cotton thread I and one end of the cotton thread II to form an ion exchange area with the length of 2cm, wrapping the ion exchange area by using the carbon cloth II with the length of 2cm and the width of 2mm, leading out the carbon cloth II by using a titanium wire (a lead II) to form an anode, placing the ion exchange area wrapped by the carbon cloth II in a closed space formed by an insulating plate I and an insulating plate II, and leading the other end of the cotton thread II into a8cfu/mL Shewanella bacteria liquid, wherein the PBS buffer solution with the concentration of 0.01mol/L is used as a solvent when the potassium ferricyanide solution is prepared.
The schematic diagram of the assembled battery is shown in fig. 1, wherein 1 is a cotton thread i, 2 is a cotton thread ii, 3 is a carbon cloth i, 4 is a carbon cloth ii, 5 is a lead i, 6 is a lead ii, 7 is an insulating plate i, and 8 is an insulating plate ii. Scanning the carbon cloth II in the micro microbial fuel cell by using a scanning electron microscope, wherein the scanning result is shown in fig. 2, wherein a in fig. 2 is 5000 times of magnification, and b in fig. 2 is 1000 times of magnification, as can be seen from fig. 2, bacteria on the cotton thread II are attached to the carbon cloth II in a large area, and after a period of time, a bacterial film is formed, which is enough to show that the bacteria liquid is continuously supplied in the exchange area, so that the ion exchange can last for a long time.
The micro microbial fuel cell prepared by the method is subjected to electrogenesis performance test, the external load resistance is 5000 ohms, the test result is shown in figure 3, and as can be seen from figure 3, the maximum current density of the micro microbial fuel cell can reach 500mA/m2。
In addition, when the micro microbial fuel cell is subjected to an electricity generation performance test, the cotton thread I is firstly immersed into PBS buffer solution with the concentration of 0.01mol/L, after a period of time, the cotton thread I is immersed into potassium ferricyanide solution with the concentration of 0.05mol/L, the test result is shown in figure 4, and as can be seen from figure 4, when the cotton thread I is immersed into the potassium ferricyanide solution with the concentration of 0.05mol/L, the voltage rises suddenly, which indicates that the effective voltage generated by the cell is caused by ion exchange and is not generated by the structure of the device.
Comparative example 1
The difference from example 1 is that the radius of the cotton thread I is 1.5mm and the radius of the cotton thread II is 1.2 mm.
The electrical properties of the micro microbial fuel cell prepared in example 1 and the micro microbial fuel cell prepared in comparative example 1 were respectively tested, the titanium wires of the two cells were respectively connected to be in butt joint with the positive electrode and the negative electrode of a multimeter, and the test results were recorded and detected in real time by software, as shown in fig. 5, as can be seen from fig. 5, the difference in the maximum current density values of the two cells was not great, but the time for the micro microbial fuel cell prepared in example 1 to reach a high current density was shorter, and the effect was better, which indicates that when the radius of the cathode cell in the micro microbial fuel cell was smaller than that of the anode cell, the time for the cell to reach a high current density was shorter, and the effect was better.
Comparative example 2
The difference from example 1 is that carbon cloth i and carbon cloth ii were each replaced with carbon fibers.
The electrical properties of the micro microbial fuel cell prepared in example 1 and the micro microbial fuel cell prepared in comparative example 2 were respectively tested, the titanium wires of the two cells were respectively connected to the positive and negative electrodes of a multimeter, and the test results were recorded and detected in real time by software, as shown in fig. 6, it can be seen from fig. 6 that the current density of the micro microbial fuel cell prepared in example 1 was higher than that of the micro microbial fuel cell prepared in comparative example 2.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (9)
1. A micro microbial fuel cell is characterized in that a cotton thread I soaked with an oxidant solution is used as a cathode pool, a cotton thread II soaked with a bacterial solution is used as an anode pool, one end of the cotton thread I is wrapped by a carbon cloth I and led out by a lead I to form a cathode, the other end of the cotton thread I and one end of the cotton thread II are mutually wound to form an ion exchange area, the ion exchange area is wrapped by the carbon cloth II and led out by the lead II to form an anode, and the ion exchange area wrapped by the carbon cloth II is positioned in a closed space formed by an insulating plate I and an insulating plate II; the radius of the cotton thread I is smaller than that of the cotton thread II, and the radius of the cotton thread I and the radius of the cotton thread II are both 1-2 mm.
2. The microbial fuel cell of claim 1, wherein the cotton threads i and ii are plasma cleaned.
3. The microbial fuel cell of claim 1, wherein the length of each of the first and second cotton threads is 8-15 cm.
4. The microbial fuel cell of claim 1, wherein the oxidant solution is potassium ferricyanide solution with a concentration of 0.05-0.2mol/L, and the potassium ferricyanide solution is PBS buffer solution with a concentration of 0.01-0.1mol/L as a solvent.
5. The micro microbial fuel cell according to claim 1, wherein the Shewanella bacterial liquid is Shewanella bacterial liquid, and the concentration of Shewanella in the Shewanella bacterial liquid is 108-109cfu/mL。
6. The microbial fuel cell of claim 1, wherein the first and second wires are titanium wires.
7. The microbial fuel cell of claim 1 wherein the ion exchange zone is 1.5 to 2.5cm in length.
8. The microbial fuel cell of claim 1, wherein the carbon cloth i has a length of 1 to 1.5cm, the carbon cloth ii has a length of 1.5 to 2.5cm, and the carbon cloth i and the carbon cloth ii each have a width of 2 to 2.5 mm.
9. The method for manufacturing a micro-microbial fuel cell according to any one of claims 1 to 8, wherein the method is as follows:
immersing one end of a cotton thread I into an oxidant solution, wrapping the cotton thread I by a carbon cloth I, leading out the cotton thread I by a lead to form a cathode, winding the other end of the cotton thread I and one end of a cotton thread II to form an ion exchange area, wrapping the ion exchange area by the carbon cloth II, leading out the cotton thread II to form an anode, placing the ion exchange area wrapped by the carbon cloth II in a closed space formed by an insulating plate I and an insulating plate II, and leading the other end of the cotton thread II into a bacterium solution.
Priority Applications (1)
| 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 |
Applications Claiming Priority (1)
| 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108832163A CN108832163A (en) | 2018-11-16 |
| CN108832163B true CN108832163B (en) | 2021-02-19 |
Family
ID=64139926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810799437.4A Active CN108832163B (en) | 2018-07-19 | 2018-07-19 | Micro microbial fuel cell and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108832163B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Family Cites Families (2)
| 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 |
| AU2014228812A1 (en) * | 2013-03-15 | 2015-07-23 | Oregon State University | Microbial fuel cell and methods of use |
-
2018
- 2018-07-19 CN CN201810799437.4A patent/CN108832163B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
|---|
| Effect of organic loading rate on electricity generating potential of upflow anaerobic microbial fuel cell treating surgical cotton industry wastewater;K.Tamilarasan et al;《Journal of Environmental Chemical Engineering》;20170228;第5卷(第1期);全文 * |
| Macroscale porous carbonized polydopamine-modified cotton textile for application as electrode in microbial fuel cell;Lizhen Zeng et al;《Journal of Power Sources》;20180201;第376卷;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108832163A (en) | 2018-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Marshall et al. | Electrochemical evidence of direct electrode reduction by a thermophilic Gram-positive bacterium, Thermincola ferriacetica | |
| Deng et al. | A study of electron-shuttle mechanism in Klebsiella pneumoniae based-microbial fuel cells | |
| Wada et al. | Electrochemical characteristics of new electric double layer capacitor with acidic polymer hydrogel electrolyte | |
| CN107863536B (en) | Multi-scale porous electrode applied to flow battery and preparation method and application thereof | |
| WO2017049466A1 (en) | Composite electrode material, manufacturing method thereof, and use thereof in vanadium flow battery | |
| CN105609796B (en) | The method of modifying of electrode material for all-vanadium flow battery | |
| CN107317041B (en) | A kind of catalyst layer and metal-air battery for metal air battery cathodes | |
| Wang et al. | Electrode material of carbon nanotube/polyaniline carbon paper applied in microbial fuel cells | |
| Benetton et al. | Electrochemical evaluation of Ti/TiO2-polyaniline anodes for microbial fuel cells using hypersaline microbial consortia for synthetic-wastewater treatment | |
| CN108365229A (en) | A kind of bigger serface N doping carbon cloth electrode and preparation method thereof, application | |
| Nishio et al. | Digestion of algal biomass for electricity generation in microbial fuel cells | |
| CN102723212A (en) | ITO (indium tin oxid) nanofiber/cadmium sulfide (CdS) quantum dot solar cell and preparing method thereof | |
| CN105355954A (en) | Biofuel cell capable of directly oxidizing glucose and preparation method of biofuel cell | |
| CN103794374A (en) | Organic-inorganic hybridization solar cell based on graphene doped with P3HT and manufacturing method thereof | |
| CN102522569A (en) | Method for modifying carbon porous material | |
| CN108832163B (en) | Micro microbial fuel cell and preparation method thereof | |
| CN108878991A (en) | A kind of high-energy-density zinc-silver oxide cell and preparation method thereof | |
| CN111244474A (en) | Anode biochar composite material of microbial fuel cell and preparation method thereof | |
| CN114314670B (en) | Modification method of copper ion implanted zinc battery anode material delta-manganese dioxide | |
| US10396387B2 (en) | Carbon nanotube based microbial fuel cells and methods for generating an electric current | |
| CN104517738A (en) | F-doped iron oxide large-area capacitor material, high-energy density and power-density capacitor, preparation method and application of material | |
| Chonde Sonal et al. | Bioelectricity production from wastewater using microbial fuel cell (MFC) | |
| CN105375040B (en) | Electrode of liquid flow cell processing method | |
| CN110034319A (en) | A kind of zinc-water fuel cell and its application in power generation production hydrogen | |
| CN104517735A (en) | Large-area capacitor material, high-energy density and power-density capacitor, preparation method and application of material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |