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Microbial fuel cell anode and preparation method thereof and microbial fuel cell

A technology of fuel cells and microorganisms, which is applied in the fields of biochemical fuel cells, battery electrodes, circuits, etc., and can solve the problems of low power density and limited industrialization development.

Inactive Publication Date: 2018-06-15
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its lower power density compared to other fuel cells, its industrialization development is limited.

Method used

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  • Microbial fuel cell anode and preparation method thereof and microbial fuel cell
  • Microbial fuel cell anode and preparation method thereof and microbial fuel cell
  • Microbial fuel cell anode and preparation method thereof and microbial fuel cell

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preparation example Construction

[0043] The present invention also provides a kind of preparation method of microbial fuel cell anode, comprises the following steps:

[0044] A) Immersing the carrier in the modified material solution for deposition;

[0045] The modified material solution is a mixed solution of nickel chloride and ammonium molybdate, tris-hydrochloric acid buffer solution containing dopamine, aniline solution, solution containing pyrrole monomer, ammonium molybdate solution or ammonium tungstate solution;

[0046] The carrier is one or more of cotton fabric, carbon felt or carbon cloth;

[0047] B) drying the product in step A) and then calcining to obtain the microbial fuel cell anode.

[0048] In the present invention, the carrier is immersed in the modified material solution, so that the modified material is deposited on the surface of the carrier;

[0049] In the present invention, the type of the carrier is consistent with the type of the carrier mentioned above, and will not be repea...

Embodiment 1

[0065] Preparation of microbial fuel anode in the present invention comprises the following steps:

[0066] (1) Dissolve 200mmol dopamine in 10mmol / L tris-hydrochloric acid buffer solution in a beaker, add a piece of 3cm*3cm cotton fabric, and stir for 24h. Make the surface of cotton fabric absorb a layer of polydopamine;

[0067] (2) Take out the product obtained in step (1) and rinse it with deionized water for 2 to 3 times, then put it in a blast oven at 60°C for 24 hours;

[0068] (3) Afterwards, under the condition of 1000°C argon in a tube furnace, carbonize for 1 hour to obtain the anode;

[0069] Gained anode is carried out scanning electron microscope detection, the result is as follows figure 1 as shown, figure 1 It is an SEM picture of the cotton fabric anode loaded with nitrogen-doped carbon nanoparticles in Example 1 of the present invention. figure 1 Among them, (a), (b) and (c) are SEM images of blank cotton fabrics at different magnifications, and (d), (e) ...

Embodiment 2

[0081] (1) Dip a piece of 3cm*3cm cotton fabric into immersion, 1g L -1 , 2g L -1 and 3gL -1 In the ammonium molybdate solution, stir 24h;

[0082] (2) Take out the product obtained in step (1) and rinse it with deionized water for 2 to 3 times, then put it in a blast oven at 60°C for 24 hours;

[0083] (3) Afterwards, under the condition of 1000°C argon in a tube furnace, carbonize for 1 hour to obtain the anode;

[0084] Immerse 2g L in the present embodiment -1 The anode that ammonium molybdate solution obtains carries out scanning electron microscope detection, and the result is as follows Figure 10 as shown, Figure 10 It is the SEM picture of the carbonized cotton fabric loaded with molybdenum carbide nanoparticles under different magnifications in Example 2 of the present invention, Figure 10 It can be seen that in the carbonized cotton fabric loaded with molybdenum carbide nanoparticles, the molybdenum carbide nanoparticles grow uniformly along the axial direct...

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Abstract

The invention provides a microbial fuel cell anode, which comprises a carrier and nanoparticles loaded on the carrier, wherein the nanoparticles are one or more of carbon nanoparticles, nitrogen-dopedcarbon nanoparticles, molybdenum carbide nanoparticles, tungsten carbide nanoparticles or nickel-molybdenum carbide nanoparticles; and the carrier is one or more of cotton fabric, a carbon felt or carbon cloth. The microbial fuel cell anode material prepared through the method has good conductivity and biocompatibility, relatively large specific surface area and a coarse electrode surface, and isbeneficial to attachment of microorganisms, formation of a biofilm is promoted and the power density of the microbial fuel cell is improved. The invention further provides a preparation method of themicrobial fuel cell anode and the microbial fuel cell.

Description

technical field [0001] The invention belongs to the technical field of microbial fuel cells, and in particular relates to a microbial fuel cell anode, a preparation method thereof and a microbial fuel cell. Background technique [0002] Microbial fuel cells (MFCs) are a new type of device that converts chemical energy into electrical energy in which microorganisms oxidize organic matter to release electrons and transfer electrons to an external circuit to form a loop. Based on this kind of electrochemical system, it can generate electricity while treating pollutants. It is considered as a green and environmental protection technology, and has attracted widespread attention in the fields of energy and environment. [0003] As a green energy source, although MFCs have many advantages, there is still a big gap compared with the power density of hydrogen-oxygen fuel cells. So far, research on microbial fuel cells is at the laboratory or small-scale level. In practical applicati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/96H01M4/90H01M4/88B82Y30/00H01M8/16
CPCB82Y30/00H01M4/88H01M4/9075H01M4/9083H01M4/96H01M8/16Y02E60/50
Inventor 何苗曾丽珍王润
Owner GUANGDONG UNIV OF TECH