Preparation and application of iron oxide/polyaniline composite anode

A composite anode, iron oxide technology, used in battery electrodes, biochemical fuel cells, electrical components, etc.

Inactive Publication Date: 2011-05-25
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The use of this composite anode to increase the output power de

Method used

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  • Preparation and application of iron oxide/polyaniline composite anode
  • Preparation and application of iron oxide/polyaniline composite anode
  • Preparation and application of iron oxide/polyaniline composite anode

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0042] Example 1: This example is used to illustrate the preparation method of iron oxide / polyaniline composite anode.

[0043] Take 2.140g FeCl 2 ·4H 2 O and 4.967g FeCl 3 ·6H 2 O, 60mL of distilled water was added to a 250mL three-necked round bottom flask, quickly stirred until the iron salt was completely dissolved, and the temperature was raised to 40°C, 20mL of concentrated ammonia was added, and after vigorous stirring for 30 minutes, the system changed from transparent yellow-green to black. Then the temperature was raised to 80°C, the temperature was maintained for 30 min, and then it was lowered to room temperature, and the product was separated and collected by a magnetic field. Stir and disperse the product with deionized water, and separate again with a magnetic field. The above process is repeated many times until there is no free Cl - . Add 50ml of distilled water and 1.25g of camphorsulfonic acid to a 250ml three-necked round-bottom flask, mix and stir for 15min, ...

Example Embodiment

[0044] Example 2: This example is used to illustrate the preparation method of the iron oxide / polyaniline composite anode.

[0045] Take 1.070g FeCl 2 ·4H 2 O and 2.483g FeCl 3 ·6H 2 O, 60mL of distilled water was added to a 250mL three-necked round bottom flask, quickly stirred until the iron salt was completely dissolved, and the temperature was raised to 40°C, 20mL of concentrated ammonia was added, and after vigorous stirring for 30 minutes, the system changed from transparent yellow-green to black. Then the temperature was raised to 80°C, the temperature was maintained for 30 min, and then it was lowered to room temperature, and the product was separated and collected by a magnetic field. Stir and disperse the product with deionized water, and separate again with a magnetic field. The above process is repeated many times until there is no free Cl - . Add 50ml of distilled water and 1.25g of camphorsulfonic acid to a 250ml three-necked round-bottom flask, mix and stir for 15m...

Example Embodiment

[0046] Example 3: This example is used to illustrate the preparation method of the iron oxide / polyaniline composite anode.

[0047] Take 4.280g FeCl 2 ·4H 2 O and 9.934g FeCl 3 ·6H 2 O, 60mL of distilled water was added to a 250mL three-necked round bottom flask, quickly stirred until the iron salt was completely dissolved, and the temperature was raised to 40°C, 20mL of concentrated ammonia was added, and after vigorous stirring for 30 minutes, the system changed from transparent yellow-green to black. Then the temperature was raised to 80°C, the temperature was maintained for 30 min, and then it was lowered to room temperature, and the product was separated and collected by a magnetic field. Stir and disperse the product with deionized water, and separate again with a magnetic field. The above process is repeated many times until there is no free Cl - . Add 50ml of distilled water and 1.25g of camphorsulfonic acid to a 250ml three-necked round-bottom flask, mix and stir for 15m...

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Abstract

The invention relates to the technical field of microbial fuel cells and provides preparation and application of a microbial fuel cell composite anode. The composite anode contains an iron oxide/polyaniline composite material so as to remarkably improve the output power density of the cell. The preparation method of the composite anode comprises the preparation of the iron oxide/polyaniline composite material and the pressing of the composite anode. By using the composite anode, a marine bottom microbial fuel cell and a sewage microbial fuel cell which contain marine bottom sediments are assembled and the specific test analysis method for the cell performance can be given out. The result shows that the output power density of the cell is greatly improved and the output power density of the assembled cell of the iron oxide/polyaniline composite anode reaches 300mW/m<2> which is 30 times that of the unmodified anode.

Description

technical field [0001] The invention belongs to the technical field of microbial fuel cells, and in particular relates to the preparation of an iron oxide / polyaniline composite anode and its application in microbial fuel cells. Background technique [0002] Microbial fuel cell (MFC) demonstrates a new way to generate electricity from biomass under the catalysis of microorganisms [1，2] . It is a device that converts chemical energy in organic or inorganic substances into electrical energy, and microorganisms play a biocatalytic role in the conversion process. Due to the barrier of the cell membrane, the electrons generated by metabolic reactions in most microbial cells cannot be transferred to the outside of the cell, so they do not show direct electrochemical activity. For this reason, microbial fuel cells generally need to use certain small molecule redox active substances (also known as mediators, Mediator) as electron shuttle carriers to transfer intracellular electrons...

Claims

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Application Information

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IPC IPC(8): H01M4/88H01M4/96H01M8/16
CPCY02E60/527Y02E60/50
Inventor 付玉彬张少云赵仲凯
Owner OCEAN UNIV OF CHINA
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