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Preparation method of modified anode of marine sediment microbial fuel cell

A marine sediment and fuel cell technology, which is applied in the direction of battery electrodes, circuits, electrical components, etc., can solve the problems that the conductivity of the anode cannot meet the requirements, etc., and achieve the improvement of electrochemical performance and output power, simple process, and improved conductivity. Effect

Inactive Publication Date: 2015-03-25
ZHEJIANG OCEAN UNIV
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Problems solved by technology

[0007] The technical problem mainly solved by the present invention is that the conductivity of the anode obtained by the existing preparation method cannot meet the requirements

Method used

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Embodiment Construction

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below.

[0023] A preparation method for a marine sediment microbial fuel cell modified anode, comprising the following steps:

[0024] (1) Take a diameter of 1.6 cm, a length of 10 cm, and a surface area of ​​54 cm 2 The graphite rod is used as the graphite anode, and the graphite surface is polished to smooth with 180, 360, 600, 800 sandpaper respectively;

[0025] (2) Manufacture of Mn with ferric oxide, manganese sulfate, graphite powder, kaolin and nickel chloride hexahydrate as raw materials 2+ +Fe 3 o 4 +Ni 2+ Graphite anode, wherein the particle size of graphite powder is 500 mesh, and the particle size of kaolin is 400 mesh; ferric oxide, manganese sulfate, graphite powder, kaolin and nickel chloride hexahydrate are respectively mixed according to 6%, 3%, and 58% , 30% and 2% mass ratio are mixed, and the total mass is 4 grams;

[0026] (3) After m...

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Abstract

The invention provides a preparation method of a modified anode of a marine sediment microbial fuel cell, and belongs to the technical field of a microbial fuel cell. The method comprises the steps: selecting a graphite rod with the diameter being 1.6cm, the length being 10cm and the surface area being 54cm<2> as a graphite anode, polishing the surface of the graphite to be smooth by respectively utilizing abrasive paper of 180, 360, 600 and 800, preparing a Mn<2+>+Fe3O4+Ni<2+>graphite anode from ferroferric oxide, manganese sulfate, graphite powder, kaoline and nickel chloride hexahydrate as raw materials, wherein the particle size of the graphite powder is 500 meshes, the particle size of the kaoline is 400 meshes, mixing the ferroferric oxide, the manganese sulfate, the graphite powder, the kaoline and the nickel chloride hexahydrate respectively according to a mass ratio of 6 percent, 3 percent, 58 percent, 30 percent and 2 percent, wherein the total mass of the ferroferric oxide, the manganese sulfate, the graphite powder, the kaoline and the nickel chloride hexahydrate is 4g. The method has advantages that the conductivity of a composite cathode prepared by adopting the method is obviously improved.

Description

technical field [0001] The invention relates to a method for preparing a modified anode of a marine sediment microbial fuel cell, belonging to the technical field of microbial fuel cells. Background technique [0002] Sediment microbial fuel cells (SMFCs) are a typical non-membrane microbial fuel cell. The organic matter in the sediment is oxidized and decomposed by the indigenous microorganisms in the sediment near the anode area, and the electrons generated are transferred to the anode, and then reach the cathode through an external circuit, and the oxygen in the cathode area and from the anode area The transferred protons combine to form water, thereby achieving the purpose of generating electric current while removing organic pollutants in the sediment. [0003] Sediment microbial fuel cells (SMFCs) can not only provide low-power power supply for long-term monitoring instruments of marine or inland water bodies, but also can be used for in-situ bioremediation of sedimen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/88H01M4/90H01M4/96
CPCY02E60/50
Inventor 王健鑫王世来楼然苗
Owner ZHEJIANG OCEAN UNIV
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