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Novel three-dimensional nano carbon/stainless steel mesh compound biological anode as well as preparation method and application thereof

A stainless steel mesh, three-dimensional nanotechnology, applied in battery electrodes, electrical components, circuits, etc., can solve problems such as reducing the corrosion resistance of stainless steel substrates and application limitations of nano-carbon/stainless steel composite electrodes.

Inactive Publication Date: 2014-08-06
JIANGXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, high-temperature heat treatment will change the crystal structure and element distribution of metals in stainless steel, resulting in element segregation, which greatly reduces the corrosion resistance of stainless steel substrates.
Therefore, the application of nano-carbon / stainless steel composite electrodes prepared by this method in MFC is greatly limited.

Method used

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  • Novel three-dimensional nano carbon/stainless steel mesh compound biological anode as well as preparation method and application thereof
  • Novel three-dimensional nano carbon/stainless steel mesh compound biological anode as well as preparation method and application thereof
  • Novel three-dimensional nano carbon/stainless steel mesh compound biological anode as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0025] 1. Preparation and power generation performance test of single-layer nano-carbon / stainless steel mesh composite anode

[0026] Soak 304 stainless steel mesh with 50 mesh in 1 mol / L sulfuric acid solution for 1 hour, clean it with distilled water, immerse it in 5 g / L carbon black / alcohol dispersion, take it out and dry it, and repeat soaking / drying step 3 times to obtain a single-layer nano-carbon / stainless steel mesh composite anode.

[0027] Select stainless steel nets of different materials or meshes, and repeat the above steps to prepare nano-carbon / stainless steel net composite anodes with different pore sizes.

[0028] For the test conditions of the anode performance, see [Guanghua He, Yanli Gu, Shuijian He, Uwe Schreoer, Shuiliang Chen, Haoqing Hou. Effect of fiber diameter on the behavior of biofilm and anodic performance of fiber electrodes in microbial fuel cells. Bioresour. Technol. 10763-10766 (2011)], the specific experimental process is as follows: the ...

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Abstract

The invention discloses a novel three-dimensional nano carbon / stainless steel mesh compound biological anode as well as a preparation method and application thereof. The three-dimensional biological anode adopts nano carbon and stainless steel mesh as raw materials, and is formed through folding and sorption assembly construction. The three-dimensional nano carbon / stainless steel mesh compound biological anode displays excellent electric conductivity and mechanical property, is easy to process and form, and is provided with excellent microbic electrochemical property in a microbic fuel cell (MFE); the produced area electric current density is up to 40-300 A / m<2>; the volume electric current density is up to 5-35 kA / m<3>; the electrode material can be taken as an anode of an MFE, and is applied to the field of sewage disposal, biological remediation, and the like.

Description

technical field [0001] The invention relates to a novel three-dimensional nano-carbon / stainless steel mesh composite biological anode, a preparation method and application thereof. Background technique [0002] The cost and performance of electrode materials play a very critical role in the development and application of microbial electrochemical systems like microbial fuel cells (MFCs). Carbon materials have good stability and microbial adhesion properties, so carbon materials with different structures and their composites have been widely used as electrode materials or current collectors for MFCs. They can be mainly divided into two categories: (1) bulk or Granular porous carbon materials, such as carbon paper, carbon fiber felt, reticulated glassy carbon (RVC), stacked carbon particles and graphite fiber brushes, three-dimensional porous carbon materials based on natural resources, etc.; (2) powdered carbon materials, Such as carbon nanotubes, graphene, activated carbon ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/86H01M4/88
CPCY02E60/50H01M4/8652H01M4/8875
Inventor 陈水亮侯豪情郑苏琪
Owner JIANGXI NORMAL UNIV
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