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Nitrogen-doped Fe/Fe3C/C microbial fuel cell cathode catalyst material and preparation method thereof

A fuel cell cathode and microorganism technology, applied in battery electrodes, circuits, electrical components, etc., can solve the problem of high cost, and achieve the effects of energy saving, good conductivity, and high stability

Inactive Publication Date: 2015-03-04
哈尔滨市道外区大化化验仪器批发站
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the existing high cost problem of using platinum carbon catalyst as the cathode catalyst material of microbial fuel cells, and to provide a nitrogen-doped Fe / Fe 3 C / C microbial fuel cell cathode catalyst material and preparation method thereof

Method used

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  • Nitrogen-doped Fe/Fe3C/C microbial fuel cell cathode catalyst material and preparation method thereof
  • Nitrogen-doped Fe/Fe3C/C microbial fuel cell cathode catalyst material and preparation method thereof
  • Nitrogen-doped Fe/Fe3C/C microbial fuel cell cathode catalyst material and preparation method thereof

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specific Embodiment approach 1

[0018] Specific implementation mode 1: This implementation mode is a nitrogen-doped Fe / Fe 3 C / C microbial fuel cell cathode catalyst material, composite material prepared by iron source and carbon source, described composite material is Fe particle and Fe 3 C particles are evenly distributed in the graphitized carbon skeleton, and Fe / Fe with a particle size of 10nm to 300nm 3 C / C composite material; the mass ratio of the carbon source to the iron source is 1:(0.1-0.5).

[0019] MFCs have a large energy loss in the process of converting bioenergy into electricity. On the one hand, these losses come from Coulomb losses, that is, the organic matter in wastewater is not used for power generation, but the energy is lost in other ways; On the one hand, it comes from the energy loss caused by electrode polarization and ohmic internal resistance. In general, in the face of challenges from traditional wastewater energy technologies, one of the main tasks of MFCs research is to "reduc...

specific Embodiment approach 2

[0021] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the iron source is one or more of ferric chloride, ferric nitrate, ferric sulfate, ferrous sulfate and ferrous chloride mixture. Others are the same as the first embodiment.

[0022] When the iron source described in this embodiment is a mixture, each component in the mixture is mixed in any ratio.

specific Embodiment approach 3

[0023] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the carbon source is melamine or cyanamide. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a nitrogen-doped Fe / Fe3C / C microbial fuel cell cathode catalyst material and a preparation method thereof, and relates to a microbial fuel cell cathode catalyst material and a preparation method thereof, which aim to solve the problem that the cost is high due to a platinum-carbon catalyst adopted as the microbial fuel cell cathode catalyst material in the prior art. The nitrogen-doped Fe / Fe3C / C microbial fuel cell cathode catalyst material is a composite material prepared from a ferrum source and a carbon source, and is a composite material with Fe particles and Fe3C particles uniformly distributed on a graphitization carbon framework, and the particle diameter is 10nm-300nm. The method comprises the following steps of dissolving, water bath heating, drying, and high-temperature carbonization reduction, thereby obtaining the nitrogen-doped Fe / Fe3C / C microbial fuel cell cathode catalyst material. The preparation method is used for preparing the nitrogen-doped Fe / Fe3C / C microbial fuel cell cathode catalyst material.

Description

technical field [0001] The invention relates to a microbial fuel cell cathode catalyst material and a preparation method thereof. Background technique [0002] Microbial Fuel Cells (MFCs for short) is a new type of clean energy device that uses the catalytic action of microorganisms to convert the chemical energy of degrading organic matter in sewage into bioelectric energy. Microorganisms on the anode divide organic waste to produce protons and electrons, and the generated electrons are transferred to the anode material by the electron transfer medium, and then reach the cathode through the external circuit, thereby generating an external current, and the protons generated at the same time reach the cathode through the proton exchange membrane, The reduction reaction with electrons and oxygen at the cathode catalytic interface produces water, thereby completing the transfer of charges inside the battery. The substrate (sewage) of MFCs has a wide range of sources, high ener...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/90H01M4/88
CPCH01M4/88H01M4/90H01M4/9041H01M4/9083Y02E60/50
Inventor 邹金龙镡英子代莹李瑞王涵
Owner 哈尔滨市道外区大化化验仪器批发站
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