Microbial fuel cell anode biochar composite material and preparation method thereof

A fuel cell and composite material technology, applied in battery electrodes, circuits, electrical components, etc., can solve problems such as low power density and current density, low power density and current density, and low power production, and achieve improved power production performance. Material cost, effect of reducing production cost

Inactive Publication Date: 2020-06-05
SHANDONG JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the problems of low power density and current density existing in existing microbial fuel cells, the present invention discloses a microbial fuel cell anode biochar composite material and a preparation method thereof
The method not only improves the problems of low power generation, low power density and low current density of the current microbial fuel cell, but also has simple manufacturing method, low cost and wide source of raw materials

Method used

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  • Microbial fuel cell anode biochar composite material and preparation method thereof
  • Microbial fuel cell anode biochar composite material and preparation method thereof
  • Microbial fuel cell anode biochar composite material and preparation method thereof

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specific Embodiment 1

[0049] Such as figure 2 Shown: a preparation method of microbial fuel cell anode biochar composite material, comprising the following steps:

[0050] (1) Preparation of biochar anode:

[0051] (11) Wash the peanut shells with water to remove the dirt on the surface, then cut the peanut shells into squares, then dry them at 85°C for 1.5 hours, and dry them for later use;

[0052] (12), under the condition of isolating the air, the electric resistance furnace is heated to 400° C., and then the dried peanut shells obtained in step (11) are placed therein for carbonization for 15 minutes, and then cooled to room temperature with the furnace to obtain a biochar anode;

[0053] (2) Preparation of microbial fuel cell anode biochar composite material:

[0054] (21), dissolving the graphene oxide mother liquor in deionized water, and configuring it to a concentration of 0.075mg / ml -1 Graphene oxide aqueous solution, after ultrasonic 25min under ice bath condition, enter step (22) a...

specific Embodiment 2

[0065] A preparation method of microbial fuel cell anode biochar composite material, comprising the following steps:

[0066] (1) Preparation of biochar anode:

[0067] (11) Wash the peanut shells with water to remove the dirt on the surface, then cut the peanut shells into squares, then dry them at 80°C for 2 hours, and dry them for later use;

[0068] (12), the electric resistance furnace is heated to 380° C. under the condition of isolating the air, and then the dried peanut shells obtained in step (11) are placed therein for carbonization for 20 minutes, and then cooled to room temperature with the furnace to obtain a biochar anode;

[0069] (2) Preparation of microbial fuel cell anode biochar composite material:

[0070] (21) Dissolve the graphene oxide mother liquor in deionized water and configure it to a concentration of 0.05mg / ml -1 Graphene oxide aqueous solution, after ultrasonic 20min under ice bath condition, enter step (22) after finishing;

[0071] (22) Use a...

specific Embodiment 3

[0081] A preparation method of microbial fuel cell anode biochar composite material, comprising the following steps:

[0082] (1) Preparation of biochar anode:

[0083] (11) Wash the peanut shells with water to remove the dirt on the surface, then cut the peanut shells into squares, then dry them at 90°C for 1 hour, and dry them for later use;

[0084] (12), under the condition of air isolation, the electric resistance furnace is heated to 420° C., and then the dried peanut shells obtained in step (11) are placed therein for carbonization for 10 minutes, and then cooled to room temperature with the furnace to obtain a biochar anode;

[0085] (2) Preparation of microbial fuel cell anode biochar composite material:

[0086] (21), dissolving the graphene oxide mother liquor in deionized water, and configuring it to a concentration of 0.1mg / ml -1 Graphene oxide aqueous solution, after ultrasonic 30min under ice bath condition, enter step (22) after finishing;

[0087] (22) Use ...

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Abstract

The invention discloses a preparation method of a microbial fuel cell anode biochar composite material. The preparation method comprises the steps of (1) preparing a biochar anode; and (2) preparing the anode biochar composite material of the microbial fuel cell. The invention further discloses the microbial fuel cell anode biochar composite material prepared by the method. According to the microbial fuel cell anode biochar composite material disclosed by the invention, the biochar anode is modified by utilizing a graphene/polyaniline composite material; compared with a traditional anode material, the novel biochar anode has better biocompatibility and good electrochemical performance; the modified electrode can effectively exert the advantages of good GO conductivity and high PANI biocompatibility; and the electricity generation performance of the MFC is remarkably improved.

Description

technical field [0001] The invention relates to the field of manufacturing electrode materials for microbial fuel cells, in particular to an anode biochar composite material for microbial fuel cells and a preparation method thereof. Background technique [0002] Microbial fuel cell (MFC) technology can directly convert the chemical energy contained in organic matter into electrical energy through microorganisms on the anode, so it is regarded as a sustainable and environmentally friendly technology. , seawater desalination, electrolytic hydrogen production and other aspects have great application potential. However, the low output power density and current density limit the practical application of MFCs. Therefore, many related studies are devoted to improving its power density and current density. [0003] The power density and current density of MFC are related to many factors, such as the type of microorganisms, electrode materials and structures, substrates, proton mem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/86H01M4/88H01M4/90
CPCH01M4/8657H01M4/8853H01M4/9008H01M4/9083H01M2004/8689Y02E60/50
Inventor 张少君佟伟王明雨
Owner SHANDONG JIAOTONG UNIV
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