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a ti 4 o 7 Preparation method of porous electrode and microbial fuel cell

A technology of fuel cells and porous electrodes, applied in biochemical fuel cells, battery electrodes, circuits, etc., to achieve the effects of cheap, easy to obtain, and cost reduction

Active Publication Date: 2021-11-02
DONGGUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention is mainly oriented to the current demand for waste water resource treatment, aiming at the urgent need of MFC to improve the efficiency of electric energy recovery, and to solve the restrictive problem of large-scale application of MFC anode materials, and provides a Ti 4 o 7 A method for preparing a porous electrode, and using the electrode in a multi-anode shared-cathode MFC system to improve the power generation performance of MFC and lay a foundation for the practical application of MFC technology to realize waste water recycling

Method used

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  • a ti <sub>4</sub> o <sub>7</sub> Preparation method of porous electrode and microbial fuel cell
  • a ti <sub>4</sub> o <sub>7</sub> Preparation method of porous electrode and microbial fuel cell
  • a ti <sub>4</sub> o <sub>7</sub> Preparation method of porous electrode and microbial fuel cell

Examples

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Embodiment 1

[0035] Using the grinding method, grind NaCl particles with a particle size of 300 μm, and sieve them with a sieve, weigh 0.5 g of NaCl particles with a particle size of 60–100 μm; weigh 0.5 g of NaCl particles with a particle size of 2–5 μm Ti 4 o 7 1.0 g of particles, wet mixing of two kinds of particles, wet mixing refers to using 0.25g of absolute ethanol to uniformly mix NaCl particles and Ti 4 o 7 pellets, absolute ethanol was then evaporated completely. A total of 1.5 g of the mixed powder was placed in an SPS graphite instrument for sintering. The SPS sintering program is 0~570°C, 2.5 min; 570~600°C, 1 min; 600~700°C, 2 min; 700~770°C, 2.5 min; 770°C, 13 min; A disc with a diameter of 2 cm and a thickness of 2 mm. The wafer was heated in wastewater for 5 h to dissolve the NaCl, thereby preparing Ti with a pore size of 60–100 μm. 4 o 7 Porous electrodes (such as image 3 shown).

[0036] A plexiglass reactor with a length of 5 cm, a width of 2 cm, and a height ...

Embodiment 2

[0038] Same as Example 1, the difference is that the NaCl particles with a particle size of 300 μm are recrystallized and ground, and 0.5 g of NaCl particles with a particle size of 300-500 μm are weighed, and 0.5 g of absolute ethanol is used for wet mixing to prepare a pore size 300~500 μm Ti 4 o 7 Porous electrodes (such as Figure 4 shown), and used as an MFC anode for electricity generation performance testing.

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PUM

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Abstract

The invention discloses a Ti 4 o 7 The preparation method of the porous electrode and the microbial fuel cell, as the application of recovering electric energy from sewage, belong to the field of sewage treatment and resource utilization. Ti proposed by the present invention 4 o 7 The porous electrode uses Ti 4 o 7 Particles are used as raw materials, which are prepared by the template method of sodium chloride NaCl using plasma sintering technology (SPS). The pore size of the electrode is 60-100 μm, and it is used as the anode of MFC. Compared with the traditional carbon cloth electrode, the power generation performance of MFC can be improved, and the power density is increased by 2.4 times. The porous electrode with a pore size of 60-100 μm has a larger specific surface area, provides more active sites, and can load more functional microorganisms, which is conducive to the electron transfer between the microorganisms and the electrode interface, and has obvious advantages in improving the power generation performance of MFC. Ti according to the present invention 4 o 7 The preparation method of the porous electrode is simple and fast, which enhances the power generation performance of the MFC and improves the practical application potential of the MFC technology.

Description

technical field [0001] The invention relates to the technology in the field of sewage treatment and resource utilization, in particular to a Ti 4 o 7 A preparation method of a porous electrode and its application as an anode of a microbial fuel cell for efficient recovery of electrical energy. Background technique [0002] The organic pollutants contained in sewage contain abundant chemical energy, which is 9 to 10 times the energy required for water treatment. Realizing energy self-sufficiency or production capacity of sewage treatment, and promoting the development of water treatment in the direction of resource utilization and sustainability are important directions of water treatment technology reform today. [0003] Microbial fuel cell (MFC) technology uses microorganisms as a catalyst to convert the chemical energy of organic matter in sewage into electrical energy that can be directly used. It has a wide range of substrate utilization, is less affected by temperatur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/86H01M4/88H01M8/16
CPCH01M4/8605H01M4/8878H01M4/8882H01M8/16Y02E60/50
Inventor 杨立辉林辉吕斯濠陈加娇杨文剑李威刘倩
Owner DONGGUAN UNIV OF TECH