Electroactive bacterium whole-cell moisture power generation device and application thereof

A power generation device and electroactive bacteria technology, applied in the direction of generators, electrical components, generators/motors, etc. that convert kinetic energy into electrical energy, can solve problems such as limiting practical applications, complicated manufacturing processes, and cumbersome assembly processes, and meet the conditions for power generation Unrestricted, simple preparation method, high power generation effect

Active Publication Date: 2021-08-10
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the device can continue to generate electricity to a certain extent, there are also very significant technical defects, such as the complicated extraction process of the bio-nanometer wire and the extremely low yield (1 gram of bio-nanometer wire / 20 grams of bacteria); The electrode is expensive and the manufacturing process is complicated; the assembly process of the device is cumbersome and complicated; the gold plate electrode in the electrode device cannot effectively export electrons from the nanowire film
These shortcomings severely limit its practical application

Method used

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  • Electroactive bacterium whole-cell moisture power generation device and application thereof
  • Electroactive bacterium whole-cell moisture power generation device and application thereof
  • Electroactive bacterium whole-cell moisture power generation device and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0069] An electroactive bacteria whole cell moisture power generation device, comprising a porous top electrode, a bottom electrode and Geobacter sulfur reducing PCA.

[0070] Concrete preparation method comprises the following steps:

[0071] (1) Preparation of whole-cell microbial film:

[0072] Get the cultivated Geobacter sulfur-reducing PCA bacterial liquid, centrifuge at 6000rpm to obtain the sulfur-reducing Geobacter PCA bacterial cell, then resuspend it quickly with ultrapure water, repeat several times, and obtain the sulfur-reducing Geobacter PCA bacterial liquid (1g wet cell / 10mL bacteria solution). Add 100 milliliters of bacterial liquid dropwise into the mold, and dry at 20°C to obtain a whole-cell microbial film of Geobacter sulfurreducens PCA with a thickness of 20 microns.

[0073] Wherein, the mold in this embodiment is: a hollow mold constructed of conductive glass (the area of ​​the hollow part is 10×10 mm).

[0074] (2) place the whole-cell microbial me...

Embodiment 2

[0076] In the embodiment of the present invention, a whole-cell moisture power generation device was prepared according to the same method as in embodiment 1. The difference between this embodiment and embodiment 1 is:

[0077] In this example, Shewanella MR-1 was used instead of Geobacter sulfurreducens PCA to prepare a whole-cell microbial film.

Embodiment 3

[0079] In the embodiment of the present invention, a whole-cell moisture power generation device was prepared according to the same method as in embodiment 1. The difference between this embodiment and embodiment 1 is:

[0080] The drying temperature of the whole-cell microbial film of Geobacter sulfurreducens PCA in this example was raised to 80°C.

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Abstract

The invention discloses an electroactive bacterium whole-cell moisture power generation device and application thereof. The electroactive bacterium whole-cell moisture power generation device comprises a top electrode, a bottom electrode and an electroactive bacterium whole-cell biological membrane; the surface of one side of the electroactive bacterium whole-cell biological membrane is connected with the top electrode in an attached mode, and the surface of the other side of the electroactive bacterium whole-cell biological membrane is connected with the bottom electrode in an attached mode. The device can continuously utilize air moisture to generate open-circuit voltage of 0-0.4 V and load current of 0-0.3 microampere (external resistance is 500 kiloohm), has the characteristics of no pollution, cleanness, sustainability, almost no limitation on power generation conditions and the like, can be applied to electric appliance power supply or large-scale power generation equipment, has higher economic, environmental and social benefits, and also has the technical potential of practical application.

Description

technical field [0001] The invention belongs to the technical field of biological power generation, and in particular relates to an electroactive bacteria whole-cell moisture power generation device and its application. Background technique [0002] The development of new energy technologies is of great significance to alleviate the pressure of fossil energy shortage and environmental pollution. However, the development of new energy sources such as solar energy, wind energy, and bio-energy cannot meet the global energy demand, and further exploration and development of new energy technologies are needed. The atmosphere is not only an important part of the earth's water cycle, but also a source of abundant renewable clean energy. Some researchers have successfully assembled a moisture power generation device by using hygroscopic materials to convert the energy contained in the gaseous water in the atmosphere into electrical energy. However, in related technologies, most of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/20H02N3/00C12R1/01
CPCC12N1/20H02N3/00Y02E60/50
Inventor 周顺桂任国平胡启昌
Owner FUJIAN AGRI & FORESTRY UNIV
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