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Photo-assisted microorganism fuel battery

A technology of fuel cells and microorganisms, applied in biochemical fuel cells, battery electrodes, circuits, etc., can solve the problems that the output power density cannot meet the actual requirements, and achieve the effects of improving energy utilization efficiency, increasing energy output, and enhancing energy output

Active Publication Date: 2017-05-17
NANJING UNIV
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  • Claims
  • Application Information

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Problems solved by technology

However, it is still far away for MFC to be used as a power source in actual production and life. The main reason is that the output power density is far from meeting the actual requirements, which is about two orders of magnitude smaller than that of general chemical fuel cells.

Method used

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Embodiment Construction

[0030] The present invention will be further elaborated below through specific embodiments in conjunction with the accompanying drawings.

[0031] Such as figure 1 As shown, the three-dimensional nitrogen-doped graphene anode of this embodiment assists in the construction of a new light-assisted microbial fuel cell system, including: microorganisms 1, anode chamber 2, proton exchange membrane 3, cathode chamber 4, and three-dimensional overall nitrogen-doped graphene anode 5 , visible light responsive photo-assist cathode 6, external circuit load 7. Wherein, the anode chamber 2 and the cathode chamber 4 are separated by a proton exchange membrane 3, and the three-dimensional integral nitrogen-doped graphene anode 5 and the photoassisted cathode 6 responding to visible light are respectively placed in the anode chamber 2 and the cathode chamber 3. An external circuit load 7 is connected in series between 5 and 6.

[0032] The construction method of the three-dimensional nitro...

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Abstract

The invention discloses a photo-assisted microorganism fuel battery which comprises a photo-responded semiconductor photo-assisted cathode (6), a cathode chamber (4) of the photo-responded semiconductor photo-assisted cathode (6), a three-dimensional overall nitrogen-doped graphene self-supported foamed anode (5), microorganisms (1) of the three-dimensional overall nitrogen-doped graphene self-supported foamed anode (5), an anode chamber (2), a proton exchange membrane 3 and a load (7), wherein organic matters which can be oxidized and microorganisms (1) are placed inside the anode chamber (2); the three-dimensional overall nitrogen-doped graphene self-supported foamed anode (5) and the photo-responded semiconductor photo-assisted cathode (6) are respectively placed in the anode chamber (2) and the cathode chamber (4); the load (7) is serially connected between an outer anode and a cathode of a battery slot, so that a three-dimensional nitrogen doped graphene anode assisted photo-assisted microorganism fuel battery system can be formed. A P-type semiconductor photo-assisted cathode with visible light response is adopted to establish a novel photo-assisted microorganism fuel battery system. Simultaneous utilization of biomass energy and solar energy can be achieved, and the energy utilization efficiency and the power output density can be remarkably improved.

Description

technical field [0001] The invention relates to the field of biological energy, in particular to a kind of three-dimensional nitrogen-doped graphene as a biological anode, which is used to assist in the construction of a new light-assisted microbial fuel cell that utilizes solar energy to enhance energy output. Background technique [0002] At present, the energy crisis and environmental pollution are two serious challenges faced by almost all industrialized countries, so it has become the consensus of the whole world to seek clean, efficient and green energy technologies for sustainable development. Among the many energy technologies waiting to be developed, microbial fuel cell (MFC) may become a pillar industry of organic waste energy in the future due to its unique advantages of sewage power generation and energy regeneration. In 1911, British botanist Potter used Pt as an electrode, put it into the culture solution of yeast and Escherichia coli, and found that the use of...

Claims

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Application Information

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IPC IPC(8): H01M8/16H01M4/96
CPCH01M4/96H01M8/16Y02E60/50
Inventor 张剑荣郭丹
Owner NANJING UNIV
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