Green algae biological fuel cell generating power on basis of photosynthesis

Abstract

The invention relates to a microbial fuel cell, in particular to a green algae biological fuel cell generating power on the basis of photosynthesis, which comprises a transparent cathode cell of green algae culture solution and an anode cell containing rich oxygen or oxidant solution, wherein the cathode cell and the anode cell are isolated by a proton exchange membrane; the cathode and anode of the cell are fixed in the cathode cell and the anode cell respectively; the cathode cell is isolated from the air to create an anaerobic environment in the cathode cell, hydrogen-generating green algae is used a system green algae material, an indirect-process hydrogen generation regulating technique is adopted, an electronic transfer mediator is added into the system to enable electrons which aregenerated by photosynthesis to be combined with the electronic mediator through an electron transport chain before reaching hydrogenase, the electronic mediator releases electrons at a cathode electrode, and the electrons are transferred to the anode to combine with protons passing through the proton exchange membrane and oxidant in the cathode cell to form water. In the invention, optical energycan be converted into electric energy by coupling the photosynthesis of microalgae and a cell system, and a novel biological fuel cell is provided.

Description

technical field [0001] The invention relates to a microbial fuel cell, specifically a device for directly converting light energy into electrical energy through the coupling of microalgae photosynthesis and a battery system, and is a green algae biofuel cell based on photosynthesis to generate electricity. Background technique [0002] A green algae biofuel cell is a device that uses green algae to directly convert light energy into electrical energy through photosynthesis, and belongs to the technical field of microbial fuel cells. At present, microbial fuel cells are to use microorganisms (including bacteria and microalgae, such as the patents of CN1874040 Zuo Jian'e et al., CN1360677 Jin Binghong et al.) to convert organic matter into electrical energy. Oxidation produces electrons, which are transferred to the anode and then to the cathode through an external circuit, while protons are transferred to the cathode through the proton exchange membrane. In the cathode pool, ...

AI Technical Summary

Problems solved by technology

[0004] In the indirect method of green algae photolysis of water to produce hydrogen, the system is in an anaerobic state, which is very similar to the anode pool of microbial fuel cells. Green algae biofuel cells use electron mediators between the biochemical reaction sites of microalgae and the electrodes. Electrons are transported back and forth, the mediator molecules are reduced in the cell, oxidized on the anode of the fuel cell to release electrons, and the protons diffuse to the cathode through the proton exchange membrane, so that the photosynthetic part of the indirect hydrogen production of green algae can be combined with the fuel cell Coupled to form a new type of green algae biofuel cell system that directly converts light energy into electrical energy. This device technology or results based on green algae photosynthesis to generate electricity have not been reported in the literature.

Images