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Solar fuel cell and preparation method thereof

A fuel cell and solar energy technology, applied in battery electrodes, circuits, electrical components, etc., can solve the problems of high price, low fuel utilization rate, and shortened electrode service life, so as to improve service life, improve catalytic efficiency, and reduce use costs. Effect

Inactive Publication Date: 2014-01-22
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the disadvantages of the current fuel cell, which are expensive, the electrode is easily poisoned, the service life of the electrode is reduced, and the utilization rate of the fuel is low. Battery fuel utilization and improved electrode life

Method used

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  • Solar fuel cell and preparation method thereof
  • Solar fuel cell and preparation method thereof
  • Solar fuel cell and preparation method thereof

Examples

Experimental program
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Embodiment 1

[0030] then follow figure 1 As shown, assemble the fuel cell. Platinum titanium mesh (or platinum sheet) is used as the counter electrode 9, the external structure is made of polytetrafluoroethylene (or plexiglass and other materials) as the structural frame 11, the upper part is sealed by a sealing plug 7, and the two electrodes are connected by a wire 1.

[0031] In this example, the method of synthesizing the modified gold nanospheres dropwise added to the working electrode is to add 0.1ml of sodium citrate (0.1M) to 0.12mM chloroauric acid and heat in a water bath at 60°C for 2 hours to obtain the diameter 13nm gold nanosphere structure, configured as a solution (10M). Drop gold nanospheres on the micro-copper grid for transmission electron microscope characterization, the characterization results are as follows figure 2 shown.

[0032] In this embodiment, the transparent electrode 3 (ITO conductive glass, length × width: 3 × 2cm) was washed three times with acetone, e...

Embodiment 2

[0038] The difference between the design and preparation method of the novel solar fuel cell and electrode of the present embodiment and the embodiment 1 is that the gold nano-octahedron is dropped and modified on the working electrode, and the synthesis method is 20ml ethylene glycol solution, 0.4ml poly Dimethyl diallyl ammonium chloride solution, and 0.1ml hydrochloric acid solution (concentration: 1M), after stirring for 2 minutes, add 0.4ml chloroauric acid (24mM), and react at 195°C for 30 minutes. The gold nano-octahedron was dropped onto the micro-copper grid for transmission electron microscope characterization. The characterization results are as follows: image 3 shown.

[0039] In this embodiment, the working voltage is set to 0.5V, and the fuel cell working test is performed. Put the fuel cell system in a dark room, first conduct a 2000s no-light current test, and wait for the response current to stabilize. Select a visible light source, directly irradiate the w...

Embodiment 3

[0041] The difference between the design and preparation method of the new solar fuel cell and electrode of this embodiment and that of Example 1 is that what is added dropwise on the working electrode is silver nanocubes, and the synthesis method is that 60ml of ethylene glycol solution is heated at 150 degrees Celsius 50 minutes, then add 0.7ml of sodium hydrosulfide solution, 15ml of PVP (0.18mM), 8 minutes later, add 5ml of silver nitrate (0.28M), and obtain after 20 minutes of reaction. Drop the silver nanocubes on the micro-copper grid for transmission electron microscope characterization. The characterization results are as follows: Figure 4 shown.

[0042] In this embodiment, the working voltage is set to 0.40V, and the fuel cell working test is performed. Put the fuel cell system in a dark room, first conduct a 2000s no-light current test, and wait for the response current to stabilize. Select a visible light source, directly irradiate the working electrode, and te...

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Abstract

The invention relates to a solar fuel cell formed by enhancing the catalytic reaction of a positive electrode and a negative electrode of a fuel cell via a surface plasmon polariton resonance field, and a preparation method of the solar fuel cell. The solar fuel cell comprises a transparent working electrode, a counter electrode, an electrolyte, a Nafion semipermeable membrane, a fuel inlet, an oxygen inlet and an oxygen outlet, wherein the transparent working electrode and the counter electrode are arranged in a frame, the electrolyte is sealed between the transparent working electrode and the counter electrode, the Nafion semipermeable membrane is arranged between the transparent working electrode and the counter electrode, and the fuel inlet, the oxygen inlet and the oxygen outlet are led into the electrolyte, wherein a metal nanoparticle layer having the granularity within 5nm to 500nm is assembled on the inner side of the transparent working electrode. A metal nanoparticles catalyst with the plasmon polariton resonance characteristic is arranged on the surface of the working electrode, so that the catalytic efficiency of an electrode catalyst of the fuel cell is effectively improved by utilizing the enhancement effect of the generated surface plasmon polariton resonance field under the irradiation of visible light, and the service life of the electrode is prolonged.

Description

technical field [0001] The invention relates to a solar fuel cell which utilizes surface plasmon resonance field to enhance the catalytic reaction of positive and negative electrodes of the fuel cell and a preparation method thereof. Background technique [0002] With the increasing demand for energy in our country and the world and the concern of human beings on environmental quality, it is imperative to adopt environmentally friendly and efficient energy utilization methods and actively develop new energy sources. A fuel cell is a power generation device that can directly convert the chemical energy of fuel and oxidant provided by the outside into electrical energy, and has the characteristics of high efficiency and environmental friendliness. However, the catalysts used in the electrodes of fuel cells are mostly platinum-based materials, which has the disadvantage of being expensive. In addition, the poisoning phenomenon of the fuel cell electrode causes the service life...

Claims

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Application Information

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IPC IPC(8): H01M4/86H01M4/88
CPCH01M4/8842H01M4/9041H01M4/9075Y02E60/50
Inventor 崔小强郑伟涛王其钰
Owner JILIN UNIV
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