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Photoelectrode of photoelectrochemical cell and preparing and processing method thereof

A technology of photoelectrochemical cells and processing methods, which is applied in the field of photoelectrode cells and their preparation and processing, can solve the problems of limited specific surface area of ​​photoelectrodes, limited electrolyte contact area, and low efficiency of photolysis of water, etc. The effect of water splitting efficiency, short minority carrier diffusion distance, and great application value

Inactive Publication Date: 2018-10-12
NANJING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, no matter what means are used, the specific surface area of ​​the photoelectrode is limited, the light trapping property is weak, and the contact area with the electrolyte is limited, so the efficiency of photolysis of water is low.

Method used

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  • Photoelectrode of photoelectrochemical cell and preparing and processing method thereof
  • Photoelectrode of photoelectrochemical cell and preparing and processing method thereof

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Embodiment Construction

[0035] Specific embodiments of the present invention are described in detail below, but it should be understood that the protection scope of the present invention is not limited by specific embodiments.

[0036] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

[0037] The methods are conventional methods unless otherwise specified. The raw materials can be obtained from public commercial sources unless otherwise specified, and no further purification treatment is performed.

[0038] Such as figure 1 Shown, the photoelectrochemical photoelectrode of the present invention, its structure comprises conductive substrate, can be but not limited to ITO on glass substrate or flexible substrate, FTO and AZO transparent conductive film; Semicond...

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Abstract

The invention discloses a processing method of a photoelectrode of a photoelectrochemical hydrolysis cell. The processing method comprises the steps that a WO3 compact layer is formed between a conducting substrate and a WO3 nano-porous layer in a deposition mode; and the WO3 nano-porous layer is modified by an ammonium metatungstate methanol solution. The magnitude of the photocurrent of a processed photoanode is 19 times that of the photocurrent existing before the photoelectrode is processed. By the adoption of the preparing and processing method of the photoanode, the process is simple, separation and transmission of the electric charge are facilitated, and the electrode performance can be substantially improved. The method is economical and environmentally friendly, and can be appliedto large-scale production and preparation of the photoelectrodes.

Description

Technical field: [0001] The invention relates to a photoelectrode of a photoelectrochemical cell and a preparation and treatment method thereof, belonging to the technical field of the photoelectrochemical cell field. Background technique: [0002] With the continuous development of society and the improvement of people's living standards, it brings about a large amount of energy consumption and serious deterioration of the environment. Among them, the energy crisis is becoming more and more serious. In order to solve this problem, countries all over the world are vigorously developing new and available clean energy. Solar energy is by far the largest clean energy source, the power of solar radiation is 1000 W / m 2 , the solar energy that irradiates the earth every year is about 10,000 times the total amount of energy consumed each year. Therefore, effective use of solar energy is the best way to solve the energy crisis in today's society. [0003] However, a big problem w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B1/04C25B11/06H01M14/00
CPCC25B1/04C25B1/55C25B11/051C25B11/077H01M14/005Y02E60/36Y02P20/133
Inventor 高志强密保秀曹大鹏王杰
Owner NANJING UNIV OF POSTS & TELECOMM
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