Supercharge Your Innovation With Domain-Expert AI Agents!

a kind of wo 3 /fe 2 o 3 /mn 3 o 4 Preparation method of composite photoanode film

An anode film, composite light technology, applied in electrodes, liquid chemical plating, coatings, etc., can solve problems such as stability decline, and achieve the effects of improving stability, improving efficiency, and simple operation

Active Publication Date: 2020-05-19
TAIZHOU UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And the accumulation of peroxygen species, resulting in WO 3 Decreased stability

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • a kind of wo <sub>3</sub> /fe <sub>2</sub> o <sub>3</sub> /mn <sub>3</sub> o <sub>4</sub> Preparation method of composite photoanode film
  • a kind of wo <sub>3</sub> /fe <sub>2</sub> o <sub>3</sub> /mn <sub>3</sub> o <sub>4</sub> Preparation method of composite photoanode film
  • a kind of wo <sub>3</sub> /fe <sub>2</sub> o <sub>3</sub> /mn <sub>3</sub> o <sub>4</sub> Preparation method of composite photoanode film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A kind of WO 3 / Fe 2 o 3 / Mn 3 o 4 The preparation method of composite photoanode film, concrete steps are as follows:

[0018] Dissolve 0.12g sodium tungstate in 15ml aqueous solution, add 1.25ml concentrated hydrochloric acid dropwise; then, dissolve 0.11g ammonium oxalate in 15ml aqueous solution, slowly add to the above sodium tungstate solution, stir for 30min; transfer to 50ml hydrothermal In the reaction kettle, put FTO conductive glass, heat water at 140°C for 6h, cool, wash with water, dry in air, and calcinate at 500°C for 2h to obtain WO 3 Thin film electrode; weigh 0.81g of FeCl 3 , add 50mL of ethanol, stir for 30min, get FeCl 3 Colloidal solution, further to WO 3 Spin-coat 100 μL of the above-mentioned colloid on the film, remove the conductive glass after spin-coating, and dry it at room temperature, then put it in a muffle furnace for calcination at 350°C for 5 minutes, take it out and spin-coat again, repeat the above operation once; weigh 0.88g ...

Embodiment 2

[0021] A kind of WO 3 / Fe 2 o 3 / Mn 3 o 4 The preparation method of composite photoanode film, concrete steps are as follows:

[0022] Dissolve 0.12g sodium tungstate in 15ml aqueous solution, add 1.25ml concentrated hydrochloric acid dropwise; then, dissolve 0.11g ammonium oxalate in 15ml aqueous solution, slowly add to the above sodium tungstate solution, stir for 30min; transfer to 50ml hydrothermal In the reaction kettle, put FTO conductive glass, heat water at 140°C for 6h, cool, wash with water, dry in air, and calcinate at 500°C for 2h to obtain WO 3 Membrane electrode: Weigh 1g of ferric nitrate, add 50mL of ethanol, stir for 30min to obtain ferric nitrate colloidal solution, and add to WO 3 Spin-coat 100 μL of the above-mentioned colloid on the film, remove the conductive glass after spin-coating, and dry it at room temperature, then put it in a muffle furnace for calcination at 350°C for 5 minutes, take it out and spin-coat again, repeat the above operation once...

Embodiment 3

[0025] A kind of WO 3 / Fe 2 o 3 / Mn 3 o 4 The preparation method of composite photoanode film, concrete steps are as follows:

[0026] Dissolve 0.12g sodium tungstate in 15ml aqueous solution, add 1.25ml concentrated hydrochloric acid dropwise; then, dissolve 0.11g ammonium oxalate in 15ml aqueous solution, slowly add to the above sodium tungstate solution, stir for 30min; transfer to 50ml hydrothermal In the reaction kettle, put FTO conductive glass, heat water at 140°C for 6h, cool, wash with water, dry in air, and calcinate at 500°C for 2h to obtain WO 3 Membrane electrode; Weigh the ferric sulfate of 0.6g, add the ethanol of 50mL, stir 30min, obtain ferric sulfate colloidal solution, add to WO 3 Spin-coat 100 μL of the above-mentioned colloid on the film, remove the conductive glass after spin-coating, and dry it at room temperature, then put it in a muffle furnace for calcination at 350°C for 5 minutes, take it out and spin-coat again, repeat the above operation twic...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a preparation method of a WO3 / Fe2O3 / Mn3O4 composite photoanode film, and belongs to the technical field of photoelectric catalysis. The composite photoelectrode can absorb visible light and realize long-term stable operation in the photoelectrocatalysis decomposition process of water, and is a photoanode material with great application potentiality. The preparation methodof the photoanode film mainly comprises the following steps: performing a hydrothermal reaction at 140 DEG C for 6 h to prepare a WO3 film electrode; preparing a colloidal solution of an iron salt, performing spin coating on the surface of the WO3 film by the colloidal solution, and performing calcination at a high temperature to obtain a WO3 / Fe2O3 film electrode; and performing a hydrothermal reaction to prepare Mn3O4 nanoparticles, ultrasonically dispersing the Mn3O4 nanoparticles into an ethanol solution, performing spin coating on the surface of the WO3 / Fe2O3 film electrode, and performingcalcination at a high temperature in N2 atmosphere to obtain the ternary composite photoelectrode material. Raw materials required by preparation of the composite photoelectrode provided by the invention have abundant earth reserves and low costs, and the composite photoelectrode has better application prospects in the field of energy sources.

Description

technical field [0001] The present invention relates to a WO 3 / Fe 2 o 3 / Mn 3 o 4 A method for preparing a composite photoanode film belongs to the field of photoelectric catalysis technology. More specifically, the invention provides a WO with high photocatalytic activity, high stability and high selectivity. 3 / Fe 2 o 3 / Mn 3 o 4 A method for preparing a ternary composite photoelectrode. Background technique [0002] Photocatalytic water splitting technology is a green and environmentally friendly way to use solar energy to prepare fuel. It uses semiconductor photoelectrode materials to absorb solar energy. With the assistance of a small amount of bias voltage, it can effectively inhibit the recombination of photogenerated carriers and achieve efficient water splitting to produce hydrogen. . Due to the separation of the two reactions of oxidation and reduction in space, hydrogen and oxygen are separated at the cathode and anode respectively, avoiding the H 2 an...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C25B11/06C25B1/04C23C18/12
CPCC23C18/1216C23C18/1225C25B1/04C25B1/55C25B11/091Y02E60/36
Inventor 熊贤强武承林范利亚齐子巽
Owner TAIZHOU UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com