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A kind of silver-iron oxide composite structure thin film and its preparation method and application

An iron oxide, composite structure technology, applied in structural parts, photosensitive equipment, electrolytic capacitors, etc., can solve the problems of difficult powder dispersion, uneven coating film, weak adhesion, etc., to achieve firm adhesion, uniform membrane electrode, Pore ​​structure maintains good effect

Active Publication Date: 2021-08-24
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional coating method generally uses ethyl cellulose as the slurry binder, which has poor solubility in alcoholic organic solvents, and it is difficult to disperse the powder evenly, resulting in the slurry being coated on the substrate. Disadvantages such as uneven coating film and weak adhesion

Method used

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  • A kind of silver-iron oxide composite structure thin film and its preparation method and application
  • A kind of silver-iron oxide composite structure thin film and its preparation method and application
  • A kind of silver-iron oxide composite structure thin film and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Firstly, silver-iron oxide composite particles are prepared by condensation reflux method, and then the particles are dispersed in PU glue binder to make slurry, and then coated on the substrate by drop coating method to obtain a thin film. Follow the steps below:

[0023] (1) Add 5, 6, 7, 8, 9, 10mL of dodecanol, 1mL of oleic acid and 1mL of oleylamine to the reaction vessel in turn, heat to 220°C under magnetic stirring, connect the reaction vessel to a condenser tube, and proceed to the heating process Zhongtong condensate return;

[0024] (2) When the temperature rises to 220°C, add 100mg of silver acetate, keep it warm for 1 hour, and then drop the temperature to 150°C;

[0025] (3), add 250mg iron acetylacetonate, keep warm for 1 hour, then rise to 160°C, keep warm for 1 hour;

[0026] (4), the solution was cooled to room temperature, poured ethanol and n-hexane mixed solution with a volume ratio of 4:1 into the reactant, centrifuged and washed 3 times, and coll...

Embodiment 2

[0043] (1) Add 10mL dodecanol, 0.5, 0.6, 0.7, 0.8, 0.9, 1mL oleic acid and 1mL oleylamine to the reaction vessel in turn, heat to 220°C under magnetic stirring, connect the reaction vessel to a spherical condenser, and heat During the process, the condensed water is refluxed;

[0044] Steps (2)~(4) are with embodiment 1;

[0045] (5), transfer the collected precipitate to a blast drying oven, and dry at 60°C for 8 hours to obtain the silver-iron oxide composite particles prepared by adding different volumes of oleic acid in step (1);

[0046] Steps (6)~(13) are the same as in Example 1;

[0047] (14), after the calcination is completed, the tube furnace is cooled to room temperature, the sample is taken out, and finally the silver-iron oxide composite particles prepared by adding different volumes of oleic acid are attached to the silver-iron oxide composite particles formed on the conductive glass substrate. Oxide composite structure film.

Embodiment 3

[0049] (1) Add 10mL dodecanol, 1mL oleic acid and 0.5, 0.6, 0.7, 0.8, 0.9, 1mL oleylamine to the reaction vessel in turn, heat to 220°C under magnetic stirring, connect the reaction vessel to a spherical condenser, and heat During the process, the condensed water is refluxed;

[0050] Steps (2)~(4) are with embodiment 1;

[0051] (5) Transfer the collected precipitate to an air blast drying oven, and dry at 60° C. for 8 hours to obtain silver-iron oxide composite particles prepared by adding different volumes of oleylamine in step (1).

[0052] Steps (6)~(13) are the same as in Example 1;

[0053] (14) After the calcination is completed, the tube furnace is cooled to room temperature, the sample is taken out, and finally the silver-iron oxide composite particles prepared by adding different volumes of oleylamine are attached to the conductive glass substrate to form a silver-iron Oxide composite structure film.

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Abstract

The invention relates to a silver-iron oxide composite structure film and its preparation method and application. It is prepared by a three-step method. First, the silver-iron oxide composite particles are prepared by a condensation reflux method, and then the particles are dispersed in a PU adhesive. A slurry is made, and then applied on a conductive substrate by a drop-coating method, and finally a silver-iron oxide composite structure film is obtained after being calcined. The composite structure film can be used as the cathode of a photocatalytic fuel cell or a dye-sensitized solar cell. Compared with the common platinum electrode, the silver-iron oxide composite structure film has a lower cost and a better effect on cathode dye degradation or heavy metal ion reduction. it is good. The preparation process and required equipment adopted in the present invention are simple, highly controllable, safe in production, non-toxic, and environmentally friendly; as a cathode, assembled into a photocatalytic fuel cell can accelerate the degradation of the dye in the cathode chamber or the reduction of heavy metal ions, and at the same time can generate electricity.

Description

Technical field: [0001] The invention relates to a silver-iron oxide composite structure thin film and its preparation method and application, belonging to the technical field of thin film material preparation, and applicable to the cathode of a dye-sensitized solar cell or a photocatalytic fuel cell. Background technique: [0002] With the development of industry and the escalation of environmental problems, people's demand for new energy and the technological content of environmental governance are increasing. As a green energy with huge reserves, the utilization and conversion of solar energy is a hot research field. New environment-friendly semiconductor composite materials can use solar energy for photocatalytic decomposition of pollutants or photovoltaic power generation. The development of high-efficiency semiconductor composite materials has important economic and social significance for the sustainable development of human beings. The photocatalytic fuel cell syste...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G9/042H01G9/20H01M4/90
CPCH01G9/2036H01M4/9016Y02E10/542Y02E60/50
Inventor 董立峰孙琼李凯静
Owner QINGDAO UNIV OF SCI & TECH
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