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Preparation method of CoS-Ag-CNFs counter electrode

An electrode and electric heating technology, applied in the field of synthetic fibers, can solve the problems of complex electrode technology and unfavorable large-scale commercial application, and achieve the effect of good conductivity and improved catalytic performance

Inactive Publication Date: 2019-04-16
张富森
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation process of CNFs membrane counter electrode is relatively complicated, which is not conducive to large-scale commercial application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The preparation method of CoS-Ag-CNFs counter electrode comprises the steps:

[0023] (1) Preparation of CoS;

[0024] Weigh 0.749g CoCl 2 ·6H 2 O with 0.473g CH 3 CSNH 2 , pour them into the reaction kettle, and add 63mL of absolute ethanol into the 90mL polytetrafluoroethylene-lined reaction kettle, then treat the prepared solution with ultrasonic waves in an ultrasonic cleaner for 30min, and after the solution is evenly dissolved, Put the reaction kettle into an electric constant temperature blast drying oven for drying, the drying temperature is 140~160°C, and the drying time is 24 hours; then the reacted solution is repeatedly centrifuged 3 times with a centrifuge, and the gray-black precipitate obtained at last is washed with Dry in a vacuum drying oven at 60°C for 10 hours, the drying temperature is 50-60°C, and the drying time is 10 hours; a gray-black powder is obtained, and then the prepared gray-black powder is stored for later use;

[0025] (2) Prepare ...

Embodiment 2

[0034] The preparation method of CoS-Ag-CNFs counter electrode comprises the steps:

[0035] (1) Preparation of CoS;

[0036] Weigh 0.853g CoCl 2 ·6H 2 O with 0.512g CH 3 CSNH 2 , pour them into the reaction kettle, and add 63mL of absolute ethanol into the 90mL polytetrafluoroethylene-lined reaction kettle, and then treat the prepared solution with ultrasonic waves in an ultrasonic cleaner for 30 minutes, and after the solution is uniformly dissolved, Put the reaction kettle into an electric constant temperature blast drying oven for drying, the drying temperature is 140~160°C, and the drying time is 24 hours; then the reacted solution is centrifuged repeatedly for 3 times with a centrifuge, and the gray-black precipitate obtained at last is washed with Dry in a vacuum oven at 60°C for 10 hours, the drying temperature is 50-60°C, and the drying time is 10 hours; a gray-black powder is obtained, and then the prepared gray-black powder is stored for later use;

[0037] (2)...

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PUM

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Abstract

The invention relates to the technical field of synthetic fibers, in particular to a preparation method of a CoS-Ag-CNFs counter electrode. The preparation method of a CoS-Ag-CNFs counter electrode includes the following steps: (1) preparation of CoS; (2) preparation of spray solution; (3) preparation of CoS-Ag-CNFs; and (4) preparation of a CoS-Ag-CNFs counter electrode. The nano-fiber membrane counter electrode loaded with CoS and Ag prepared by the method of the invention has great improvement in catalytic performance and good conductivity.

Description

technical field [0001] The invention relates to the technical field of synthetic fibers, in particular to a method for preparing a CoS-Ag-CNFs counter electrode. Background technique [0002] In the whole dye-sensitized solar cells (DSSCs), the counter electrode (photocathode) mainly collects electrons from the external circuit, and the counter electrode of DSSCs is generally platinum (Pt) counter electrode, however, Pt is not abundant in nature as a noble metal, therefore, Vigorously developing non-Pt-based counter electrode materials with high performance and catalytic activity is an effective way to solve this problem. As one of the earliest counter electrode materials used to replace Pt, carbon materials have the advantages of low cost, abundant raw materials, high catalytic activity and good electrical conductivity. The carbon materials used at first were graphite and carbon black, and then other types of carbon materials were also used, such as multi-walled carbon nan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/20H01G9/042
CPCH01G9/2022Y02E10/542
Inventor 张富森
Owner 张富森
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