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Method of preparing conductive carbon fiber/platinum nanometer material and application of conductive carbon fiber/platinum nanometer material

A conductive carbon fiber, platinum nanotechnology, applied in the field of nanomaterials, can solve the problems of dye-sensitized solar cells industrialization application obstacles, high preparation cost, low overpotential, etc., and achieves favorable development and utilization, low cost and simplified production process Effect

Inactive Publication Date: 2012-12-19
FUDAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In current literature reports, dye-sensitized solar cells mainly use Pt counter electrodes, gold counter electrodes, nickel counter electrodes, carbon counter electrodes and conductive polymers, among which Pt counter electrodes have high catalytic activity and relatively low overpotential, but their High price leads to high preparation cost, which brings certain obstacles to the industrial application of dye-sensitized solar cells

Method used

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  • Method of preparing conductive carbon fiber/platinum nanometer material and application of conductive carbon fiber/platinum nanometer material
  • Method of preparing conductive carbon fiber/platinum nanometer material and application of conductive carbon fiber/platinum nanometer material
  • Method of preparing conductive carbon fiber/platinum nanometer material and application of conductive carbon fiber/platinum nanometer material

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Embodiment 1

[0027] Conductive carbon fibers (diameter 0.4mm, conductivity 10Ω / cm) were ultrasonically cleaned with deionized water, absolute ethanol and acetone for 5 minutes, dried, immersed in 10mM ethanol solution of chloroplatinic acid overnight, and then in 385 o C and sintered for 20 minutes to obtain a platinum-loaded conductive carbon fiber material. Such as figure 1 , figure 2 As shown, the diameter of platinum nanoparticles is 21~43nm, which are uniformly loaded on the conductive carbon fibers.

[0028] Application of conductive carbon fiber / platinum nanomaterials as flexible counter electrodes for dye-sensitized solar energy

[0029] Using an electrochemical workstation, cyclic voltammetry was used to analyze the platinum-loaded conductive carbon fiber counter electrode pair I 3 - / I - The catalytic activity of the pair was studied. The cyclic voltammetry scan uses a three-electrode system, and the reference electrode is Ag / Ag + , the counter electrode is Pt, and the ...

Embodiment 2

[0035] Conductive carbon fibers (diameter 0.3 mm, conductivity 9 Ω / cm) were ultrasonically cleaned with deionized water, absolute ethanol and acetone for 5 minutes in sequence, dried, and immersed in 5 mM chloroplatinic acid in isopropanol solution overnight. then at 380 o C and sintered for 25 minutes to obtain a platinum-loaded conductive carbon fiber material. The diameter of platinum nanoparticles is 16~30nm.

[0036] Application of conductive carbon fiber / platinum nanomaterials as flexible counter electrodes for dye-sensitized solar energy

[0037] Using an electrochemical workstation, cyclic voltammetry was used to analyze the platinum-loaded conductive carbon fiber counter electrode pair I 3 - / I - The catalytic activity of the pair was studied. The cyclic voltammetry scan uses a three-electrode system, and the reference electrode is Ag / Ag + , the counter electrode is Pt, and the electrolyte contains 0.1M LiClO 4 , 10M LiI and 1M I 2 Acetonitrile solution, the...

Embodiment 3

[0040] Conductive carbon fibers (diameter 0.3mm, conductivity 9Ω / cm) were ultrasonically cleaned with deionized water, absolute ethanol and acetone for 5 minutes, dried, immersed in 30mM ethanol solution of chloroplatinic acid overnight, and then in 380 o C and sintered for 25 minutes to obtain a platinum-loaded conductive carbon fiber electrode. The diameter of platinum nanoparticles is 34~50nm.

[0041] Application of conductive carbon fiber / platinum nanomaterials as flexible counter electrodes for dye-sensitized solar energy

[0042] Utilize the electrochemical workstation, adopt the cyclic voltammetry to measure the conductive carbon fiber counter electrode pair I loaded with platinum in the vegetation 3 - / I - The catalytic activity of the pair was studied. The cyclic voltammetry scan uses a three-electrode system, and the reference electrode is Ag / Ag + , the counter electrode is Pt, and the electrolyte contains 0.1M LiClO 4 , 10M LiI and 1M I 2 Acetonitrile sol...

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Abstract

The invention belongs to the technical field of a nanometer material, and in particular discloses a method of preparing a conductive carbon fiber / platinum nanometer material and an application of the conductive carbon fiber / platinum nanometer material. The conductive carbon fiber nanometer material loaded with platinum nanometer particles can be obtained by dipping the conductive carbon fiber after being preheated in an ethanol or isopropanol solution of chloroplatinic acid for overnight and sintering. The conductive carbon fiber / platinum nanometer material obtained by the preparation method acts as the electrodes of a dye-sensitized solar battery pair; and by taking the conductive carbon fiber with good electrical conductivity and high flexibility as a substrate, the shortcoming that the performance of the battery is reduced because of the deformation and resistance of a conductive film is solved. The electrode can be applied to a solid light absorption type battery; the use ratio of sunlight is improved, so that the dye-sensitized solar battery can be used in a narrow space; the preparation method of the electrode is simple; the cost is low; and the preparation method is in favor of commercial application of the dye-sensitized solar battery in a large area.

Description

technical field [0001] The invention belongs to the technical field of nanometer materials, and in particular relates to a preparation method of conductive carbon fiber / platinum nanometer material and its application in dye-sensitized solar cells. Background technique [0002] Since 1991, Professor M. Gratzel produced a dye-sensitized nanoporous TiO 2 Since dye-sensitized solar cells (DSSCs) with an energy conversion efficiency of 7.1%, dye-sensitized solar cells have become academic It is a hotspot of extensive research in the world and industry. At present, dye-sensitized solar cells are developing towards flexibility and solid-state, and three-dimensional light-absorbing cells have appeared to improve the utilization rate of sunlight. [0003] Dye-sensitized solar cells are mainly composed of dye-sensitized semiconductor porous membrane working electrodes (the most commonly used is TiO 2 ), the electrolyte containing oxidation-reduction couples (such as I 3 - / I - )...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/042H01G9/20
CPCY02E10/542Y02P70/50
Inventor 孙明轩崔晓莉
Owner FUDAN UNIV
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