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Photo-responsive titania nanotube-supported catalyst electrode and preparation method thereof

A technology of supporting catalysts and titanium dioxide, which is applied to battery electrodes, circuits, electrical components, etc., and can solve the problems of pure platinum poisoning and expensive platinum

Inactive Publication Date: 2015-04-29
SUZHOU UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the precious metal platinum is expensive, and pure platinum is easily poisoned by carbon monoxide, so it is necessary to reduce the amount of platinum, improve the utilization rate and anti-poisoning ability of platinum, in order to achieve the purpose of commercialization of fuel cells

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  • Photo-responsive titania nanotube-supported catalyst electrode and preparation method thereof
  • Photo-responsive titania nanotube-supported catalyst electrode and preparation method thereof
  • Photo-responsive titania nanotube-supported catalyst electrode and preparation method thereof

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Embodiment Construction

[0030] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0031] The photoresponsive titanium dioxide nanotube-loaded catalyst electrode of the present invention is made up of base material and catalyst layer, and described base material is metal titanium sheet and carrier titanium dioxide nanotube; The catalyst layer above base material is made of catalyst platinum, palladium, gold, silver noble metal At least one of them is composed of reduced graphene oxide. The morphology of the catalyst loaded on the base material is in the shape of nanoflowers.

[0032] Due to the orderly arrangement of titanium dioxide nanotubes on the surface of the titanium sheet, the transmission rate of photogenerated carriers is increased, and the re...

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Abstract

The invention relates to a photo-responsive titania nanotube-supported catalyst electrode and a preparation method thereof, and belongs to a catalytic electrode material and preparation thereof in a fuel cell. A titania nanotube is adopted as a catalyst carrier of at least one noble metal in platinum, palladium, gold and silver; a photo-responsive semiconductor electrode is obtained by graphene modification, so that, on one hand, a titania nanotube array has good acidic and basic stability and excellent photoelectric property, and on the other hand, the electrical conductivity and the visible light response performance of the semiconductor electrode are enhanced by modification on the titania nanotube by graphene. By the preparation method provided by the invention, the dispersity of the catalyst and the visible light response of the electrode can be improved by the catalyst electrode, so that the catalysis efficiency of the noble metal catalyst is improved.

Description

technical field [0001] The invention relates to a photoresponsive titanium dioxide nanotube-loaded catalyst electrode and a preparation method thereof, belonging to the catalytic electrode material in a fuel cell and its preparation. Background technique [0002] Fuel cells, especially direct methanol fuel cells, as a technology that directly converts fuel chemical energy into electrical energy, have many advantages such as high efficiency, low emission, and no pollution, and have attracted great attention from the scientific and industrial circles. In fuel cells, platinum has been the most commonly used catalyst for anodic oxidation. However, the precious metal platinum is expensive, and pure platinum is easily poisoned by carbon monoxide. Therefore, it is necessary to reduce the amount of platinum and improve the utilization rate and anti-poisoning ability of platinum to achieve the commercialization of fuel cells. [0003] In view of the above-mentioned defects, the desi...

Claims

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Application Information

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IPC IPC(8): H01M4/86H01M4/88H01M4/90
CPCH01M4/8657H01M4/8853H01M4/9041H01M4/925Y02E60/50
Inventor 朱明山杜玉扣翟春阳
Owner SUZHOU UNIV
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