Preparation method of ultrafine single crystal platinum nanotube with ultrathin tube wall of 1nm and openings in two ends

A technology of platinum nano and nanotubes, which is applied in the field of preparation of single crystal platinum nanomaterials, can solve the problems that the minimum size cannot be achieved at the same time, and the hollow and transparent structure of nanotubes cannot be guaranteed, achieving outstanding advantages, simple preparation methods, The effect of high catalytic activity
CN107919481AActive Publication Date: 2018-04-17YANSHAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
YANSHAN UNIV
Publication Date
2018-04-17

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Abstract

The invention discloses an ultrafine single crystal platinum nanotube with an ultrathin tube wall of 1nm and openings in two ends. The ultrafine single crystal platinum nanotube is a single crystal Ptnanotube which has an ultrathin diameter of 5.5nm and an ultrathin tube wall of 1nm, is dozens of microns in length and hollow and is provided with openings in two ends. A preparation method of the ultrafine single crystal platinum nanotube mainly comprises the steps of putting Pd nanowire powder and an ethylene glycol solution into a container, stirring, dropwise adding a chloroplatinic acid solution, stirring, carrying out centrifugal treatment, cleaning a product twice by using an ethanol-acetone solution, and drying to obtain Pd@Pt core-shell structure nanowire powder; dissolving the Pd@Pt nanowire powder and ferric trichloride into a hydrochloric acid solution, carrying out magnetic stirring, carrying out centrifugal treatment on the mixed solution and cleaning the product twice by using the hydrochloric acid solution to obtain the ultrafine single crystal platinum nanotube with the ultrathin tube wall of 1nm and the openings in two ends. The preparation method is simple; and theprepared platinum nanotube has the advantages of the ultrathin diameter, the ultrathin tube wall, the overlength, a single crystal structure and ultrahigh active specific surface area, and has very high catalytic activity in oxygen reduction reaction of a positive electrode of a fuel cell.
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Description

technical field

[0001] The invention belongs to the technical field of new materials, and in particular relates to a preparation method of a single crystal platinum nanometer material. technical background

[0002] Energy can neither be created nor destroyed, it can only be transformed from one form to another. For example, in fuel cells, chemical substances can convert chemical energy into electrical energy in an efficient and environmentally friendly way through the action of catalysts, which is the main content of scientific research in the era of environmental protection and energy saving. Among them, the proton exchange membrane fuel cell has the characteristics of simple operation, mild reaction conditions, high power output and fast start-up, and is widely used in electric vehicles, electric motorcycles and portable power supply devices. In a fuel cell, the reaction of positive and negative electrodes requires the participation of catalysts to work normally and effic...

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
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