Method for loading platinum on heteroatom-doped carbon nanohorn, catalyst and application of catalyst

A carbon nanohorn and heteroatom technology, which is applied in the field of catalytic material preparation, can solve the problems of difficulty in obtaining unique structure carbon nanohorn supporting platinum, complicated processing steps, low doping amount of heteroatoms, etc., and achieves low production cost and simple equipment. , the effect of high purity
CN114558604APending Publication Date: 2022-05-31KUNMING UNIV OF SCI & TECH
7 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
KUNMING UNIV OF SCI & TECH
Publication Date
2022-05-31

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a method for loading platinum on heteroatom-doped carbon nanohorns, a catalyst and application of the catalyst. The platinum loading method comprises the following steps: mixing a heteroelement substance and graphite powder in a mass ratio of (1: 3)-(10: 1) for a preset time to obtain a heteroatom precursor; placing the heteroatom precursor into a graphite rod with holes, compacting the heteroatom precursor, and drying the graphite rod for a preset time to obtain a plasma anode; taking a pure graphite rod as a cathode, vertically and oppositely placing the pure graphite rod and the plasma anode in an electric arc furnace, vacuumizing the electric arc furnace, filling buffer gas, starting an electric arc, and reacting for a preset time period to obtain the heteroatom-doped carbon nanohorn; and dispersing the heteroatom-doped carbon nanohorns in a reducing solution, adding platinum salt, uniformly stirring, heating, stirring, carrying out a reduction reaction, centrifuging, washing, and drying to obtain the low-platinum supported catalyst. The preparation method has the advantages that the heteroatom-doped carbon nanomaterial can be used as a carrier, and the high-activity platinum catalyst for the fuel cell is prepared.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of preparation of catalytic materials, in particular to a method, catalyst and application of a heteroatom-doped carbon nanohorn supporting platinum. Background technique

[0002] Fuel cells have attracted worldwide attention due to their high energy conversion efficiency (40% to 60%), low noise, green environmental protection, sustainable operation, high power density, stable output, and safe operation. In recent years, formic acid is in a liquid state at room temperature, with a low freezing point, non-toxic, and non-flammable. It is suitable for low-temperature work, and is relatively safe. Compared with traditional methanol fuel, formic acid has advantages. In addition, formic acid is a good electrolyte, which is conducive to charge conduction after ionization, has a small contact resistance, and has a higher open circuit voltage than methanol. And it can work at a higher concentration, the actual worki...

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
Login to View More