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A method for preparing a high-performance nitrogen-doped porous carbon-supported PtNi alloy particle methanol fuel cell catalyst

A nitrogen-doped porous carbon, methanol fuel cell technology, applied in fuel cells, battery electrodes, electrochemical generators, etc., can solve the problems of high preparation cost, low output, complex process, etc. Cost, simple process effect

Active Publication Date: 2018-12-28
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the disadvantages of high-performance carbon carrier materials for methanol fuel cells, such as high preparation cost, complex process, and low output, the present invention provides a method for preparing nitrogen-doped carbon materials with simple preparation methods and excellent performance.

Method used

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  • A method for preparing a high-performance nitrogen-doped porous carbon-supported PtNi alloy particle methanol fuel cell catalyst
  • A method for preparing a high-performance nitrogen-doped porous carbon-supported PtNi alloy particle methanol fuel cell catalyst
  • A method for preparing a high-performance nitrogen-doped porous carbon-supported PtNi alloy particle methanol fuel cell catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Step 1: Take 2g of the cigarette butt filter element and put it into a spice grinder to make a fluffy filter element with a tap density of about 0.02gcm -3 .

[0034] Step 2: Take 2g of the filter element and 20g of deionized water for hydrothermal reaction in a stainless steel reactor, raise the temperature to 250°C at a rate of 5°C / min, and keep the temperature for 2h. Then cool to room temperature at 5°C / min. The produced carbon material was dried at 112°C.

[0035] Step 3: Obtain 1.5g of carbonaceous substance, get 6g KOH and carbonaceous material. After grinding evenly, add alumina porcelain boat, heat to 800°C at 3°C / min under nitrogen protection, keep warm for 1h and then cool under nitrogen protection.

[0036] Step 4: the gac obtained is at 2mol L -1 Stirring recovery cleaning under the HCl solution, and then cleaning with deionized water until the pH is neutral. The obtained samples were dried in an oven at 112°C for use.

[0037]Step 5: Take 16 mg of th...

Embodiment 2

[0045] The preparation steps of the PtNi / N-HPC catalyst are the same as in Example 1, except that the holding temperature is 700°C when the carbon material is activated in the third step.

Embodiment 3

[0047] The preparation steps of the PtNi / N-HPC catalyst are the same as those in Example 1, except that the holding temperature is 900°C when the carbon material is activated in Step 3.

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Abstract

The invention relates to a method for preparing a high-performance nitrogen-doped porous carbon supported PtNi alloy particle methanol fuel cell catalyst. The method uses waste cigarette end filter core as carbon source and nitrogen source to generate nitrogen-doped porous carbon material in one step; Non-noble metal Ni and noble metal Pt alloy particles are supported on nitrogen-doped porous carbon materials to form catalysts. The invention provides a simple preparation method of nitrogen-doped porous carbon-supported PtNi binary alloy (PtNi / N-HPC) catalyst, which improves the CO poisoning disadvantage of a single Pt-based catalyst.

Description

Technical field: [0001] The technical scheme of the invention relates to the preparation of a methanol fuel cell catalyst, in particular to a preparation method of a nitrogen-doped porous carbon-supported PtNi binary alloy catalyst. Background technique: [0002] With the depletion of traditional energy, how to use limited resources to develop efficient and clean energy has become a common concern in today's society. As a device that directly converts chemical energy into electrical energy, fuel cells have attracted widespread attention because of their high energy conversion efficiency, environmental friendliness, and the conversion process is not affected by the Carnot cycle. Among them, direct methanol fuel cells use methanol as fuel, which has the advantages of abundant fuel sources, low price, high energy density, environmental friendliness and pollution-free, and will have broad application prospects in the future. [0003] Although the research on direct methanol fue...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/92H01M8/1011B82Y30/00
CPCB82Y30/00H01M4/921H01M4/926H01M8/1011Y02E60/50
Inventor 张程伟宋岩张武霖殷福星
Owner HEBEI UNIV OF TECH
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