Preparation method of nitrogen doped graphene supported Pd catalyst

A nitrogen-doped graphene and catalyst technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve the problems of hindering catalytic efficiency, low catalytic efficiency, uneven distribution of Pd, etc., and achieve high oxidation Reduction catalytic performance, large desorption peak area, and excellent catalytic activity

Inactive Publication Date: 2017-01-04
TAIZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Such as the Chinese patent publication number CN105597743A, the date of publication of the patent is May 23, 2016, which discloses a method for preparing a Pd catalyst supported on an alumina carrier. The catalyst prepared by this method is a Pd catalyst supported on an alumina carrier, although this method is A Pd catalyst with good catalytic activity was prepared at a lower heavy metal content, but the presence of alumina support in this catalyst hinders the improvement of catalytic efficiency and the uneven distribution of Pd in ​​the support, which makes the heavy metal Pd prepared by this method Catalysts still have low catalytic efficiency

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  • Preparation method of nitrogen doped graphene supported Pd catalyst
  • Preparation method of nitrogen doped graphene supported Pd catalyst
  • Preparation method of nitrogen doped graphene supported Pd catalyst

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Effect test

Embodiment 1

[0036] A nitrogen-doped graphene supported Pd catalyst, made from the following raw materials in parts by weight: 60 parts of nitrogen-doped graphene, PdCl 2 15 parts, 300 parts of potassium borohydride;

[0037] Wherein, nitrogen-doped graphene has following method to make:

[0038] Adding 2700 parts by weight of ammonia to 30 parts by weight of graphene oxide, ultrasonic treatment for a long enough time to make it ink-like; putting the ink-like product and 2650 parts by weight of ammonia into hydrothermal reaction In the kettle, react at a temperature of 200°C for 4 hours to obtain a nitrogen-doped graphene pre-product; react the nitrogen-doped graphene pre-product at 300°C for 6 hours to obtain a nitrogen-doped graphene;

[0039] In addition, graphene oxide is produced by hummer method.

[0040] A preparation method of nitrogen-doped graphene supported Pd catalyst, comprising the following steps:

[0041] a) adding nitrogen-doped graphene into distilled water for ultraso...

Embodiment 2

[0049] A nitrogen-doped graphene supported Pd catalyst, made from the following raw materials in parts by weight: 80 parts of nitrogen-doped graphene, PdCl 2 25 parts, 317 parts of potassium borohydride;

[0050] Wherein, nitrogen-doped graphene has following method to make:

[0051]Adding 2730 parts by weight of ammonia to 35 parts by weight of graphene oxide, ultrasonic treatment for a long enough time to make it ink-like; putting the ink-like product and 2730 parts by weight of ammonia into hydrothermal reaction In the kettle, react at a temperature of 210° C. for 5 hours to obtain a nitrogen-doped graphene pre-product; react the nitrogen-doped graphene pre-product at 400° C. for 6 hours to obtain a nitrogen-doped graphene;

[0052] In addition, graphene oxide is produced by hummer method.

[0053] A preparation method of nitrogen-doped graphene supported Pd catalyst, comprising the following steps:

[0054] a) adding nitrogen-doped graphene into distilled water for ultr...

Embodiment 3

[0062] A nitrogen-doped graphene supported Pd catalyst, made from the following raw materials in parts by weight: 90 parts of nitrogen-doped graphene, PdCl 2 30 parts, 320 parts of potassium borohydride;

[0063] Wherein, nitrogen-doped graphene has following method to make:

[0064] Adding 2800 parts by weight of ammonia to 35 parts by weight of graphene oxide, ultrasonic treatment for a long enough time to make it ink-like; putting the ink-like product and 2750 parts by weight of ammonia into hydrothermal reaction In the kettle, react at a temperature of 240° C. for 6 hours to obtain a nitrogen-doped graphene pre-product; react the nitrogen-doped graphene pre-product at 600° C. for 7 hours to obtain a nitrogen-doped graphene;

[0065] In addition, graphene oxide is produced by hummer method.

[0066] A preparation method of nitrogen-doped graphene supported Pd catalyst, comprising the following steps:

[0067] a) adding nitrogen-doped graphene into distilled water for ult...

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Abstract

The invention relates to a preparation method of a nitrogen doped graphene supported Pd catalyst. The method includes the following steps of a, adding nitrogen doped graphene to distilled water to be subjected to ultrasonic treatment to obtain a nitrogen doped graphene solution; b, dissolving PdCl2 in water to prepare a PdCl2 solution with the concentration of 0.05 mol/L, and conducting ultrasonic treatment to adjust the pH value of the PdCl2 solution to be 7-8; c, adding potassium borohydride to a sufficient amount of distilled water to be just dissolved to prepare a potassium borohydride solution; d, mixing the nitrogen doped graphene solution prepared in the step a and the PdCl2 solution prepared in the step b, and heating the mixed solution to be 50-60 DEG C; e, slowly adding the mixed solution processed in the step d to the potassium borohydride solution; f, making the mixed solution with potassium borohydride added react at 50-60 DEG C; g, conducting suction filtering, washing and drying on the product obtained through reaction in the step f to prepare the nitrogen doped graphene supported Pd catalyst.

Description

technical field [0001] The invention relates to the technical field of catalysts and catalyst synthesis, in particular to a preparation method of nitrogen-doped graphene supported Pd catalysts. Background technique [0002] With the rapid development of science, the consumption of energy is becoming more and more serious, and the pollution caused is also increasing. We urgently need to find a clean energy that integrates environmental protection, energy saving, and high efficiency. The high conversion rate of the fuel cell, low pollution, wide range of application and attention to research. Among them, the production cost of proton exchange membrane fuel cells using hydrogen as fuel is too high to be commercialized; although direct methanol fuel cells are simple to use and affordable, they are not environmentally friendly due to the strong volatility and toxicity of methanol , is still not ideal. In recent years, formic acid fuel cells, which are non-toxic and have the adv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24H01M4/92
CPCB01J27/24B01J35/0033H01M4/926Y02E60/50
Inventor 金燕仙黄国波胡佳杰
Owner TAIZHOU UNIV
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