Preparation method of boron nitrogen doped graphene supported palladium catalyst

A palladium catalyst and graphene technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve problems such as catalyst damage, life reduction, catalyst poisoning, etc.

Active Publication Date: 2016-08-10
TAIZHOU UNIV
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Problems solved by technology

[0004] The catalytic oxidation of formic acid can be divided into two ways: (1) Formic acid is first oxidized to intermediate state CO and then to CO 2 ; (2) direct oxidation of formic acid to CO 2 , where the Pt catalyst is more oxidized according to the first trans method, and the intermediate product CO produced in the first method will poison the catalyst, causing the catalyst to be destroyed and its lifespan to decrease

Method used

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  • Preparation method of boron nitrogen doped graphene supported palladium catalyst
  • Preparation method of boron nitrogen doped graphene supported palladium catalyst
  • Preparation method of boron nitrogen doped graphene supported palladium catalyst

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Experimental program
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Embodiment

[0032] 1. Synthesis of Pd / B-N-Graphene Catalyst

[0033] Preparation of 1B-Graphene

[0034] Weigh 1.546g of boric acid, dissolve it in 20ml of deionized water, stir and dissolve it in a water bath at 30°C, then weigh 200mg of graphene oxide, add it to a beaker, and use an ultrasonic breaker to sonicate for 10min. After the solution is sonicated evenly, transfer it to the reaction kettle , wash the probe with 10ml of deionized water, transfer the cleaned solution to the reaction kettle, put the reaction kettle into a constant temperature vacuum drying oven, react at 130°C for five hours, filter with suction, and put the obtained B-Graphene into the drying oven , dried at 70°C.

[0035] Preparation of 2B-N-Graphene

[0036] Add the dried B-Graphene into a 100ml large beaker containing 30ml of ammonia water. After ultrasonication is uniform, transfer it to the reaction kettle. Take another 30ml of ammonia water to clean the probe. The cleaned solution is also added to the reac...

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Abstract

The invention relates to a preparation method of a graphene catalyst, in particular to a preparation method of a boron nitrogen doped graphene supported palladium catalyst. The method includes the steps of preparing graphene oxide through a Hummers synthesis method, heating graphene oxide and boric acid together to prepare boron doped graphene oxide, dipping boron doped graphene oxide in ammonium hydroxide, doping boron doped graphene oxide with nitrogen to be subjected to reduction, conducting suction filtration, conducting roasting at 400-450 DEG C under the protection of nitrogen, and loading boron doped graphene oxide with Pd metal through a potassium borohydride method to obtain the boron nitrogen doped graphene supported palladium catalyst. By means of the method, graphene oxide is prepared through the Hummers synthesis method, graphene oxide and boric acid are heated together to prepare boron doped graphene oxide, boron doped graphene oxide is dipped in ammonium hydroxide, boron doped graphene oxide is doped with nitrogen to be subjected to reduction, suction filtration is conducted, then roasting is conducted under the protection of nitrogen, boron doped graphene oxide is loaded with Pd metal through the potassium borohydride method, and then the boron nitrogen doped graphene supported palladium catalyst is obtained.

Description

technical field [0001] The invention relates to a preparation method of a graphene catalyst, in particular to a preparation method of a boron nitrogen-doped graphene-supported palladium catalyst. Background technique [0002] With the continuous development and progress of society, the energy problem has become a difficult problem that our human society must break through. Finding a higher reserve, lower price, lower or non-toxic energy source has become the main research direction of experts and scholars. , and because of its advantages of cleanness, safety, low noise, diverse fuels, and high conversion efficiency (40-70%), the fuel cell quickly occupies people's attention, so choose an excellent system and a high-performance catalyst It has become the main direction of experts and scholars' research. [0003] Direct fuel cells meet people's requirements. Among them, direct formic acid fuel cells using formic acid as raw material have the advantages of simple use, uncompli...

Claims

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Application Information

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