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Pd-Cu alloy icosahedron nano-catalyst as well as preparation method and application thereof

A nano-catalyst and icosahedron technology, which is applied in the direction of electrolytic components, electrodes, electrolytic organic production, etc., can solve the problems of low catalytic efficiency and achieve the effects of improving catalytic activity, good selectivity, and improving catalytic efficiency

Active Publication Date: 2022-05-24
HANGZHOU NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, its catalytic efficiency for the hydrogenation reaction of the carbon-carbon triple bond is not high

Method used

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  • Pd-Cu alloy icosahedron nano-catalyst as well as preparation method and application thereof
  • Pd-Cu alloy icosahedron nano-catalyst as well as preparation method and application thereof
  • Pd-Cu alloy icosahedron nano-catalyst as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A preparation method of Pd-Cu alloy icosahedral nano-catalyst, comprising the steps:

[0041] (1) Add 1.4 mg of palladium chloride, 80 μL of copper chloride aqueous solution with a concentration of 0.190 mol / L, 20 mg of potassium bromide and 300 mg of polyvinylpyrrolidone (PVP) into 12 mL of N,N-dimethylformamide (DMF). ), stirring for 30min to obtain a uniform dark red mixed solution;

[0042] (2) The mixed solution is reacted at 180° C. for 4 hours, and the product is washed alternately with absolute ethanol and water to obtain the Pd-Cu alloy type icosahedral nanocatalyst.

[0043] The application method of Pd-Cu alloy icosahedral nanocatalyst includes the following steps:

[0044] (1) The above catalyst was added to absolute ethanol. The mass and volume of the Pd-Cu alloy icosahedral nanocatalyst and absolute ethanol was 1 mg: 1 mL. After ultrasonic dispersion for 10 mins, Nafion solution was added. The solid content of Nafion solution was 5%. The volume ratio of ...

Embodiment 2

[0047] The difference between Example 2 and Example 1 is that 1.0 mg of palladium chloride was added.

Embodiment 3

[0049] The difference between Example 3 and Example 1 is that 1.5 mg of palladium chloride was added.

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Abstract

The invention relates to the technical field of catalysts, and discloses a Pd-Cu alloy icosahedron nano-catalyst and a preparation method and application thereof, the mass ratio of Pd to Cu in the catalyst is (15-25): 1, the catalyst is of a twin crystal structure, and the particle size of the catalyst is 15-25 nm. The catalyst disclosed by the invention has the characteristics of high selectivity and high catalytic efficiency on catalytic reduction of carbon-carbon triple bonds into carbon-carbon double bonds.

Description

technical field [0001] The invention relates to the technical field of catalysts, in particular to a Pd-Cu alloy icosahedral nano-catalyst and a preparation method and application thereof. Background technique [0002] With the rapid progress and development of society, all aspects of society need the support of fine chemicals. For example, food additives in the food industry need fine chemical products, and the beauty industry needs fine chemical products. For example, in medicine, pesticides, synthetic dyes, organic pigments Coatings, surfactants, various materials, photosensitive materials, magnetic materials, catalysts, etc. all require the support of the fine chemical industry. Olefins are one of the most important commodity chemicals produced in the petrochemical industry and are widely used in fine chemistry. Therefore, olefin compounds play a key role in the survival and development of human beings. In the modern industry, the production of olefins is mainly obtain...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B11/053C25B11/089C25B3/25C25B3/03
CPCC25B11/053C25B11/089C25B3/25C25B3/03Y02E60/50
Inventor 叶伟徐旭东
Owner HANGZHOU NORMAL UNIVERSITY