Metal organic skeleton structure material load platinum catalyst, as well as preparation method and application thereof

A metal-organic framework and structural material technology, applied in the preparation of organic compounds, organic compound/hydride/coordination complex catalysts, organic chemistry, etc., to achieve good activity and selectivity, environmental friendliness, high efficiency and stability

Inactive Publication Date: 2013-04-03
EAST CHINA NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has not been reported that MIL-101 is used as a carrier to support Pt catalysts, and it is used in the asymmetric

Method used

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  • Metal organic skeleton structure material load platinum catalyst, as well as preparation method and application thereof
  • Metal organic skeleton structure material load platinum catalyst, as well as preparation method and application thereof
  • Metal organic skeleton structure material load platinum catalyst, as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] Example 1

[0027] Cr(NO 3 ) 3 ·9H 2 O, HF, terephthalic acid and deionized water are reacted in a hydrothermal reactor at a constant temperature of 493K for 8 hours at a molar ratio of 1:1:1:265; naturally cooled to room temperature and filtered to obtain a green solid powder; Then the solid powder is washed with an organic solvent and a small molecular alcohol, and filtered while it is hot after each wash. Finally, the MIL-101 powder obtained by drying in a constant temperature drying oven is the metal organic framework structure material MIL-101. Put 0.5mL H 2 PtCl 6 Ethanol solution (1g chloroplatinic acid hexahydrate dissolved in ethanol to prepare 25mL solution) was added dropwise to 1.500g of the MIL-101 powder prepared above, then 10-12mL of ethanol, stirring and immersion at room temperature for 4-6 hours at a stirring speed of about 600 Revolutions per minute. After the immersion, the solvent is evaporated and dried at 353-393K. Then add an appropriate amount o...

Example Embodiment

[0028] Example 2

[0029] In this example, a Pt / MIL-101 catalyst with a Pt loading of 5 wt.% was prepared according to the preferred conditions:

[0030] The preparation method of the metal organic framework structure material MIL-101 is basically the same as that of Example 1. Put 2.0mL H 2 PtCl 6 Ethanol solution (1g chloroplatinic acid hexahydrate is dissolved in ethanol to prepare 25mL chloroplatinic acid ethanol solution) is added dropwise to 573.4mg MIL-101 powder, and then 5-8mL ethanol, stirring and immersion at room temperature for 4-6 hours, stirring speed is about It is 600 revolutions per minute. After the immersion, the solvent is evaporated and dried at 353-393K. Then add an appropriate amount of sodium formate and deionized water at a molar ratio of platinum to sodium formate of 1:10, and reduce at 368K for 2 hours. After cooling, wash with a large amount of deionized water to remove the chloride ions, and then dry at 353-393K to obtain a load of 5wt .% Pt / MIL-101...

Example Embodiment

[0034] Example 3

[0035] The preparation method of the metal organic framework structure material MIL-101 is basically the same as that of Example 1. Put 3.0mL H 2 PtCl 6 Ethanol solution (1g chloroplatinic acid hexahydrate dissolved in ethanol to prepare 25mL chloroplatinic acid ethanol solution) was added dropwise to 407mg MIL-101 powder, then 4-7mL ethanol, stirring and immersion at room temperature for 4-6 hours, the stirring speed was about 600 revolutions per minute. After the immersion, the solvent is evaporated and dried at 353-393K. Then add an appropriate amount of sodium formate and deionized water at a molar ratio of platinum and sodium formate of 1:10, and reduce at 368K for 2h. After cooling, wash with a large amount of deionized water to remove the chloride ions, and then dry at 353-393K to obtain a load of 10wt. % Pt / MIL-101 catalyst.

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Abstract

The invention discloses a metal organic skeleton structure material load platinum catalyst. The metal organic skeleton structure material load platinum catalyst comprises a carrier and an active component loaded on the carrier, wherein the carrier is a metal organic skeleton structure material MIL-101, and the active component is platinum. The invention also discloses a preparation method of the metal organic skeleton structure material load platinum catalyst and a catalytic hydrogenation application thereof. The catalyst provided by the invention has a higher specific surface area and a larger porthole structure, the catalyst is suitable for application in a catalytic hydrogenation reaction, the catalyst is environmentally-friendly, the reaction conditions are gentle, and the catalyst is high in efficiency and good in stability.

Description

technical field [0001] The invention relates to the technical field of metal nanoparticle catalysts, in particular to a metal-organic framework material-supported platinum catalyst, a preparation method and its application in heterogeneous catalytic hydrogenation. Background technique [0002] The asymmetric hydrogenation reaction of latent chiral carbonyl compounds can produce chiral alcohols, and functionalized alcohols are important raw materials for the synthesis of fine chemicals such as medicines, pesticides, and spices. The physical and chemical properties of the two enantiomers (R)- and (S)-isomers in chiral drug molecules are similar, but there are obvious differences in drug activity, metabolic process and toxicity in the human body, even on the contrary. Therefore, the research on the synthesis of monochiral compounds has become a hot spot in the field of chemical research. [0003] Three methods are commonly used to obtain enantiopure compounds with a single co...

Claims

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Application Information

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IPC IPC(8): B01J31/22C07C67/31C07C69/675C07C69/732C07C29/141C07C33/22C07C33/46C07C43/23C07C41/26C07C209/36C07C211/46C07C211/47C07C211/52C07C217/84C07C213/02
Inventor 李晓红潘会严关业军吴鹏
Owner EAST CHINA NORMAL UNIVERSITY
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