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Preparation method of polypyrrole/palladium-cellulose paper base catalyst for catalyzing ammonia borane dehydrogenation

A technology for catalyzing borane and polypyrrole, which can be used in organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., and can solve the problems of poor stability and low catalytic efficiency.

Inactive Publication Date: 2015-04-22
HARBIN INST OF TECH
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  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a polypyrrole / palladium-cellulose paper base that catalyzes the dehydrogenation of borane ammonia in order to solve the problems of low catalytic efficiency and poor stability of the existing macromolecule sedimentation material supported catalyst Catalyst preparation method

Method used

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  • Preparation method of polypyrrole/palladium-cellulose paper base catalyst for catalyzing ammonia borane dehydrogenation
  • Preparation method of polypyrrole/palladium-cellulose paper base catalyst for catalyzing ammonia borane dehydrogenation
  • Preparation method of polypyrrole/palladium-cellulose paper base catalyst for catalyzing ammonia borane dehydrogenation

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specific Embodiment approach 1

[0015] Specific embodiment one: the preparation method of the polypyrrole / palladium-cellulose paper-based catalyst that this embodiment catalyzes the dehydrogenation of borane ammonia is realized according to the following steps:

[0016] 1. Soak the cellulose paper in deionized water, then add pyrrole monomer, shake evenly to get the mixed solution;

[0017] 2. Add the sodium tetrachloropalladate aqueous solution with a concentration of 0.05~0.2mol / L to the mixed solution described in step 1, and shake it at room temperature for 18~24h to obtain the reaction solution containing polypyrrole / palladium-loaded composite paper ;

[0018] 3. Take out the polypyrrole / palladium-loaded composite paper from the reaction solution containing the polypyrrole / palladium-loaded composite paper described in step 2, then wash with deionized water and absolute ethanol for 2 to 3 times respectively, and dry it Finally, polypyrrole / palladium-cellulose paper-based catalyst is obtained.

[0019] ...

specific Embodiment approach 2

[0022] Embodiment 2: The difference between this embodiment and Embodiment 1 is that in Step 2, an aqueous solution of sodium tetrachloropalladate with a concentration of 0.1 mol / L is added to the mixed solution described in Step 1. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0023] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is that in step two, the volume ratio of pyrrole monomer to sodium tetrachloropalladate is 1:4~9, and the concentration is 0.05~0.2mol / L. Sodium chloropalladate aqueous solution is added in the mixed solution described in step one. Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

The invention discloses a preparation method of a polypyrrole / palladium-cellulose paper base catalyst for catalyzing the ammonia borane dehydrogenation and relates to a preparation method of a catalyst for efficiently catalyzing the ammonia borane dehydrogenation. The method aims at solving the problems that an existing macromolecule ground material supported catalyst is low in catalyzing efficiency and poor in stability. The preparation method comprises the steps that 1, cellulose paper is submerged in deionized water, a pyrrole monomer is added, and mixing liquid is obtained; 2, a sodium tetrachloropalladate solution is added into the mixing liquid, the liquid is shocked 18-24 hours, and reaction liquid comprising polypyrrole / palladium supported composite paper is obtained; 3, the polypyrrole / palladium supported composite paper is taken out and washed with deionized water and absolute ethyl alcohol, and finally the polypyrrole / palladium-cellulose paper base catalyst is obtained by drying. The dehydrogenation conversion efficiency of the polypyrrole / palladium-cellulose paper base catalyst can reach more than 20mol H2mol Pd<-1> min<-1>, and the polypyrrole / palladium-cellulose paper base catalyst has superior stability and repeat practicability.

Description

technical field [0001] The invention relates to a preparation method of a high-efficiency catalytic borane ammonia dehydrogenation catalyst. Background technique [0002] With the massive exploitation of fossil fuels and the increasing pollution of the environment, the global environmental degradation and energy crisis have forced the search for new alternative energy to become an increasingly urgent problem. Hydrogen energy is an ideal clean energy in the future. Because its only combustion product is water, it has the advantages of cleanliness and high efficiency, so it can be applied to many aspects of production and life, and has become an energy source with great development potential. However, there are still many problems to be solved in the practical application of hydrogen energy, such as the transportation and storage of hydrogen. Therefore, researchers have turned their attention to new hydrogen storage materials. Among many hydrogen storage materials, ammonium b...

Claims

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Application Information

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IPC IPC(8): B01J31/06C01B3/06
CPCY02E60/36
Inventor 王威王俏何皎洁邵鹏辉张欣桐冯惠崔福义
Owner HARBIN INST OF TECH
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