A kind of nitrogen-phosphorus modified granular carbon-supported bimetallic catalyst, preparation method and application
A bimetallic catalyst and granular carbon technology, which is applied in the direction of catalyst activation/preparation, dehydrohalogenation preparation, chemical instruments and methods, etc., can solve the problems that the electronic characteristics of catalyst preparation methods do not take into account the mutual influence, so as to promote directional deposition and improve Effect of high metal utilization and catalytic efficiency
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0052] Preparation of carbon particles co-doped with nitrogen and phosphorus: take citric acid, deionized water and substances containing nitrogen and phosphorus (a mixture of phenylphosphonic acid and glutamic acid with a molar ratio of 1:2) at a mass ratio of 4:15:5 ) into a hydrothermal kettle, hydrothermally reacted in the hydrothermal kettle at 185-190 ℃ for 10h, take out the sample after hydrothermal, centrifuge to remove large particles, and the supernatant is then dialyzed with a dialysis bag with a molecular weight cut-off of 1000-25000, Until there is no obvious color on the outside of the bag, collect the solution in the middle of the two-layer dialysis bag, and concentrate at 5-10° C. to obtain an aqueous solution of carbon particles co-doped with nitrogen and phosphorus, and control the concentration of the aqueous solution to be 35wt%;
[0053] Preparation of nitrogen-phosphorus co-doped carbon carrier: After washing the granular carbon with water until there is n...
Embodiment 2
[0057] The preparation steps of the catalyst in this example are the same as those in Example 1, except that: the second metal load adopts the cupric chloride impregnation solution with a loading of 4.0 wt%, and the first metal load adopts a chloroplatinic acid impregnation solution with a loading of 0.5 wt%. The prepared catalyst is denoted as catalyst 2, the alloy phase particles of the catalyst 2 account for 92%, the particle size is 10 nm, the nitrogen content is 6.18 wt %, and the phosphorus content is 3.48 wt %.
Embodiment 3
[0059] The preparation steps of the catalyst in this example are the same as those in Example 1, except that the second metal load adopts a tin chloride impregnation solution with a loading of 1.5 wt%, and the first metal load adopts a chloropalladic acid impregnation solution with a loading of 1.0 wt%. The prepared catalyst is denoted as catalyst 3, the alloy phase particles of the catalyst 3 account for 89%, the particle size is 5 nm, the nitrogen content is 3.78 wt %, and the phosphorus content is 2.28 wt %.
PUM
| Property | Measurement | Unit |
|---|---|---|
| size | aaaaa | aaaaa |
| size | aaaaa | aaaaa |
| specific surface area | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More