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Palladium truncated octahedron nanometer material and preparation method thereof

A technology of nanomaterials and octahedra, applied in the field of palladium truncated octahedral nanomaterials and its preparation, can solve problems such as pollution, difficult cleaning of stabilizers, organic wastewater, etc.

Inactive Publication Date: 2019-08-27
INST OF PETROCHEM HEILONGJIANG ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of a large number of chemical reagents will bring some pollution, and the difficulty of cleaning the stabilizer will also bring a large amount of organic wastewater

Method used

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  • Palladium truncated octahedron nanometer material and preparation method thereof
  • Palladium truncated octahedron nanometer material and preparation method thereof
  • Palladium truncated octahedron nanometer material and preparation method thereof

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Effect test

specific Embodiment approach 1

[0027] A preparation method of palladium truncated octahedral nanomaterials, comprising the steps of:

[0028] Step 1. Select the dry leaves of sycamore sycamore, clean them, dry them, crush them, then add sycamore leaf powder and distilled water to the flask, extract at a certain temperature for a certain period of time at normal pressure, filter to obtain the extract, and store at a certain temperature ,stand-by;

[0029] Step 2, configure palladium salt aqueous solution of certain molar concentration, hexadecyltrimethylammonium bromide aqueous solution, stand-by;

[0030] Step 3, according to the volume ratio of the palladium salt solution and cetyltrimethylammonium bromide, respectively weigh the palladium salt solution and cetyltrimethylammonium bromide configured in step 2, and stir to obtain a mixed Palladium salt solution, ready for use;

[0031] Step 4. Weigh the extract obtained in step 1, the mixed palladium salt solution obtained in step 3, and distilled water ac...

specific Embodiment approach 2

[0043] A preparation method of palladium truncated octahedral nanomaterials, comprising the steps of:

[0044] Step 1. Select the dry leaves of sycamore sycamore, clean them, dry them, crush them, then add sycamore leaf powder and distilled water to the flask, extract at a certain temperature for a certain period of time at normal pressure, filter to obtain the extract, and store at a certain temperature ,stand-by;

[0045] Step 2, configure palladium salt aqueous solution of certain molar concentration, hexadecyltrimethylammonium bromide aqueous solution, stand-by;

[0046] Step 3, according to the volume ratio of the palladium salt solution and cetyltrimethylammonium bromide, respectively weigh the palladium salt solution and cetyltrimethylammonium bromide configured in step 2, and stir to obtain a mixed Palladium salt solution, ready for use;

[0047] Step 4. Weigh the extract obtained in step 1, the mixed palladium salt solution obtained in step 3, and distilled water ac...

specific Embodiment approach 3

[0058] A preparation method of palladium truncated octahedral nanomaterials, comprising the steps of:

[0059] Step 1. Select the dry leaves of sycamore sycamore, clean them, dry them, crush them, then add sycamore leaf powder and distilled water to the flask, extract at a certain temperature for a certain period of time at normal pressure, filter to obtain the extract, and store at a certain temperature ,stand-by;

[0060] Step 2, configure palladium salt aqueous solution of certain molar concentration, hexadecyltrimethylammonium bromide aqueous solution, stand-by;

[0061] Step 3, according to the volume ratio of the palladium salt solution and cetyltrimethylammonium bromide, respectively weigh the palladium salt solution and cetyltrimethylammonium bromide configured in step 2, and stir to obtain a mixed Palladium salt solution, ready for use;

[0062] Step 4. Weigh the extract obtained in step 1, the mixed palladium salt solution obtained in step 3, and distilled water ac...

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Abstract

The invention discloses a palladium truncated octahedron nanometer material and a preparation method thereof, belongs to the field of palladium nanometer material preparation methods, and solves the technical problem of simple, green and quick preparation of the palladium truncated octahedron nanometer material. Dry Chinese parasol leaves are selected, and are cleaned for drying and crushing; then, Chinese parasol leaf powder and distilled water are fed in a flask for normal-pressure extraction under a certain temperature to obtain extract liquid; palladium salt water solution with a certain mole concentration and cetyl trimethyl ammonium bromide are prepared; the palladium salt water solution and the cetyl trimethyl ammonium bromide are weighed according to the volume ratio, and are uniformly stirred to obtain mixed palladium salt water solution; and the extract liquid, the mixed palladium salt water solution and the distilled water are weighed according to a certain volume ratio forheating and stirring reaction by a certain time to obtain the palladium truncated octahedron nanometer material after centrifugation, cleaning and drying. The method is simple, green and quick.

Description

technical field [0001] The invention belongs to the field of preparation methods of palladium nanomaterials; in particular, it relates to a palladium truncated octahedral nanomaterial and a preparation method thereof. Background technique [0002] The catalytic reaction is a surface reaction. The size of nanoparticles can determine the size of the specific surface area, and the structure and morphology can affect the number of active sites and atoms on the surface. Therefore, changes in size or shape can directly affect catalytic activity and specific selectivity. Compared with size control, shape control will make palladium nanoparticles have more corner and edge atoms, thus have more catalytic active sites, which will greatly enhance the catalytic efficiency of palladium atoms. For some structure-sensitive reactions, conventional spherical palladium nanocatalysts are difficult to play a catalytic role. Therefore, the shape-controlled synthesis of palladium nanocatalysts ...

Claims

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Application Information

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IPC IPC(8): B22F1/00B22F9/24B82Y30/00B82Y40/00B01J23/44
CPCB22F9/24B82Y30/00B82Y40/00B01J23/44B22F1/0553B22F1/054B01J35/23B01J35/33
Inventor 白雪峰彭徐文刘洋吕宏飞
Owner INST OF PETROCHEM HEILONGJIANG ACADEMY OF SCI
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