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Nanometer Pd material and its prepn process

A technology of palladium nanometer and cuboid, which is applied in the field of nanomaterials and achieves the effect of simple preparation method

Inactive Publication Date: 2007-08-22
CHANGZHOU INST OF ENERGY STORAGE MATERIALS &DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no report on the synthesis of palladium nanocuboids

Method used

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  • Nanometer Pd material and its prepn process
  • Nanometer Pd material and its prepn process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Mix 1 volume of 10 mM chloropalladic acid aqueous solution and 20 volumes of 12.5 mM hexadecyltrimethylammonium bromide aqueous solution, heat to 95 ° C, and then add 100 mM Ascorbic acid aqueous solution, after reacting for 30 minutes, the solution is centrifuged, and the collected precipitate is washed with water and dried to obtain palladium nano cuboid material.

Embodiment 2

[0016] Mix 1 volume of 10 mM chloropalladic acid aqueous solution and 20 volumes of 15 mM cetyltrimethylammonium bromide aqueous solution, heat to 65 °C, and then add 100 mM ascorbic acid with a volume ratio of 0.16:1 to 10 mM chloropalladic acid aqueous solution aqueous solution, after reacting for 30 minutes, the solution was centrifuged, and the collected precipitate was washed with water and dried to obtain palladium nano cuboids.

Embodiment 3

[0018] Mix 1 volume of 10 mM chloropalladic acid aqueous solution and 20 volumes of 25 mM hexadecyltrimethylammonium bromide aqueous solution, heat to 95 ° C, and then add 100 mMM ascorbic acid with a volume ratio of 0.16:1 to 10 mM chloropalladic acid aqueous solution aqueous solution, after reacting for 30 minutes, the solution was centrifuged, and the collected precipitate was washed with water and dried to obtain palladium nano cuboid material.

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Abstract

The present invention provides one kind of cuboidal nanometer Pd material and its preparation process. The preparation process includes the following steps: mixing 10 mM concentration water solution of chloropalladic acid and 12.5-25 mM concentration water solution of ammonium hexadecyl trimethyl bride in the volume ratio of 1 to 20, heating to 65-95 deg.c, adding 100 mM concentration water solution of ascorbic acid in the volume ratio to the water solution of chloropalladic acid of 0.16 to 1 to react for 30 min, centrifugal separation to collect precipitate, water washing, and drying to obtain cuboidal nanometer Pd material. The process is simple, and the prepared cuboidal nanometer Pd material is used in catalyzing, preparing nanometer material and other fields.

Description

technical field [0001] The invention relates to the technical field of nanometer materials. Background technique [0002] Metal nanomaterials have many unique properties and have attracted widespread attention. And their properties are closely related to their shape and size. Therefore, many methods of preparing metal nanomaterials with specific sizes and shapes have been produced, especially the preparation methods of gold and silver nanomaterials. Palladium is an important catalyst involved in many important catalytic reactions. Therefore, the preparation method of palladium nanomaterials has attracted people's attention increasingly in recent years. Palladium nanomaterials of many different structures have been prepared, such as Veisz et al. in 2003 reported on the 4817th page of the 19th volume of Langmuir using hydrazine to reduce potassium chloropalladate in the presence of tetradecyltrimethylammonium bromide to prepare palladium nanomaterials. Octahedron; Xiong et...

Claims

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Application Information

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IPC IPC(8): B22F9/24
Inventor 徐国宝牛文新
Owner CHANGZHOU INST OF ENERGY STORAGE MATERIALS &DEVICES
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