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Method for preparing mass wormlike palladium nanotubes

A worm-like, palladium nanotechnology, applied in the field of preparation of large quantities of worm-like palladium nanotubes, to achieve the effect of high catalytic activity and high stability

Inactive Publication Date: 2013-09-04
ZHEJIANG NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the inherent difficulties in the synthesis of Pd hollow materials, only a limited number of successful hollow Pd nanostructures have been synthesized, such as Co nanoparticles and SiO 2 The spheres were used as templates to synthesize hierarchical hollow nano-Pd and hollow Pd nanospheres

Method used

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  • Method for preparing mass wormlike palladium nanotubes
  • Method for preparing mass wormlike palladium nanotubes
  • Method for preparing mass wormlike palladium nanotubes

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Embodiment Construction

[0014] The present invention will be described in detail below in conjunction with specific embodiments.

[0015] 1.1. Drugs

[0016] Palladium Chloride (PdCl 2 ), dimethylglyoxime (dmg), ethylene glycol, ascorbic acid and NaBH4 were purchased from Aladdin Ltd. All reagents were of analytical grade and used without further purification. All aqueous solutions were prepared with double distilled water.

[0017] 1.2. Synthesis of PdO WNTs

[0018] Put 10mL PdCl 2 Solution (100mM) was added dropwise to 25mL dimethylglyoxime solution (37mM) while stirring (PdCl 2 and dimethylglyoxime molar ratio is about 1:1-2). The resulting precipitate was thoroughly washed with water by centrifugation, dried at 60°C, calcined in a muffle furnace at 450°C for 2 hours, and cooled naturally to room temperature for later use.

[0019] 1.3. Synthesis of PdWNTs

[0020] 0.02g PdO WNTs with 10mL NaBH 4 The solutions (25mM) were mixed and stirred for 2h. The finally obtained black precipitate ...

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Abstract

The invention discloses a method for preparing mass wormlike palladium nanotubes. According to the method, precipitates are obtained through reacting PdCl2 with dimethylglyoxime, the mole ratio of PdCl2 to dimethylglyoxime is 1: (1-2), the produced precipitates are subjected to centrifugation, are thoroughly cleaned with water, are dried at the temperature of 60 DEG C and are then calcined for 2 hours in a muffle furnace at the temperature of 450 DEG C so as to obtain PdO WNTs, and the PdO WNTs is subjected to reduction by using NaBH4 so as to obtain a final product Pd WNTs. The Pd WNTs prepared by the method has great catalytic activity and high stability to the electrocatalytic oxidation of ethylene glycol (EG).

Description

technical field [0001] The invention relates to a method for preparing large quantities of worm-shaped palladium nanotubes. Background technique [0002] Hollow nanomaterials are widely used materials in membrane distillation, detection, environmental protection, batteries and drug carriers. Recently, a large number of methods for preparing hollow nanomaterials have been proposed, such as hydrothermal method, sol-gel method, electrochemical method and microwave method. However, the processes of these methods are quite complicated, such as needing to remove the stencil in a suitable solvent or selective etching, which will lead to the purity of the product and limit the further application of the product. [0003] Currently, Pd has obvious advantages as an anode catalyst in fuel cells due to its superior activity and stability compared with other metal catalysts. However, due to the inherent difficulties in the synthesis of Pd hollow materials, only a limited number of succ...

Claims

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Application Information

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IPC IPC(8): B01J23/44H01M4/92B82Y40/00
CPCY02E60/50
Inventor 冯九菊周丹玲吕章英黄宏蔡琳熠王爱军
Owner ZHEJIANG NORMAL UNIVERSITY
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