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Hollow spindle-shaped nanometer telluride platinum and preparation method thereof

A spindle-shaped, platinum telluride technology, applied in the field of nanomaterials, can solve the problem of no Pt/Te hollow nanomaterial synthesis report, etc., and achieve the effects of low production cost, simple preparation process and good uniformity

Inactive Publication Date: 2016-04-20
HEFEI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, there is no report on the synthesis of Pt / Te hollow nanomaterials in the existing literature

Method used

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  • Hollow spindle-shaped nanometer telluride platinum and preparation method thereof
  • Hollow spindle-shaped nanometer telluride platinum and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0023] A kind of preparation method of hollow spindle-shaped nano-platinum telluride proposed by the present invention comprises the following steps:

[0024] S1. Dissolve 0.6g of sodium tellurite and 0.6g of polyvinylpyrrolidone K-25 in 30ml of deionized water, then add 10ml of hydrazine hydrate and 2ml of ammonia water and stir evenly to obtain material a;

[0025] S2. The material a is subjected to a hydrothermal reaction, the temperature of the hydrothermal reaction is 160° C., and the time of the hydrothermal reaction is 40 hours, and then the first filter cake is obtained by filtration, and the first filter cake is centrifugally cleaned to obtain the material b;

[0026] S3. Add 40 mg of material b into 10 ml of deionized water, then ultrasonically dissolve, then add 0.02 g of chloroplatinic acid for oscillation, the oscillation temperature is 60 ° C, and the oscillation time is 48 hours, then filter to obtain the second filter cake, and the second The filter cake is cen...

Embodiment 2

[0030] A kind of preparation method of hollow spindle-shaped nano-platinum telluride proposed by the present invention comprises the following steps:

[0031] S1. Dissolve 0.5 g of sodium tellurite and 1 g of polyvinylpyrrolidone K-30 in 30 ml of deionized water, then add 20 ml of hydrazine hydrate and 2 ml of ammonia water and stir to obtain material a;

[0032] S2. The material a is subjected to a hydrothermal reaction, the temperature of the hydrothermal reaction is 140° C., and the time of the hydrothermal reaction is 20 hours, and then the first filter cake is obtained by filtration, and the first filter cake is centrifugally cleaned to obtain the material b;

[0033] S3. Add 30 mg of material b into 10 ml of deionized water, then ultrasonically dissolve, then add 0.01 g of chloroplatinic acid for oscillation, the oscillation temperature is 40 ° C, and the oscillation time is 24 hours, then filter to obtain the second filter cake, and the second The filter cake is centrif...

Embodiment 3

[0035] A kind of preparation method of hollow spindle-shaped nano-platinum telluride proposed by the present invention comprises the following steps:

[0036] S1. Dissolve 0.6g of sodium tellurite and 0.8g of polyvinylpyrrolidone K-25 in 30ml of deionized water, then add 10ml of hydrazine hydrate and 2ml of ammonia water and stir evenly to obtain material a;

[0037] S2. The material a is subjected to a hydrothermal reaction, the temperature of the hydrothermal reaction is 180° C., and the time of the hydrothermal reaction is 30 hours, and then the first filter cake is obtained by filtration, and the first filter cake is centrifugally cleaned to obtain the material b;

[0038]S3. Add 50 mg of material b into 10 ml of deionized water, then ultrasonically dissolve, then add 0.025 g of chloroplatinic acid for oscillation, the oscillation temperature is 80 ° C, and the oscillation time is 30 h, then filter to obtain the second filter cake, and the second The filter cake is centrif...

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Abstract

The invention discloses a preparation method of hollow spindle-shaped nanometer telluride platinum. The method includes the following steps of adding sodium tellurite and polyvinylpyrrolidone to deionized water to be dissolved, and sequentially adding hydrazine hydrate and ammonium hydroxide to be evenly stirred to obtain a material a; conducting the hydrothermal reaction on the material a, conducting filtering to obtain a first filter cake, and conducting centrifugal cleaning on the first filter cake to obtain a material b; adding the material b to deionized water, conducting ultrasonic dissolution, adding chloroplatinic acid for oscillation, conducting filtering to obtain a second filter cake, conducting centrifugal cleaning on the second filter cake, and conducting drying to obtain the hollow spindle-shaped nanometer telluride platinum. The preparation process is simple, production cost is low, the preparation process is easy to control, sample postprocessing is simple, the hollow spindle-shaped nanometer telluride platinum is quite suitable for industrial production, the obtained hollow spindle-shaped nanometer telluride platinum has the advantages of being regular in shape and appearance, high in uniformity and the like, and a novel nanometer material is provided for biological sensors, electrochemical sensors, fuel batteries and the like.

Description

technical field [0001] The invention relates to the technical field of nanometer materials, in particular to a hollow spindle-shaped nanometer platinum telluride and a preparation method thereof. Background technique [0002] Biochemical sensors, electrochemical sensors, fuel cells, etc. generally use noble metals as catalysts. For example, S.Wang et al. used Pt nanowire electrodes to achieve highly sensitive and stable catalytic detection of hydrogen peroxide and glucose; K.Cai et al. studied Au / Catalytic activity of Pt heterojunction nanotubes; L.Wen et al. used Pt nanotube arrays to make high-performance supercapacitors; W.Liu et al. used the synthesized noble metal aerogels as electrocatalysts; C.H.Cui et al. will use Pt / Pd The catalysis will make it into a fuel cell. [0003] However, the direct use of noble metals for catalysis leads to high costs. Therefore, in order to reduce the amount of noble metals such as platinum and gold, the method of introducing catalyst s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B19/04
CPCC01B19/007C01P2002/85C01P2004/03C01P2004/30C01P2004/61
Inventor 万丽娟范程华鲁世斌
Owner HEFEI NORMAL UNIV
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