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Prepration method of Pt/TiO2 compound catalyst for low temperature combustion of methanol

A composite catalyst, low-temperature combustion technology, applied in physical/chemical process catalysts, catalyst carriers, chemical instruments and methods, etc., to achieve the effects of simple preparation method, high catalytic activity, and simple equipment

Inactive Publication Date: 2010-06-30
SHANGHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the energy conversion efficiency of most internal combustion engines is less than 20%. If we can increase the energy conversion efficiency by 5%, we can save more than 25% of fuel

Method used

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  • Prepration method of Pt/TiO2 compound catalyst for low temperature combustion of methanol
  • Prepration method of Pt/TiO2 compound catalyst for low temperature combustion of methanol
  • Prepration method of Pt/TiO2 compound catalyst for low temperature combustion of methanol

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Embodiment 1

[0021] Embodiment one: concrete steps are:

[0022] 1. First configure 0.08mol / L H 2 PtCl 6 aqueous solution and 0.03mol / L PVP (polyvinylpyrrolidone) glycol solution. 0.1122 g NaNO 3 Add it to 35mL PVP ethylene glycol solution to dissolve, raise the temperature to 160°C until the solution slightly boils under electromagnetic stirring, and quickly inject 3~5mL H with a pipette 2 PtCl 6 Aqueous solution, reflux reaction for 5 to 20 minutes, the solution turns from light yellow to deep black, and the reaction stops. After cooling, wash with a large amount of acetone solution, and centrifuge at 3900 rpm for 1 minute to obtain a black product. Add 5-10 mL of ethanol solution, ultrasonically disperse for 10-30 min, and finally obtain a uniform and monodisperse nano-Pt particle A solution.

[0023] 2. Add 5mL TiCl 4 Slowly add it dropwise into 10-30mL ice water, after the vigorous hydrolysis tends to be stable, dilute to 85mL with deionized water, and stir electromagnetically ...

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Abstract

The invention relates to a preparation method of a Pt / TiO2 compound catalyst for low temperature combustion of methanol. The method does not involve the prepration method of taking organic compounds and hydrogen as reducing agents during the prepration process. The prepared Pt nanoparticles are characterized by uniformity, monodisperse and the like. The prepared Pt / TiO2 compound catalyst can catalyze the combustion of methanol gas under the room temperature condition and has high catalytic activity for low-temperature catalytic combustion of the methanol. TiO2 in the synthesis method can not only reduce the using amount of Pt in the catalyst, but also improve the catalytic performance of the catalyst and improve the stability of the catalyst. Equipment used in the synthesis process is simple, and the preparation efficiency is high, so that the preparation method can be used for mass prepration of the Pt / TiO2 compound catalyst.

Description

technical field [0001] The invention relates to a method for preparing a catalyst for low-temperature combustion of methanol, in particular to a Pt / TiO catalyst for low-temperature combustion of methanol 2 Preparation method of composite catalyst. technical background [0002] More than 90% of the world's energy comes from burning coal, natural gas, oil and other combustible materials such as wood, but the high-temperature combustion process will produce many problems that human beings have to face, such as global temperature rise, environmental pollution and low energy consumption. effective use. With the rapid development of economy, our country and the whole world are also facing enormous pressure and challenges in energy and environmental protection. To fundamentally solve this problem, it is necessary to start from the basic point of changing the traditional energy conversion method (such as high-temperature combustion). [0003] Now the energy conversion efficiency ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/42B01J32/00B01J35/06
Inventor 安保礼戴樊增
Owner SHANGHAI UNIV
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