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Preparation method of metal-containing monatomic fluid

An atomic and fluid technology, applied in the field of metal-containing single-atom fluid preparation, can solve the problem of high energy consumption for carbon dioxide desorption and regeneration, and achieve the effects of excellent electrochemical activity, low energy consumption, and low production cost

Active Publication Date: 2021-11-26
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to overcome the problems in the prior art, the object of the present invention is to provide a method for preparing a metal-containing monatomic fluid, which can be used for carbon dioxide capture and solve the problem of high energy consumption for carbon dioxide desorption and regeneration

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  • Preparation method of metal-containing monatomic fluid

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preparation example Construction

[0024] see figure 1 , a method for preparing a metal-containing monatomic fluid of the present invention, comprising the following steps:

[0025] (1) Take a certain amount of polyvinylidene fluoride and fully dissolve it in N,N-dimethylformamide solution, the mass ratio of polyvinylidene fluoride to N,N-dimethylformamide solution is 1: 8-1:12, stir for 2-4 hours in an environment with a temperature of 20-30°C and a pressure of 0.1 MPa to mix the two evenly, and the liquid obtained after mixing is used as a solvent for the monatomic fluid.

[0026] (2) Add metal powder chromium or platinum to the solvent of the above-mentioned monatomic fluid, the ratio of the mass of the added metal powder to the mass of the monatomic fluid solvent is 1:4500-1:5500, at a temperature of 20-30°C, Stir for 10-12 hours in an environment with a pressure of 0.1 MPa to obtain a suspension solution containing dispersed metal chromium or platinum atoms.

[0027] (3) Add polyaniline to the suspension...

Embodiment 1

[0031] Weigh 2g of polyvinylidene fluoride and fully dissolve it in N,N-dimethylformamide solution. The volume of N,N-dimethylformamide solution is 20mL. The environment was stirred for 2 hours to mix the two evenly, and the liquid obtained after mixing was used as a solvent for the monatomic fluid.

[0032] Add chromium metal powder to the solvent of the monoatomic fluid, the mass of the added metal chromium is 0.0044g, and stir for 12h in an environment with a temperature of 25°C and a pressure of 0.1MPa to obtain a suspension solution containing dispersed metal chromium.

[0033] Add polyaniline to the suspension containing dispersed metal chromium atoms, the quality of the added polyaniline is 0.1g, in addition, add nitroxide free radical piperidinol 0.1g to the suspension at the same time, at a temperature of 25°C, Stir for 12 hours in an environment with a pressure of 0.1 MPa to obtain a monatomic fluid containing metallic chromium.

Embodiment 2

[0035] Weigh 2g of polyvinylidene fluoride and fully dissolve it in N,N-dimethylformamide solution. The volume of N,N-dimethylformamide solution is 20mL. The environment was stirred for 2 hours to mix the two evenly, and the liquid obtained after mixing was used as a solvent for the monatomic fluid.

[0036] Add platinum metal powder to the solvent of the monoatomic fluid, the mass of the added metal platinum is 0.0045g, and stir for 12 hours in an environment with a temperature of 25°C and a pressure of 0.1MPa to obtain a suspension solution containing dispersed metal platinum.

[0037] Add polyaniline to the suspension containing dispersed metal platinum atoms, the quality of the added polyaniline is 0.1g, in addition, add nitroxide free radical piperidinol 0.1g to the suspension at the same time, at a temperature of 25°C, Stir for 10 hours in an environment with a pressure of 0.1 MPa to obtain a monatomic fluid containing metallic platinum.

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Abstract

The invention relates to a preparation method of a metal-containing monatomic fluid. The method comprises the following steps: stirring and mixing polyvinylidene fluoride and an N, N-dimethylformamide solution for a certain time, adding metal solid powder, fully stirring at normal temperature to obtain a turbid liquid in which metal atoms are dispersed, adding polyaniline and nitroxide free radical piperidinol / PyBIG into the turbid liquid of the metal atoms, fully stirring at normal temperature, and fully dispersing metal atoms in the solution to obtain the metal-containing monatomic fluid. Through a long-time normal-temperature sufficient stirring process, the monatomic fluid containing the metal is prepared through simple operation. The preparation process method is simple, and large-scale industrial production can be easily realized. The preparation process is short in manual time consumption and high in yield, and the working efficiency can be effectively improved. The monatomic fluid containing the dispersed metal can be applied to capture of carbon dioxide in flue gas of a power plant, and has a good effect on absorption and desorption of carbon dioxide.

Description

technical field [0001] The invention relates to the field of process design, in particular to a method for preparing a metal-containing monatomic fluid. Background technique [0002] As the global temperature is gradually warming, the governance of greenhouse gases has become the focus of attention from all walks of life. The temperature rise, glacier melting, sea level rise and other issues caused by greenhouse gases have threatened the survival of human beings and become a global problem that needs to be solved urgently. CO 2 Accounting for about 60% of greenhouse gases, coal-fired power plants are CO 2 main source of emissions. 1 kg of CO is emitted for every 1 kilowatt-hour of coal-fired electricity 2 , CO 2 Emissions are growing rapidly as humanity's dependence on fossil fuels grows. However, CO from fossil fuel combustion 2 of CO caused by human activities 2 Three-quarters of the total emissions, fossil fuels are rich in reserves, and will still be the main ener...

Claims

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Application Information

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IPC IPC(8): B01D53/14
CPCB01D53/1475B01D53/1493Y02P20/151
Inventor 余云松李媛周晨阳张辰张景峰王佳锋张早校
Owner XI AN JIAOTONG UNIV
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