Unlock instant, AI-driven research and patent intelligence for your innovation.

Ni@LaCO3OH composite material as well as preparation method and application thereof

A composite material, CO2 technology, applied in the field of composite materials, can solve the problems of small volume, high energy density, etc., achieve high catalytic efficiency, long catalytic life, and protect the environment

Pending Publication Date: 2019-01-25
SOUTH CHINA UNIV OF TECH
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these materials are currently not enough to meet the requirements of high safety, small size, high energy density, and cost-effectiveness at the same time.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Ni@LaCO3OH composite material as well as preparation method and application thereof
  • Ni@LaCO3OH composite material as well as preparation method and application thereof
  • Ni@LaCO3OH composite material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) In a glove box with an argon atmosphere of 0.1MPa, take 4.5g of LaNi that has been arc-melted and fully crushed, and screened through a 200-mesh standard inspection sieve. 5 Put the powder into a 25mL high-temperature and high-pressure reactor (NS-25-316L), fill it with 4MPa hydrogen, place it at 150°C for 5 hours to fully activate it, and cool to room temperature;

[0042] (2) Pump out the remaining gas in the kettle (the pressure in the kettle is between 0.1 and 1MPa during the pumping process), and fill it with a mixed gas containing 3MPa carbon dioxide (V CO2 :V Ar =19:81), pumping and inflating again, after repeating 5 times, there is no hydrogen residue in the reactor, and the mixed gas containing carbon dioxide of 3MPa (V CO2 :V Ar =19:81), the reactor was placed at 180°C for reaction, after 40 hours of reaction, the reactor was cooled to room temperature, and the Ni@LaCO 3 OH composite material;

[0043] (3) Take out all the remaining gas in the kettle, ...

Embodiment 2

[0045] (1) In a glove box with an argon atmosphere of 0.1MPa, take 4.5g of LaNi that has been arc-melted and fully crushed, and screened through a 200-mesh standard inspection sieve. 5 Put the powder into a 25mL high-temperature and high-pressure reactor (NS-25-316L), fill it with 4MPa hydrogen, place it at 150°C for 5 hours to fully activate it, and cool to room temperature;

[0046] (2) Pump out the remaining gas in the kettle (the pressure in the kettle is between 0.1 and 1MPa during the pumping process), and fill it with a 3MPa mixed gas containing carbon dioxide (V CO2 :V Ar =19:81), pumping and inflating again, after repeating 5 times, there is no hydrogen residue in the reactor, and the mixed gas containing carbon dioxide of 3MPa (V CO2 :V Ar =19:81), the reactor was placed at 180°C for reaction, after 40 hours of reaction, the reactor was cooled to room temperature, and the Ni@LaCO 3 OH composite material;

[0047] (3) Take out all the remaining gas in the kettle, ...

Embodiment 3

[0051] (1) In a glove box with an argon atmosphere of 0.1MPa, take 4.5g of LaNi that has been arc-melted and fully crushed, and screened through a 200-mesh standard inspection sieve. 5 Put the powder into a 25mL high-temperature and high-pressure reactor (NS-25-316L), fill it with 4MPa hydrogen, place it at 150°C for 5 hours to fully activate it, and cool to room temperature;

[0052] (2) Pump out the remaining gas in the kettle (the pressure in the kettle is between 0.1 and 1MPa during the pumping process), and fill it with a 3MPa mixed gas containing carbon dioxide (V CO2 :V Ar =19:81), pumping and inflating again, after repeating 5 times, there is no hydrogen residue in the reactor, and the mixed gas containing carbon dioxide of 3MPa (V CO2 :V Ar =19:81), the reactor was placed at 180°C for reaction, after 40 hours of reaction, the reactor was cooled to room temperature, and the Ni@LaCO 3 OH composite material;

[0053] (3) Take out all the remaining gas in the kettle, ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a Ni@LaCO3OH composite material as well as a preparation method and application thereof. The preparation method of the Ni@LaCO3OH composite material comprises the following steps of carrying out a heating reaction on a metal hydride in a CO2 containing atmosphere, and cooling to room temperature, so that the Ni@LaCO3OH composite material is prepared. When the Ni@LaCO3OH composite material is used as a methanation catalyst, and when the temperature reaches 200 DEG C, the conversion ratio of carbon dioxide can reach 90% or more than 90%; and further, no gaseous products except methane are detected in gas chromatography and mass spectrometry. The obvious performance reduction in a reaction with 20 cycles and exceeding 400 h is not seen; and the catalytic life is long.Compared with a previous catalyst, the Ni@LaCO3OH composite material is used for obviously decreasing the methanation reaction temperature, is used for greatly prolonging the service life of the catalyst, has the advantages of being simple in process, mild in condition, high in yield and free from pollution and the like, and can be used for industrialized production.

Description

technical field [0001] The invention belongs to the technical field of composite materials, in particular to a Ni@LaCO 3 OH composite materials and their preparation methods and applications. Background technique [0002] At present, the global energy supply still mainly depends on the combustion of fossil fuels. Since the "United Nations Framework Convention on Climate Change" formulated by the United Nations Conference on Environment and Development in Rio in 1992, 196 parties from all over the world have joined in the discussion of issues, namely, global climate change and conflicts of interest. And bear the brunt of the greenhouse effect. [0003] Carbon dioxide, the exhaust gas of combustion and the culprit of the greenhouse effect, is also a non-toxic, cheap source of carbon, a thermodynamically stable molecule. The reduction and recycling of carbon dioxide is not only a panacea for solving the greenhouse effect, but also an effective means of synthesizing industria...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B01J23/83C07C9/04C07C1/12
CPCB01J23/83C07C1/12C07C9/04
Inventor 欧阳柳章钟丹刘江文王辉朱敏
Owner SOUTH CHINA UNIV OF TECH