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The adsorption of metal ions by carbon nanotubes is due to the negative zeta potential of carbon nanotubes, and the metal ions are adsorbed by the principle of electrostatic adsorption. Therefore, after the carbon nanotubes are treated with acid, the negative charge will increase, and the adsorbed metal ions will also increase. Titanate nanotubes are not very clear, but are estimated to be similar to the attraction of surface charges to metal ion charges.
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Kuaihuolin activated carbon adopts the most scientific formula in the world: according to the principle of activated carbon adsorption, the spherical gas phase special activated carbon developed by Mitsubishi of Japan is selected Imported special coconut shell activated carbon, using international advanced pore making technology, so that it has a pore structure that matches the size of harmful gas molecules in the room, its pore structure is developed, which is five times that of ordinary activated carbon, and its specific surface area is 1500 3000m2 g (the specific surface area of general activated carbon is 700m2 g), especially the array structure is different, and the pore diameter is larger And micropores smaller than 2nm account for more than 90% of the total. It is just compatible with the diameter of toxic and harmful gas molecules, when formaldehyde, benzene, toluene and other harmful toxic molecules touch the surface of activated carbon, it will be caught, it is difficult to run out, these molecules are collided with the molecules that come and touch to the depth of the pores, until the pores are filled with these molecules, so for the adsorption of toxic gases, gas phase microsphere activated carbon is the most ideal, it is completely dependent on molecular movement, molecular gravity and adsorption, without any chemical reaction.
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1. Carbon nanotubes.
It can be made into a transparent and conductive film to replace ITO (indium tin oxide) as the material for touch screens. 2. Carbon nanotubes can be used as molds. 3. The application of carbon nanotubes in stealth materials for infrared and electromagnetic waves.
There is stealth. 4. Application in energy materials: Carbon nanotubes are the most potential hydrogen storage materials due to their pipe structure and graphite-like layer voids between multi-walled carbon tubes.
Introduction to carbon nanotubes.
Carbon nanotubes, also known as bucky tubes.
It is a one-dimensional quantum material with a special structure. Carbon nanotubes are mainly composed of carbon atoms arranged in a hexagonal shape, consisting of several to dozens of layers of coaxial circular tubes. As one-dimensional nanomaterials, carbon nanotubes are lightweight, have perfect hexagonal structural connections, and have many abnormal mechanical, electrical, and chemical properties.
In recent years, with the deepening of the research on carbon nanotubes and nanomaterials, their broad application prospects have been continuously revealed.
Carbon nanotubes have good mechanical properties and CNTS tensile strength.
Reaching 50 200GPA, it is 100 times that of steel, but the density is only 1 6 of steel, at least an order of magnitude higher than conventional graphite fiber, in addition, carbon nanotubes have good electrical conductivity, because the structure of carbon nanotubes is the same as the sheet structure of graphite, so it has good electrical properties. Theoretically, its conductivity depends on its diameter and the helix angle of the wall.
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1.It can be made into a transparent conductive film instead of indium tin oxide as the material for touch screens. 2.
It can be applied to carbon nanotube touch screens. The carbon nanotube touch screen was successfully developed for the first time in 2008. 3.
It can be used as a mold. The inside of carbon nanotubes can be filled with metals, oxides, and other substances, so that carbon nanotubes can be used as molds. 4.
It can be used as an electrode material for electric double-layer capacitors. Electric double-layer capacitors can also be used as energy storage devices. 1.
Carbon nanotubes can be made into transparent conductive films to replace ITO (indium tin oxide) as the material for touch screens. In the existing technology, scientists use powdered carbon nanotubes to prepare solutions that are directly coated on PET or glass substrates, but this technology has not yet entered the mass production stage. 2.
Carbon nanotubes can be applied to carbon nanotube touch screens. The carbon nanotube touch screen was successfully developed for the first time in 2008. Until now, many smartphones have used carbon nanotube touch screens.
3.Carbon nanotubes can be used as molds. The inside of carbon nanotubes can be filled with metals, oxides, and other substances, so that carbon nanotubes can be used as molds.
First, by filling carbon nanotubes with metals and other substances, the thinnest nanoscale wires can be prepared. 4.Carbon nanotubes can be used as electrode materials for electric double-layer capacitors.
Electric double-layer capacitors can be used as both capacitors and energy storage devices. Supercapacitors can be charged and discharged at high currents, with almost no overvoltage, a cycle life of tens of thousands of times, and a wide operating temperature range.
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1. Carbon nanotubes can be made into transparent and conductive films to replace ITO (indium tin oxide) as the material of touch screens. In previous technologies, scientists used powdered carbon nanotubes to prepare a solution and apply them directly to PET or glass substrates, but this technology has not yet reached the mass production stage.
2. Carbon nanotubes can be applied to carbon nanotube touch screens. Carbon nanotube touch screens were first successfully developed in 2008, and there have been many smart phones using touch screens made of carbon nanotube materials.
3. Carbon nanotubes can be used as molds. The inside of the carbon nanotubes can be filled with metals, oxides and other substances, so that the carbon nanotubes can be used as molds, and the thinnest nanoscale wires can be prepared by first filling the carbon nanotubes with metals and other substances.
4. Carbon nanotubes can be used as electrode materials for electric double-layer capacitors. Electrical double-layer capacitors can be used both as capacitors and as an energy storage device. Supercapacitors can be charged and discharged at high currents, with almost no overvoltage, a cycle life of up to 10,000 times, and a wide range of operating temperatures.
Carbon nanotubes are a class of nanomaterials composed of a two-dimensional hexagonal lattice of carbon atoms, which are bent in one direction and combined to form a hollow cylinder. Carbon nanotubes are one of the allotropes of carbon, between fullerene and graphene. In addition to these single-walled carbon nanotubes, the name is also used for multi-walled variants consisting of two or more nested nanotubes, or rolled into multi-layered graphene-like bands like scrolls.
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