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Sorted out the properties and uses of graphite for you

admin / 2023-08-13 / no Comments

The properties and benefits of graphite Graphite This material is carbonized and it has many advantages, such as resistance to high temperatures, corrosion, electrical conductivity and heat conduction.

Uses of graphite
It is widely applied in the fields such as metallurgy. Chemical industry, machinery, electronic, aerospace, national defence and military industry. Graphite has many uses, including refractory, lubricant, brake linings. pencil leads. carbon brushes. batteries.

What are some of the important uses for graphite?
1. Refractory
In the smelting sector, graphite can be used for making graphite crucibles as well as as a protective agent for steel ingots. It is also used as magnesia carbon bricks to line smelting furnaces.
2. Conductive materials
In the electrical sector, graphite can be used for electrodes as well as brushes, electric poles, carbon nanotubes or coatings of television picture tubes.
3. Wear-resistant and lubricating materials
In a lot of mechanical equipment, graphite acts as a wear resistant and lubricating substance. This material can slide at speeds of up to 100 meters/second in temperatures of -2002000. This can render the equipment useless, or use less lubricating oils.
4. Sealing materials
You can use flexible graphite for centrifugal and steam turbine pumps, as well as piston ring seals or gaskets to transport corrosive media.
5. Materials resistant to corrosion
Graphite is used to make equipment, pipes, and utensils that are resistant against corrosion. This material is widely used for equipment in petroleum, chemical industries, and hydrometallurgy.
6. Heat insulation, radiation protection and high-temperature resistant material
Graphite has many uses, such as a neutron modulator for nuclear reactors, missile nose cones or aerospace equipment, thermal insulation, radiation materials and more.

Graphite application products with high value added
As science and technologies continue to innovate, graphite-based high-value products are created. As an example, expanded graphite isotropic, fluorinated, spherical, graphite for Li-ion Batteries, metal or composite materials, have been widely used to conserve energy and protect the environment, in new energy vehicles, new generation information technology, high end equipment manufacturing, most strategic emerging industries, such as biology. Graphite has a major role in almost all development directions.

Graphite is a term used to describe the different types of graphene and their applications.
The current research on graphene It has also made a significant breakthrough. Products like high-purity Graphite (also known as nuclear Graphite), fluorinated Graphite (also known as Fluorinated Graphite), silicon-impregnated graphite or graphite-composites have been produced in large quantities both at home as well as abroad. They are used for environmental protection as well as High-tech Industries such as the nuclear industry, electronic and semiconductors.
Physicists can use graphene for clean, endless power generation circuits
A team of University of Arkansas physicists has developed a circuit capable of capturing the thermal motion of the graphene material and converting it into an electricity current. The graphene based energy harvesting will be integrated in the chip to provide clean, low voltage power supply for small sensors or devices.

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How amazing is graphene?

admin / 2023-04-04 / no Comments

What's graphene Graphene can be described as a new material that is composed of a single layer made of carbon atoms, which are packed tightly together to form a hexagonal honeycomb network. Graphene is an allotrope of carbon and a two-dimensional material.

Graphene only has 0.142 nanometers molecular bond length and 0.335 micrometers crystal plane spacing. It has four atoms of size, making it much smaller than a bacteria.
Graphene has been the thinnest known compound. It is one atom in thickness. It is also one atom thick.

Humans and graphene
Since 1948, graphene was found in nature. But it was difficult to separate graphene form the monolayer structure at the time. The graphene was all clumped together. It was almost graphite. Every millimeter contained three million layers.
Graphene, therefore, was considered non-existent for a very long time.
Scientists Konstantin Voselov (University of Manchester) discovered how to isolate graphene in 2004. The scientists discovered that graphite sheets made from highly-oriented, pyrolytic graphite could be easily separated by attaching them to special tape and then tearing it apart.
This can be repeated over and over, resulting in thinner sheets. Eventually, graphene is a special type of carbon atoms. Andrei Geim, Konstantin Novoselov received the Nobel Prize for Graphene Discovery.

Graphene The king material --
When graphene became known, it changed the face of scientific research all over the globe. One gram graphene will cover the area of a standard football field, as it is the thinnest known material.
Graphene is also very good at electrical and thermal properties. Pure monolayer graphene, which is defect-free, has a high thermal conductivity at 5300W/Mk, the highest known carbon material.
Graphene is also very good at conducting electricity. Graphene, which has a carrier mobility value of 15,000m2/(Vs at room temperatures), is 10 times more than silicon, the most widely used material.
The arrangement of carbon atoms inside graphene is like barbed wire. This arrangement of atoms gives graphene unique flexibility. It is also more difficult than ever. The graphene's unique flexibility is due to the honeycomb and barbed wire structures created by carbon atoms. Each carbon atom is also perpendicular the orbital, which allows for large bonds to penetrate atoms.

Graphene applications
The discovery graphene has opened scientists' eyes to the possibility of movement and action of particles. It has also changed many aspects of our lives.

These new energy batteries represent the first steps towards graphene tech. The lithium battery is currently the most common type of battery. While the lithium battery has the capacity to store a lot of electric power for us, the downside of the battery is its inability to last long. Each discharge or charging will reduce the battery's life expectancy.
The graphene material can greatly increase the charging efficiency and capacity of batteries. Additionally, it plays a significant role in prolonging battery life. A graphene tinoxid layer will be used as the anode for a lithium-ion battery. The battery will last longer once it is charged.
Graphene is a good choice for batteries that last longer and have a higher capacity.

Because graphene has soft properties, it could be used to create flexible material. The flexible display is one of the most iconic examples.
The flexible transparent displays produced by the South Korean Institute were made using layers of graphene, fiberglass polyester sheets and other materials. While the project is still in the development phase and has not yet been launched on the market, the project staff believes that flexible transparent displays made of graphene could one day replace "bricks", mobile phones. The phones can be folded up like silly putty.

Graphene is also used to protect our environment, most notably in desalination.
Water reacts with graphene to create a channel that is just 0.9 nanometers wide. Molecules smaller in size can pass through the channel without difficulty, but larger molecules will get stuck. Graphene can remove large molecules of salt from seawater.

Graphene's unique properties and excellent properties have led to many achievements in many scientific fields.

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Hexagonal Boron Nitride is 10 Times Stronger Than Graphene

admin / 2023-04-01 / no Comments

Hexagonalboron nitride is a two dimensional layered broadband gap insulating material that exhibits good heat resistance, chemical stability, as well as dielectric properties. It is widely used for electronic devices.
Hexagonalboron nitride has a structural similarity to graphene. It is composed of a planar network of atoms interconnected in hexagons. The only difference between graphene and H-BN is that all atoms in graphene are carbon. In H-BN, every hexagon contains three nitrogen and three boron molecules.

Graphene has a stronger carbon-carbon bond than H-BN. The strengths and elastic modulus for the two materials are very similar. However, h-BN is slightly less than graphene. Graphene has an strength of 130GPa and young’s modulus around 1.0TPa. The strength and modulus for H-BN are 100GPa (and 0.8 TPA), respectively.
Graphene is not only strong in mechanical properties but it also has low crack resistance which makes graphene brittle.

British engineer Griffiths published in 1921 a theoretical study on fracture mechanics. This included a description of the failures of brittle materials as well as the relationship between the size cracks and the force necessary to make them grow. Engineers and scientists have used this theory for hundreds of decades to predict and determine the toughness of materials.
In 2014, Professor Jun Lou and his Rice University team discovered that graphene has a high degree of fracture toughness. This corresponds to Griffith's theory about fracture mechanics. Cracks are formed when graphene's stress exceeds its force keeping it together.
Due to its structural similarity with graphene H-bn could also be vulnerable. But this is not true.

H-BN is 10x more ductile that graphene, according to scientists.
Professor Jun Lou, Nanyang Technological University Singapore and Prof. Hua Jian gao of Rice University found that HBN, a brittle metal, cracks more easily than graphene. This discovery is in direct contradiction to Griffith's fracture theory. Such anomalies have never before been observed in two-dimensional materials. The Nature article entitled "Intrinsic Toughening in Hexagonal Boron Nitride" published the related research results.

Mechanism of H-BN's Extraordinary Strength
To discover why, the team applied stress on the HBN sample using scanning electron microscopes, transmission electron microscopes, and other tools. The mystery was solved after over 1,000 hours of experiments, theoretical analysis and further research.

H-Bn graphene and graphene are structurally identical, but the boron atoms and nitrogen atoms differ. HBN also has an asymmetric arrangement in hexagonal lattice. This is in contrast to graphene's carbon hexagon. Graphene's cracks tend to penetrate the symmetrical hexagonal structure, opening the bond like an open zipper. H-BN has a hexagonal structure that is slightly asymmetric, due to the stress contrast of boron with nitrogen. Because of this, cracks can bifurcate and form branches.
The crack that splits means it's turning. To make the crack harder to propagate, this steering crack needs additional energy. H-Bn is more elastic than graphene.

H-BN's excellent heat resistance and chemical stability have made it an important material for two-dimensional electronic devices and other 2-bit devices. hBN's toughness makes them an ideal choice for flexible electronic. This is also important for the development and use of flexible 2D materials in two-dimensional electronics.
Future uses for h-BN include electronic textiles that are flexible and electronic skin, and implantable electronics that connect directly to the brain.

Boron Nitride BN Powder Price
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Application of graphene in lithium-ion batteries

admin / 2023-03-31 / no Comments

The unique physical and chemical characteristics of graphene make graphene a great candidate for research in the area of electrode material development. According to various application areas, graphene can be divided into the following three categories: graphene application in lithium-ion cells, graphene application in anode material, and other uses in lithium-ion lithium-ionbatteries.
Application to graphene in cathode material
The applicable cathode materials for lithium-ion battery batteries should have high reversible potential, stable potential, low production cost, and non-toxicity. LiFePO4 (low lithium ion mobility) and lithium iron phosphate are the most popular cathode materials used for lithium-ion cells. It is possible to improve the conductivity and rate performance of LiFePO4 materials by adding graphene.
A lack of research on graphene material positive electrodes is due to its uniqueness. Research has shown that hydrothermal methods of covering graphene directly on LiFePO4 surfaces to create composite materials have a poor rate performance improvement. It could be because graphene structure is destroyed or stacked.
The study showed that half-wrapping LiFePO4 in graphene can improve its conductivity. But, it decreases the ion transmission effectiveness after full-wrapping it. This could be because lithiumions cannot pass through six-membered rings of graphene. To prepare LiFePO4/graphene hybrids, some researchers have ultrasonically mixed LiFePO4 Nanoparticles and graphite dioxide. The specificity of lithium insertion can now be significantly increased after the material has been further coated with carbon. This can still be maintained at approximately 70mAh/g under high rates of 60C.

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The Naming Method of Graphene

admin / 2023-03-29 / no Comments

Graphene Graphene a material where carbon atoms are tightly packed into a single layer, two-dimensional honeycomb lattice. Graphene exhibits excellent optical, mechanical, and electrical properties. This material has great potential for applications in materials science and micro-nano processes, energy, biomedicine and drug delivery. It is expected to be a breakthrough material in the near future.
To regulate the growth of the graphene industry, it is important to have a better understanding of the concept graphene. China Graphene Standards Committee looked at single-layer and double-layers of graphene as well as single-layer and single-layer oxide graphene. There are many concepts like reduced graphene dioxide, functionalized graphene and graphene material.

The material's electronic energy band structure has exceeded its three-dimensional limit, when 10 graphene layers are present. Therefore, the standard defines graphene as being within 10 layers. A single-layer graphene is a two-dimensional material made of carbon atoms that are arranged closely in a hexagonal honeycomb structure.

Two-layer graphenereferss to two layers carbon atoms that are frequently and closely packed into a benzene ring structural (that's, a hexagonal honeycomb construction) and are made up of various stacking methods (including AB, AA, and AA' stacking). Dimensional carbon materials.

The few-layer grapheneis a 2-dimensional carbon that is composed of 3-10 layers each of carbon atoms. It can be stacked in many different ways, including ABC stacking or ABA stacking. Material.

Single-layer Grapheneoxide - A two-dimensional carbon material that has oxygen-containing functional chains attached to the surface or boundary of a one-layer graphene. Grapheneoxide is a carbon material that has oxygen-containing functional links attached to the surface and boundary at least one graphene carbon atom layer. Graphene oxide also includes the previously mentioned single-layer graphene oxygen.

Single layer reduced graphene oxygen refers to two-dimensional carbon materials obtained by deoxidizing single-layer graphene dioxide by incomplete removal (groups), of oxygen-containing functional units (groups). This can be done by heat, chemical, or electrochemical treatment.

A two-dimensional carbon substance called reduced graphene oxide is created by deoxidizing or reducing the oxygen-containing functional group (groups) of graphene oxide using chemical, electrochemical or heat treatment. One-layer reduced grapheneoxide is included in the reduction of graphene.

Functionalized graphene is a kind of graphene that contains heteroatoms/molecules (such as hydrogen, fluorine, oxygen-containing groups and other surface modification to form bonds, nitrogen, boron and other elements substitution doping, heteroatom/molecule intercalation) Etc.) Two-dimensional carbon material. Functionalized graphene can be either the grapheneoxid described above or reduced grapheneoxid.

This definition includes single-layer graphene as well as double-layer and few-layer versions of graphene. Both can be called graphene material.

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Why is few layer graphene so important

admin / 2023-03-20 / no Comments

Is there a few layer of graphene in the world? The Very few layers graphene The original crystal structure of flake graphite is retained. It has the following characteristics: a high shape ratio (diameter/thickness), good electrical, thermal, and mechanical properties, great conductivity, excellent lubrication and corrosion resistance, and many other attributes. A few-layer graphene has a 400-700 m2/g specific surface and 0.553.74 millimeter thickness. The graphene is easily mixed with polymers and other materials to form a good composite interface. It has a large specific surface. The few graphene layers produced by the company has enabled them to produce large quantities of industrial scale products.

The main applications of graphene with few layers
Graphene, an industrial-scale functional material that is excellent as a base material, will be a key component in an industrial revolution. The graphite flake attached to the inorganic nano particles prevents these flakes from being stacking repeatedly during chemical reduction. This can encourage the creation of new types of graphene-based materials. It is widely applicable in a variety of fields such as catalysis, electronics, supercapacitors and batteries. The ability to significantly increase the performance of nanomaterials allows for some of the most promising nanotechnology applications materials to become widely industrialized. Materials in nanotechnology will be extensively industrialized.

Few-layer graphene's optical properties
A few graphene layers have excellent optical properties. Absorptivity in broad wavelengths is around 2.3%. This makes it almost transparent. With graphene thicknesses ranging from several layers to many, the absorptivity rises by 2.3% with increasing thickness. Large area graphene has exceptional optical properties. Its optical properties also change as graphene thickness changes. This unique low-energy electronic structure for single-layer graphene is quite unusual. You can adjust the band gap between 0.25 eV and 0.25 eV by applying voltage to double-grid double-layer graphene EET at room temperature. You can tune the graphene's optical response by applying magnetic field.

Are there any health risks from less graphene?
Sharp and small graphene pieces can easily be broken down. Human cells can absorb these small graphene fragments if they come in contact with them. Although the effects of long-term exposure are still not known, literatures about graphene drug carriers and graphene activity have indicated that graphene is extremely stable and difficult to react at ambient temperature. This perspective shows graphene to be relatively safe.

Prices for few layers of graphene
Price will depend on how small and pure the layer graphene particles are. The purchase volume may also have an effect on cost. Large quantities of small amounts will result in a lower price. On our website, you can see the cost of few layers graphene.

Fewer layer graphene suppliers
The Advanc3dmaterials Advanced Material Nano Technology Co. Ltd. Luoyang City (Henan Province), China. This is an established and reliable global supplier of chemical material. With more than 12 years experience, it can provide high quality chemical materials and nanotechnology products, such as few layer graphene. We are happy to provide high-quality, cost-effective few layer graphene. Get in touch You can also inquire at any time.

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Lithium Battery Anode

Lithium Battery Anode Material Few Layer Graphene CAS 1034343-98-0

admin / 2023-02-19 / no Comments

About Lithium Battery Anode Material Few Layer Graphene:
What is few layer graphene? The few graphene layers are made up of ultra-thin layers of carbon atoms arranged in a hexagonal honeycomb lattice. Graphene films produced by chemical vapor deposition (CVD) are polycrystalline in nature, with multiple small graphene domains growing and merging into a continuous film.

Compared to single-layer graphene material, fewer layers have the potential to develop into materials or heterostructures -- by inserting different substances into their layered structures. Low-layer graphene inherits the original crystal structure and properties of natural flake graphite. It has a very large shape ratio (diameter/thickness ratio) with excellent electrical, thermal and mechanical properties. It has excellent conductivity, lubrication, corrosion resistance, high-temperature resistance and so on. Small layers of graphene have a specific surface of 400 ~ 700㎡/g and a thickness of 0.55 ~ 3.74nm.

Graphene has a high specific surface. Easy and other materials such as polymer material uniform composite, and form a good composite interface. The company's low-layer graphene products have formed large-scale industrial production capacity.

As an excellent basic material for the preparation of functional composites on an industrial scale, graphene with fewer layers will play an important role in the new round of the industrial revolution. Graphite flakes attached to inorganic nanoparticles can not only effectively prevent them from repeatedly stacking during chemical reduction.

In addition, it can also promote the formation of a new class of materials based on graphene as a carrier. Graphene-inorganic nanocomposites show excellent performance, which can be widely used in emission displays, sensors, supercapacitors, batteries, catalysis and other fields, which can significantly improve the performance of nanomaterials. This enables the extensive industrial application of the most promising materials in nanotechnology. RBOSCHCO is a trusted global Lithium Battery Anode Material Few Layer Graphene supplier, nitrogen doped graphene. Feel free to send an inquiry about the latest price of Few Layer Graphene at any time.

If you want to know graphene price/graphene cost, please send inquiry to sales1@rboschco.com

Performance of Anode Material Few Layer Graphene CAS 1034343-98-0 :

Few layer graphene ( CAS 1034343-98-0 ) is a two-dimensional carbon nanomaterial composed of carbon atoms and sp² mixed orbital hexagonal honeycomb lattice. Few layer graphene is one of the highest-strength materials known, but also has good toughness, and can be bent.

Technical Parameter of Anode Material Few Layer Graphene CAS 1034343-98-0 :

Product Name	CAS	Purity	SSA	Carbon atomic layers	Other Impurity ( ppm )
Few Layer Graphene	1034343-98-0	99%	≥350 m²/g	2-5	<1000

How is Lithium Battery Anode Material Few Layer Graphene Produced?
Synthesize fewer layers of graphene
First, a chemical vapor deposition (CVD) method was used to directly grow high-quality graphene films on copper foil. The film is then transferred to the desired substrate by a wet-chemical graphene transfer process.

Applications of Lithium Battery Anode Material Few Layer Graphene:
With a unique combination of novel electronic, optical and mechanical properties, graphene-based nanomaterials have found applications in energy generation and storage. For example, they are used in photovoltaic devices and batteries, sensors and flexible electronics, photodetectors and biomedical applications (such as drug delivery, biological imaging and tissue engineering).

Low-layer graphene has great value in energy applications, including hydrogen storage, natural gas storage, supercapacitors and lithium batteries.

The single-layer/low-layer graphene with few structural defects is the most widely used cathode material for commercial lithium-ion batteries. However, graphene with few layers rich in defects is the main electrode material for supercapacitors.

In supercapacitor application, few layers of graphene larger specific surface area are conducive to the high dispersion of nanoparticles, excellent electrical conductivity is beneficial to in the process of electrochemical electron transfer from nanoparticles to graphene substrate, which can effectively restrain the supercapacitor occurs due to reunite in the process of the electrochemical cycle of passive film phenomenon, improve the electrode material cycle performance.

Using graphene instead of the traditional graphite material will greatly improve the lithium storage capacity of the anode, and thus improve the energy density of the lithium-ion battery.

In addition, when graphene is used as the anode material of lithium-ion batteries, the diffusion path of lithium ions in graphene material is relatively short and the electrical conductivity is high, which can greatly improve its rate performance.

In terms of hydrogen storage, when some atoms (such as transition metal and alkali metal) are first adsorbed on the surface of graphene with few layers, charge transfer occurs between the adsorbed additional atoms and the substrate, which changes the local charge density, thus greatly increasing the adsorption capacity of graphene to hydrogen.

Storage Condition of Anode Material Few Layer Graphene CAS 1034343-98-0 :

The damp reunion will affect few layer graphene dispersion performances and using effects, therefore, the product should be sealed in vacuum packing and stored in a cool and dry room, the few layer graphene can not be exposure to air. In addition, the few layer graphene should be avoided under stress.

Packing & Shipping of Anode Material Few Layer Graphene CAS 1034343-98-0 :
We have many different kinds of packing which depend on the few layer graphene quantity.
Few layer graphene packing: 50g/bag or 100g/bag, 500g/bag, or as your request.
Few layer graphene shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.

Graphene Powder Properties
Other Names	Graphene nanopowder, 2D carbon, monolayer graphene, bilayer graphene, graphene nanosheets, graphene nanoribbons, graphene nanoplatelet
CAS No.	1034343-98-0
Compound Formula	C
Molecular Weight	12.01
Appearance	Black Powder
Melting Point	3652-3697℃
Boiling Point	4200℃
Density	2.267 g/cm3
Solubility in H2O	N/A
Thermal Expansion	N/A


Graphene Powder Health & Safety Information
Signal Word	N/A
Hazard Statements	N/A
Hazard Codes	N/A
Risk Codes	N/A
Safety Statements	N/A
Transport Information	N/A

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