What is Magnesium Nitride Powder?

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How do you define it? Magnesium Nitride Powder? Magnesium-nitride, an inorganic compound, has the chemical composition Mg3N2. It’s a member of the cubic crystal system. The powder is yellow-green under pure magnesium, while magnesium nitride which contains some magnesium oxide impurities will be gray-white. Magnesium Nitride, just like other metal nitrides reacts to water to make ammonia, and it is frequently used as a catalyst.
Magnesium Nitride Pulver’s properties
Mg3N2 makes up the chemical formula. Molecular weight: 100.95 The loose powder can be found in a range of colors, from yellow-orange to green-yellow. High relative density of 2.71225 Solventible in acids; insoluble when ethanol. 800. It is soluble in acid, but not in ethanol. Sublimation occurs at 700 degC in vacuum. The air decomposes it into Mg(OH),2 and N3. You can prepare Mg(NH2)2 by heating MgEt2 to red heat and reacting with magnesium. This is useful for measuring the moisture content of alcohol-containing fuels. It is an organic compound that has wide applications. Magnesium Nitride can be used for many purposes. This can be used for the preparation of nitrides made from elements such as magnesium nitride, which has high hardness and wear resistance.
Magnesium Nitride Properties
Other Titles trimagnesium dinitride, Mg3N2 powder
12057-71-5
Compound Formula Mg3N2
Molecular Weight 100.93
Appearance Powders in yellow and brown
Melting Point N/A
Boiling Point N/A
Density 2.71 g/cm3
Solubility of H2O N/A
Exact Mass 99.961273
Magnesium Nitride Mg3N2 powder CAS 12057 71-5
Magnesium Nitride Pulver’s applications
1. It’s used in the preparation of nitrides of elements with high hardness. Magnesium nitride was the catalyst that was used in the successful synthesizing of cubic boron trioxide.
2. Additives to high-strength smelting of steel. Desulfurized magnesium is replaced by magnesium nitride Mg3N2 in the smelting construction steel. Magnesium Nitride (Mg3N2) can be used to increase the strength and density of the steel as well as its tensile forces. The use of magnesium trioxide (Mg3N2) to desulfurize can also reduce the amount of other additives, which helps reduce construction steel’s production costs.
3. The preparation of ceramic special materials
4. Foaming agent to make special alloys
5. This is used in the production of special glasses.
6. Cross-linking catalytic polymer;
7. The recycling of nuclear waste
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How do you define it? Magnesium Nitride Powder? Magnesium-nitride, an inorganic compound, has the chemical composition Mg3N2. It’s a member of the cubic crystal system. The powder is yellow-green under pure magnesium, while magnesium nitride which contains some magnesium oxide impurities will be gray-white. Magnesium Nitride, just like other metal… Continue reading →

High Purity Silicon Dioxide SiO2 powder CAS 7631-86-9, 99.9%

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Silicon dioxide is also called silica. It’s an oxide of silicon and has the chemical composition SiO2. Silica, which includes silica found in quartz and quartz sand, is collectively called silica. Particle Sizes: 10-30nm
Purity: 99.5-99.9%

Silicon Dioxide SiO2 powder
Silica Oder silicon dioxide It is The chemical formula for silicon oxide is SiO2. It is found as the most widespread form in nature. quartz diverse organisms. Silica, which is the principal component of sand, can be found in large parts of the planet. Silica is an extremely complex, abundant and diverse material family. It can come in the form mixed minerals or synthetic products. Notable examples include fused silica , fumed silica , silica gel aerogel . It can be used to make structural materials and microelectronics, which are electrical insulators.

Breathing in finely divided air Crystalline silica This toxic substance can inflame the lung and cause severe inflammation, such as silicosis or bronchitis. It also causes systemic autoimmune disorders like lupus, rheumatoid, and lupus. Amorphous silica may cause temporary inflammation in the lungs. However, all symptoms can be treated.

Amorphous silica is formed by long-range arrangement and disordered order of the silicon atoms. A silicon dioxide crystal has four oxygen atoms at its four corners. The silicon atoms will be at the centre of a regular trihedron. Numerous tetrahedrons can be held together with oxygen atoms located at their four corners. The two tetrahedrons that share an oxygen atom are called a tetrahedron. This means each oxygen-atom is bound to two silicon molecules.

Silica’s molecular formula is its simplest. SiO2 SiO2 doesn’t represent a simple molecular (just the ratio among the silicon atoms and oxygen atoms of the crystal silica). A pure crystal of natural silica is insoluble, hard and transparent. It’s often used for the manufacturing optical instruments.

To receive the latest information, send us an inquiry Silicon dioxide price Please fill out the form below if you wish to buy Silicon Dioxide SiO2 powder bulk.

Colloidal silicon dioxide Gaseous silica is produced by hydrolysis from silica compound, and is used for many medicines and foods.

Silicon Dioxide SiO2 powder performance

1 It has a high surface residue button of unsaturated hydroxyl groups and a different bonding status of hydroxyl groups. This makes it very scatter-friendly.

2 Nanosiliconoides Using sol-gel to synthesize small, uniformly sized particles.

3 To ultraviolet light, and displays high reflection characteristics (200 70% reflectivity, 280nm), 80%. For visible wavelengths (400–800nm), reflectivity 85%. The band of 800-1350 near-infrared reflectance is also higher than 70%.

Technical Parameters of Silicon Dioxide SiO2 –

Products

Nano silicon dioxide SiO2 powder

Analysis Project

Al,Fe,Ca,Mg,Cu,Mn,Na,Co,Ni,F.Si,Pb,K,N,C,S,F.O

Analyse Results

Chemical Composition

Wt%(Analysis)

Al

0.001

Fe

0.001

Ca

0.001

Mg

0.001

Cu

N.D

Mn

0.001

Na

0.001

Co

0.001

Ni

0.001

F.Si

0.001

Pb

N.D

K

0.001

N

0.005

C

0.002

S

0.004

F.O

0.050


It is simple. Silicon Dioxide siO2 powder produced?
Amorphous silicon dioxide preparation method
Preparing amorphous silica involves five steps: preparation of silica gel; granulation process; sintering and cleaning processes; drying process.
1. Silica gel preparation
Silica gel is made from silicon tetrachloride. Pulverizing organic silicon compounds, such as tetramethoxy siloxane, can also produce it. Fumed silica, however, can make silica gel.
2. Granulation Process
A silica powder can be made by dry drying silicone gel and then grinding the powder.
3. Insintering
Silica powder from the granulation is heated to 800°C to 1450°C before being sintered. Thermal plasma can be spheroidized to release argon at a preset flow rate. The output is then converted at a specified frequency in order to create plasma. Plasma torch: The sintered silica is heated to 2000°C, which will melt it.
4. Cleaning
After the spheroidization, any fine powder remaining on the surface of the silica powder spheroidized is removed.
5. Drying
Following the above process, silica powder should be dried.

Silicon Dioxide Uses:
Silica is used in the manufacture of many products. silicon dioxide glass Quartz glass, Water glass, Optic Fiber, are all important elements of the electronic industry. These include optical instruments, handicrafts, refractory material, and an important component for scientific research.

1. Most glass is made from silica. If silica is melted with other minerals, the freezing points reduction principle decreases the melting temperature and improves fluidity. SiO2’s glass transition temperature is approximately 1475K. The glass transition temperature of fused SiO2 is about 1475K. Most ceramic glazes consist mainly of silica.
2. Silica is also a good additive.
3. Silica is especially suitable for the granulation and extraction of oils and other extracts.
4. Silicium dioxide, as a disintegrant can significantly improve the fluidity and bulk density of the granules. It also increases the hardness of the tablets. You can use it as an internal desiccant to increase the drug’s stability.
5. Silica is also used to thicken liquid preparations, as a defoamer and filter aid.
6. Silica is used in approximately 95% of all commercially available silica products (sand), such as concrete production (Portland concrete).
7. Due to its natural absorption properties and light diffusion characteristics, silica has a significant role in cosmetics.
8. For the semiconductor industry, passivating silicon’s surface through thermal oxidation is essential. It’s used to make metal oxide field-effect transistors with MOSFET (metal oxide semiconductor field effects transistors) or silicon integrated circuit chips using planar technology.
9. You can use silica to extract DNA or RNA, as it is able to bind nucleic acids when there are chaotropic agents.
10. Because silicon dioxide can be used as a natural semiconductor oxide instead of other semiconductors, such as indium-phosphide and gallium arsenide, it is much more popular.
11. It is possible to grow silicon dioxide on top of the surfaces of silicon semiconductors. Silicon oxide can protect silicon surfaces during diffusion. It can also be used to mask diffusion.
12. Silicon dioxide in food Silica is used in food manufacturing as an anti-caking ingredient in creams or spices. This allows for fine powder flow and absorbs moisture.
13. Silicon dioxide in supplements .


Storage condition of Silicon Dioxide SiO2 pulver :
You should keep nanosilicon dioxide SiO2 powder in a dry, cool, and sealed environment.

Shipping and Packing of Silicon Dioxide SiO2 powder –
You can pack it in two plastic bags with the inside.
Silicon Dioxide SiO2 Powder Packaging: 100g, 500g and 1kg/bag. 25kg/barrel. Or as you request.
Shipping Silicon Dioxide SiO2 powder: could ship out by sea or by air as soon as payment receipt is received.


Buffalotours Nano Technology Co. Ltd. (Buffalotours), is a global trusted supplier and manufacturer that produces super-quality chemical materials.
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Silicon Dioxide SiO2 Powder Properties

Other Titles Fused quartz, silane, dioxo, Silicon (IV) Oxide, Cristobalite,
Silica, Crystalline silica, Dioxosilane, Sand, Silica glass,
SiO2, O2Si
7631-86-9
Compound Formula SiO2
Molecular Weight 60.09
Appearance Powder White
Melting Point 1,600deg C (2,912deg F)
Solubility In Water N/A
Density 2533 kg/m3
Purity 99.5-99.9%
Maximum Particle Size 10-30nm
Boling point 2,230deg C (4,046deg F)
Specific Heat N/A
Thermo Conductivity N/A
Thermal Expansion N/A
Young’s Module N/A
Exact Mass 59.9668 g/mol
Monoisotopic 59.967 D

Silicon Dioxide SIO2 Powder Safety & Health Information

Safety Notice Danger
Hazard Statements N/A
Flashing Point Non applicable
Hazard Codes N/A
Risk Codes N/A
Safety statements N/A
RTECS # N/A
Transport Information NONH
WGK Germany NONH

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Silicon dioxide is also called silica. It’s an oxide of silicon and has the chemical composition SiO2. Silica, which includes silica found in quartz and quartz sand, is collectively called silica. Particle Sizes: 10-30nm Purity: 99.5-99.9% Silicon Dioxide SiO2 powder Silica Oder silicon dioxide It is The chemical formula for… Continue reading →

Carbon Bromine

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carbon bromine (atomic symbol: CBr4) is a colorless, crystalline, nonflammable organic compound that has several industrial applications. It is a solvent for greases, waxes and oils, and is used in the plastic and rubber industry for blowing, vulcanization and polymerization.

It is also an ingredient in fire-resistant chemicals and various photochemical compounds. It is also used to separate minerals due to its high density.

In addition to the crystalline form, carbon bromine is available in ultra high purity, water soluble equimolar or tetraethylammonium form for crystal growth applications. It is generally immediately available in most volumes, and can be purchased by the gram or kilogram.

HCFC-142b is a chemically distinct isomer of HCFC-142. The lower-case b refers to a specific arrangement of atoms that does not have any relationship to the structural formula, but it is important for identification purposes.

In order to determine the rate of dehalogenation of 1,6-dibromohexane, cyclic voltammetry was performed in the presence and absence of 2 mM Ni(II) salen. The electrocatalytic reduction of the C-Br moiety of 1,6-dibromohexane was observed to be a first-order process that showed a linear increase toward the end of the electrolysis (curve A, black solid line). Cyclic voltammetry was recorded using a glassy carbon electrode, and ex situ GC analysis was employed to monitor the consumption of the n-hexane product. During the first 20 min of the electrolysis, n-hexane was consumed at a steady rate, but the amount increased and decreased at different rates in the following 14 minutes.

carbon bromine (atomic symbol: CBr4) is a colorless, crystalline, nonflammable organic compound that has several industrial applications. It is a solvent for greases, waxes and oils, and is used in the plastic and rubber industry for blowing, vulcanization and polymerization.It is also an ingredient in fire-resistant chemicals and various photochemical… Continue reading →

Aluminum Silver Alloy

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aluminum silver alloy is an alloy of two metals, silver and aluminum. It has a bright white color and malleability, making it one of the most popular metals for jewelry.

It is also tarnish resistant and corrosive-resistant. This alloy is used for pendants and necklaces, and is often plated with gold to give it a beautiful sheen.

The addition of silver to aluminum alloys exerts substantial effects on their physical properties and durability, especially in those based on the Al-Zn-Mg system. In some alloy systems, small additions of silver can cause serious structural changes in the material that make it less reliable for solder joint reliability testing.

Moreover, the silver addition increases the threshold stress for corrosion-corrosion cracking. It is important to know how the aluminum silver alloy will perform in a variety of environments before implementing it for production.

aluminum silver alloy can be smelted in air or oxygen, and is oxidized from 1073 to 1173 K (in the case of silver-cadmium alloy). The oxide dispersion in the alloy is dependent on the amount and type of oxygen.

In this study, we investigated the adhesion of the alloy Ag2Al NPs to a Si surface using a retraced force curve analysis. The results show that the alloy has a higher adhesive force than pure Ag NPs.

These findings have implications for the design of contact lenses and holographic optical elements made with aluminum silver alloys. They also have applications in a wide range of other industries, such as electronics and photovoltaics.

aluminum silver alloy is an alloy of two metals, silver and aluminum. It has a bright white color and malleability, making it one of the most popular metals for jewelry.It is also tarnish resistant and corrosive-resistant. This alloy is used for pendants and necklaces, and is often plated with gold… Continue reading →

How can infrared remote control quantum technology

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What is the color of cadmium selenide It’s a grey-brown, or red crystal, with a molecular form of CdSe. Cadmium selenide, a solid binary combination of cadmium & selenium is known as cadmium selenide. This is a transparent infrared-light-transparent semiconductor material of the n type. Buffalotours Advanced Material Nanomaterials has provided the particle size for cadmium selenide: particles, -100 mesh. Pureness: 99.9%.
Is cadmium selenide poisonous?
Cadmium can be a dangerous heavy metal and selenium may cause severe toxicity. Cadmium selenide has been shown to be a carcinogen. You should seek medical attention if you swallow it or come in contact with your eyes and skin. Research on developing control is the focus of most current work.

Cadmium selenide is used in the following ways:
1. Optoelectronic devices
2. Laser diode
3. Imagery for biomedical purposes
4. Nano sensing
5. High-efficiency solar cells
6. Thin film transistor

How can I keep cadmium selenide in my home?
You should store your goods in a dry, cool and ventilated warehouse. Do not expose to heat or fire. You must seal the packaging. You should keep it sealed. You should have the right type and amount of fire apparatus. You should equip your storage area with appropriate materials in order to stop any leakage.

Are cadmium and selenide bad for health?
The body can become ill from inhalation, oral or combined administration. It is very irritating. The contact can lead to nausea, vomiting and headaches. Chronic effects: kidney and lung damage. Highly toxic hydrogen sulfur dioxide gas can be created by acid or heat. Selenium oxide is the result of selenium dioxide’s combustion.

There are emergency treatments
1. Emergent treatment for leakage
You should isolate the source of contamination and limit access. The best way to protect emergency personnel is by wearing a personal positive pressure breathing apparatus as well as work clothes. To collect any small amounts of leakage, use a scoop to place in a covered, dry container. You can collect, recycle, or transport the material to a waste disposal site for proper disposal.
2. Protection steps
Protect your respiratory system A hood-style electric air-supply filter dustproof respirator is required for those times when you are exposed to dust. It is recommended that you use an air respirator in emergency situations such as rescue, evacuation or transport.
Eye protection Respiratory protection is a form of protection.
Protect your body Protective tape and clothing should be worn.
Protect your hands wear rubber gloves.
Others: Workplace policies prohibit smoking, eating, and drinking. Take care of your personal hygiene.
3. First-aid procedures
Kontakt with your skin Wash the clothing that has been contaminated immediately. Rinse your skin well with soapy water. Seek medical attention
Eye contact Rinse the eyes with warm water. Seek medical attention.
Inhalation: You can quickly move to another place that has fresh air. You should not restrict your airway. If it is hard to breathe, you can give oxygen. Give artificial respiration right away if your breathing is difficult. Seek medical attention.
Ingestion: Take enough warm water and induce vomiting. Seek medical attention.
Fire fighting method: Protective clothing must be worn by firefighters.
The extinguishing agent Sandy soil and dry powder carbon dioxide

Quantum technology can now be controlled remotely using infrared
Los Alamos’ team used the core of Cadmium Selenide within the cadmium Sulfide Shell to transform quantum dots into infrared light emitters with high efficiency. They can also be tuned for specific wavelengths using an intermediate layer made of mercury sulfide.

Cadmium selenide prices
Buffalotours (aka. Buffalotours (aka. Our company currently has a number of powder materials. You can also order OEM. We can provide cadmium selenide resin powder if required. To send an inquiry, click the appropriate products.

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What is the color of cadmium selenide It’s a grey-brown, or red crystal, with a molecular form of CdSe. Cadmium selenide, a solid binary combination of cadmium & selenium is known as cadmium selenide. This is a transparent infrared-light-transparent semiconductor material of the n type. Buffalotours Advanced Material Nanomaterials has… Continue reading →

Ferroniobium

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ferroniobium is a microalloying metal used to increase the strength of steel. Niobium, when alloyed with a high amount of iron, increases the strength and reduces the weight of steel. It is also a corrosion-resistant metal that can withstand very high temperatures.

The addition of niobium to a steel produces a microalloy called High-Strength, Low-Alloy (HSLA). This 65% niobium and 35% iron alloy improves grain refinement, precipitation hardening, and weldability. It also increases the fatigue resistance of steel, enabling it to withstand repeated stress and wear over time.

HSLA steels are used in oil and gas pipelines, automobiles, bridges, construction equipment, tools, ship hulls, railroad tracks and any other structure that requires a good strength-to-weight ratio. It can be added to many different types of steel to improve its properties.

Global production of ferroniobium is controlled by four companies: CBMM, China Molybdenum, Magris Resources and Anglo American. CBMM leads the industry with 85% of global production. Other producers include Brazil, Canada and Russia.

Demand for ferroniobium is primarily driven by the need for HSLA steel in construction, automotive and oil and gas industries. However, it is also used in aerospace applications and battery packs for electric vehicles.

Supply is limited, as only two mines produce commercially significant quantities of ferroniobium. As a result, no new mines have come online since 1976. This trend is expected to continue, though several companies are pursuing their feasibility studies for entering the market.

ferroniobium is a microalloying metal used to increase the strength of steel. Niobium, when alloyed with a high amount of iron, increases the strength and reduces the weight of steel. It is also a corrosion-resistant metal that can withstand very high temperatures.The addition of niobium to a steel produces a… Continue reading →

Advantages and Disadvantages of Aluminum Titanium Alloy

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aluminum titanium alloy is a promising material for high temperature applications because it has excellent anti-creep, antioxidant, ductility, and strength properties. However, it is difficult to form and has a poor plasticity, making it hard to produce titanium parts with complex shapes.

Aluminum and titanium are both commonly used in a variety of products, including aircraft engines, medical devices, satellite components, marine equipment, and fixtures. Each metal has its own unique properties, so it is important to understand the differences between them in order to choose the best one for your application.

aluminum titanium alloy is a promising material for high temperature applications because it has excellent anti-creep, antioxidant, ductility, and strength properties. However, it is difficult to form and has a poor plasticity, making it hard to produce titanium parts with complex shapes.Aluminum and titanium are both commonly used in a… Continue reading →

What is γ-Alumina?

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What exactly is g_Alumina? Alumina in g type crystal form is called gal-alumina.
–type alumina does not dissolve in water, but it can dissolve in acidic or alkali solutions. If heated to 1200°C, the g-type of alumina will transform into a-type. It is porous with a surface area of many hundred square metres per gram, high activity, and strong adsorption capabilities. These cylindrical pinkish or colorless industrial products have good resistance to high pressure.

gAlumina Properties
The particle size of g-phase nano-alumina is smaller than that of 20nm, with uniform particle size distribution, high purity, excellent dispersion, high specific surface, high temperature-resistant inertia and high activity, so it belongs to active alumina, porosity, high hardness and good dimensional stability.
You can use it to strengthen and toughen many types of materials, including rubber, plastics, ceramics, refractories, etc., particularly in improving compactness and finish as well creep resistance, creep resistance, wear resistance and resistance to cold and high fatigue. It’s easy to dissolve in solvent water. You can mix it with ethanol, propanol and propylene glycol or isopropanol as well as ethylene glycol monobutylether, acetone and butanone. It’s often used in epoxy resin, plastics, and other materials.

What does g-Alumina do?
Coatings: Wear-resistant coatings, porcelain film coatings and plasma spraying.
Ceramics: Bioceramics, translucent ceramics and alumina clays.
The petrochemical industry has catalysts, catalyst carriers and automotive exhaust purification materials.
Polishing materials: single crystal silicon wafer grinding and submicron/nanometer grinding materials.
Lighting: High pressure sodium transparent tube, long afterglow and rare earth tricolor, phosphors, and other phosphors.
Electronics: Single crystal and integrated circuit substrates, far-infrared material, and single crystal materials
Cosmetic Fillers:
Organic membrane materials.

Aluminum Oxide Price
Price is affected by many things, such as the demand and supply in the market and industry trends. Economic activity and market sentiment are also important.
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Aluminum Oxide Supplier
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What exactly is g_Alumina? Alumina in g type crystal form is called gal-alumina. –type alumina does not dissolve in water, but it can dissolve in acidic or alkali solutions. If heated to 1200°C, the g-type of alumina will transform into a-type. It is porous with a surface area of many… Continue reading →

The Main Synthesis Method of Titanium Carbide

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What is titanium carbonide?

TiC is a cubic, light-gray, chemically insoluble crystal system.

TiC is an iron-gray crystal that has metallic luster. It’s a cubic-shaped crystal of NaCl type. The lattice constant for this structure is 0.4329nm. Fm3m stands for space group. Carbon atoms, and titanium Atoms between TiC can be considered strong covalent bond in the lattice. The bonded atoms are similar to metals in that they have a high melting, boiling, hardness and hardness. TiC can be used to make cermets as well heat-resistant alloys, cemented carides, anti-wear and radiation materials.

The Synthesis Method for Titan Carbide

Carbon black and titanium dioxide are two of the raw materials.

After the mixture of high-purity titanium dioxide with carbon black is complete, it’s press-formed using either a vertical or horizontal carbon tube furnace to create a dry powder. The titanium carbide powder is obtained by pulverizing the titanium carbide at a temperature of 19002300degC. Sponge titanium or titanium alloy, as well as titanium waste, are used to produce sponge titanium. These raw materials can be mixed with carbon black and then heated in high-purity hydrogen streams up to 15001700degC. Titanium carbide.


The direct carbonization of titanium steel:

It is reduced by sodium, or made from titanium hydride. Less than 325 mesh was mixed with carbon black. After that it was melted under pressure to 0.98 Pa. The type of raw material and the particle size, along with their reactions performance, will affect the reaction temperature and hold time.


Gas phase reaction method:

Hydrocarbons containing hydrogen (methane/benzene etc.) are mixed into the steam of titanium Tetrachloride. They are then combined with other hydrogen-containing hydrocarbons, such as methane and benzene. Reaction results in the formation of titanium carbide on substrate. Reaction conditions like the reaction temperature, gas flow rate and concentration of reaction gases are all different. The form of the precipitated titan carbide also differs.

Buffalotours advanced Material Tech Co., Ltd., (Buffalotours), a professional supplier of Boride Powder, has over 12 years of experience in the development and research of chemical products. You can pay by credit card, T/T and Paypal. Trunnano ships goods by FedEx or DHL to overseas customers by air and sea.

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What is titanium carbonide? TiC is a cubic, light-gray, chemically insoluble crystal system. TiC is an iron-gray crystal that has metallic luster. It’s a cubic-shaped crystal of NaCl type. The lattice constant for this structure is 0.4329nm. Fm3m stands for space group. Carbon atoms, and titanium Atoms between TiC can… Continue reading →

Properties of Copper Nanoparticles

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properties of copper nanoparticles

Various physical, chemical and biological properties have been observed in copper nanoparticles (NPs) such as antimicrobial activity, specific drug transport, photoluminescence and anticancer activities. These properties are important to determine the potential biocompatibility of copper NPs with humans and animals.

Synthesis and characterization of copper nanoparticles are essential for understanding their effects on humans, animals and environment. A variety of characterization techniques are available, including X-ray diffraction, transmission electron microscopy (TEM), scanning electron microscopy and magnetic measurements.

A TEM study of bare Cu NPs prepared by a solution process revealed that the interatomic distance of the Cu atoms is constant up to the outermost surface, which is an interatomic distance of 0.25 nm in the [1(bar 1)0] direction and significantly different from the elongated interatomic distance of bulk and monolayer Cu oxide (Supplementary Figs. 1, 2d-f).

Non-oxidized bare Cu NPs are stable in air after 15 and 31 days. The energy-loss near-edge structure of metallic Cu (Supplementary Figs. a, b and c) displayed by bare Cu NPs over time is closely akin to that of all of the displayed non-oxidized Cu NPs.

In addition, these non-oxidized bare Cu NPs were found to be stable in deionized water for 60 min, without any additional post-treatments or surface passivation processes required. This result suggests that the direct transfer of excess electrons to Cu NPs is sufficient to ensure their oxidation resistance in the mass-produced bare form, as previously observed for oxygen-adsorbed silver NPs.

properties of copper nanoparticlesVarious physical, chemical and biological properties have been observed in copper nanoparticles (NPs) such as antimicrobial activity, specific drug transport, photoluminescence and anticancer activities. These properties are important to determine the potential biocompatibility of copper NPs with humans and animals.Synthesis and characterization of copper nanoparticles are essential… Continue reading →