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Product Name: 2 Methylimidazole Zinc Salt
Product 2 Methylimidazole Zinc Salt CAS No. 59061-53-9 Odor Odorless Powder Purity ≥ 99 % APS 1-5 um Ingredient C8H10N4Zn Product Code NCZ-MS-101 RELATED INFORMATION
Storage Conditions:
Airtight sealed, avoid light, and keep dry at room temperature.
Please email us for the customization.
Email: [email protected]
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Product Name 3D Freestanding Graphene Foam
Stock No. NCZ-GSW-0023 Purity > 99.9% Graphene Film FET Electron Mobility on Al2O3 2000 cm2/Vs Hall Electron Mobility on SiO2/Si 4000 cm2/Vs PRODUCT DETAIL
CAS No.: 7440-44-0
Density: ~ 0.2g/cm3
Thickness: ~ 0.5mm
Number of layers: ~ 8 layers
Sheet Resistance <600Ω/sq Custom Order <300Ω/sq Transparency >95% $0.00 -
CAS No.: 7782-42-5 (graphene), 7440-02-0 (nickel)
Sheet Resistance <600Ω/sq Custom Order <300Ω/sq Transparency >95% Product Name 3D Graphene on Nickel/Copper Foam
Stock No. NCZ-GSW-0022 Purity > 99.9% Graphene Film FET Electron Mobility on Al2O3 2000 cm2/Vs Hall Electron Mobility on SiO2/Si 4000 cm2/Vs $0.00 -
Product Name: Acibenzolar S Methyl
Product Acibenzolar S Methyl CAS No. 135158-54-2 Color Pale, Light Orange Purity ≥ 99 % APS 1-5 um (can be customised) Ingredient C8H6N2OS2 Product Code NCZ-MS-102 RELATED INFORMATION
Storage Conditions:
Airtight sealed, avoid light, and keep dry at room temperature.
Please email us for the customization.
Email: [email protected]
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Product Name: Ag Nanoparticles Aqueous Dispersion
Product Ag Nanoparticles Aqueous Dispersion CAS No. 7440-22-4 Appearance Gray Powder Purity 99.9% APS 30 nm (Can be customized) Ingredient Ag Product Code NCZ-NSC414/20 Silver Ag Dispersion Description :
There are many ways silver nanoparticles can be synthesized; one method is through monosaccharides. This includes glucose, fructose, maltose, maltodextrin, etc., but not sucrose.
Ag Nanoparticles Aqueous Dispersion is also a simple method to reduce silver ions back to silver nanoparticles as it usually involves a one-step process. There have been methods that indicated that these reducing sugars are essential to the formation of silver nanoparticles.
Many studies indicated that this method of green synthesis, specifically using Cacumen platycladi extract, enabled the reduction of silver. Additionally, the size of the nanoparticle could be controlled depending on the concentration of the extract. Ag Nanoparticles Aqueous Dispersion that the higher concentrations correlated to an increased number of nanoparticles.
Smaller nanoparticles were formed at high pH levels due to the concentration of the monosaccharides. Another method of silver nanoparticle synthesis includes the use of reducing sugars with alkali starch and silver nitrate.
The reducing sugars have free aldehyde and ketone groups, which enable them to be oxidized into gluconate. The monosaccharide must have a free ketone group because to act as a reducing agent it first undergoes tautomerization. Besides, if the aldehydes are bound, it will be stuck in cyclic form and cannot act as a reducing agent.
For example, glucose has an aldehyde functional group that can reduce silver cations to silver atoms and is then oxidized to gluconic acid. The reaction for the sugars to be oxidized occurs in aqueous solutions.
The capping agent is also not present when heated.The growth of nanoseeds involves placing the seeds into a growth solution. The growth solution requires a low concentration of a metal precursor, ligands that will readily exchange with preexisting seed ligands, and a weak or very low concentration of reducing agent. The reducing agent must not be strong enough to reduce metal precursors in the growth solution in the absence of seeds.
Otherwise, the growth solution will form new nucleation sites instead of growing on preexisting ones (seeds). Growth is the result of the competition between surface energy (which increases unfavorably with growth) and bulk energy (which decreases favorably with growth).
The balance between the energetics of growth and dissolution is the reason for uniform growth only on preexisting seeds (and no new nucleation). Growth occurs by the addition of metal atoms from the growth solution to the seeds, and ligand exchange between the growth ligands (which have a higher binding affinity) and the seed ligands.
The range and direction of growth can be controlled by nano speed, the concentration of metal precursor, ligand, and reaction conditions (heat, pressure, etc.). Controlling stoichiometric conditions of growth solution controls the ultimate size of the particle. For example, a low concentration of metal seeds to metal precursors in the growth solution will produce larger particles.
Capping agent has been shown to control the direction of growth and thereby shape. Ligands can have varying affinities for binding across a particle. Differential binding within a particle can result in dissimilar growth across particles. This produces anisotropic particles with nonspherical shapes including prisms, cubes, and rods.
Silver Ag Dispersion Related Information
Storage Conditions:
Airtight sealed, avoid light and keep dry at room temperature.
Please contact us for customization and price inquiry
Email: [email protected]
Note: We supply different size ranges of Nano and micron as per the client’s requirements and also accept customization in various parameters.
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Ag-Doped Antibacterial Nanopowder Dispersion
Product Ag-Doped Antibacterial Nanopowder Dispersion CAS No. 7440-22-4 Appearance Gary Purity 99.9% APS 30 nm(Can be customized) Ingredient Ag Product Code NCZ-NSC430/20 Ag-Doped Antibacterial Nanopowder Dispersion Description :
Ag-Doped Antibacterial Nanopowder Dispersion is nanoparticles of silver of between 1 nm and 100 nm in size. While frequently described as being ‘silver’ some are composed of a large percentage of silver oxide due to their large ratio of surface to bulk silver atoms.
Numerous shapes of Ag-doped Antibacterial Nanopowder Dispersion can be constructed depending on the application at hand. Commonly used silver nanoparticles are spherical, but diamond, octagonal, and thin sheets are also common.
Their extremely large surface area permits the coordination of a vast number of ligands. The properties of silver nanoparticles applicable to human treatments are under investigation in laboratory and animal studies, assessing potential efficacy, toxicity, and costs.
The most common methods for nanoparticle synthesis fall under the category of wet chemistry or the nucleation of particles within a solution.
This nucleation occurs when a silver ion complex, usually Ag-Doped Antibacterial Nanopowder Dispersion, is reduced to colloidal silver in the presence of a reducing agent. When the concentration increases enough, dissolved metallic silver ions bind together to form a stable surface.
The surface is energetically unfavorable when the cluster is small because the energy gained by decreasing the concentration of dissolved particles is not as high as the energy lost from creating a new surface.
When the cluster reaches a certain size, known as the critical radius, it becomes energetically favorable, and thus stable enough to continue to grow.
This nucleus then remains in the system and grows as more silver atoms diffuse through the solution and attach it to the surface.
When the dissolved concentration of atomic silver decreases enough, it is no longer possible for enough atoms to bind together to form a stable nucleus.
At this nucleation threshold, new nanoparticles stop being formed, and the remaining dissolved silver is absorbed by diffusion into the growing nanoparticles in the solution.
As the particles grow, other molecules in the solution diffuse and attach to the surface. This process stabilizes the surface energy of the particle and blocks new silver ions from reaching the surface.
The attachment of these capping/stabilizing agents slows and eventually stops the growth of the particle.
The most common capping ligands are trisodium citrate and polyvinylpyrrolidone (PVP), but many others are also used in varying conditions to synthesize particles with particular sizes, shapes, and surface properties.
There are many different wet synthesis methods, including the use of reducing sugars, nitrate reduction, reduction via sodium borohydride.
The silver mirror reaction, the polyol process, seed-mediated growth, and light-mediated growth. Each of these methods, or a combination of methods, will offer differing degrees of control over the size distribution as well as distributions of geometric arrangements of the nanoparticle.
Ag-Doped Antibacterial Nanopowder Dispersion Related Information
Storage Conditions:
Airtight sealed, avoid light and keep dry at room temperature.
Please contact us for customization and price inquiry
Email: [email protected]
Note: We supply different size ranges of Nano and micron as per the client’s requirements and also accept customization in various parameters.
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Silver Iodide Silica Core Shell Nanoparticles
MF: AgI/SiO2 Chemical Name: Silver Iodide Silica Core Shell Nanoparticles Purity: > 99.99% APS: 80-100 nm (Size Customization possible) Form: Nanopowder/Nanodispersion Product Number: NCZCS101-19 Note: We supply different products of microparticles and Nanoparticles powder in all size range according to client’s requirements.
Please enquire for other core-shell particles having different thicknesses, porosities, and sizes.
If the item shown is not exactly what you require please let us know by sending us a message.
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MF: Al Chemical Name: Nano Alumina Dispersion
Purity: > 99.99% APS: 15-30 nm (Size Customization possible) Form: Nanodispersion Product Number: NCZD1301 CAS Number 1344-28-1 Please contact us for customization and price inquiry.
Note: We supply different size products of micro and Nano Size range dispersion according to client’s requirements.
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Alumina nanoparticles powder
MF: Al2O3 Chemical Name: Aluminum Oxide Nanoparticle Powder Purity: > 99.99% APS: 20-100 nm (Customization is possible) Form: Nanopowder/Dispersion Product Number: NCZ2201-G CAS Number 1344-28-1 Alumina nanoparticles powder
The aluminum Oxide gamma form is also available on request.
Note: We can supply different size products of microparticles and Nanoparticles Size range powder according to the client’s requirements.
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Alumina Powder
#Aluminum oxide particles, #Alumina powder, #Alumina micron particles, #Alumina micropowder
MF: Al2O3 Chemical Name: Alumina Powder Purity: > 99.9% APS: 1-45 Micro (Customization is possible) Form: powder/Dispersion Product Number: NCZM2201-20 CAS Number 1344-28-1 Note: We can supply different size products of microparticles and Nanoparticles Size range powder according to the client’s requirements.
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