Silver Ag Nanopowder Water Dispersion (Ag, 2 nm, 2000ppm)

Silver (Ag) Nanopowder Water Dispersion (Ag, 2 nm, 2000 ppm) is a water-based dispersion containing silver nanoparticles (Ag), with a very fine particle size of 2 nm and a concentration of 2000 parts per million (ppm). Here are the key technical specifications and properties of this material:

1. Composition and Properties:

• Material: The dispersion contains silver nanoparticles (Ag), known for their excellent electrical conductivity, thermal conductivity, and antimicrobial properties.
• Particle Size: The nanoparticles are extremely small, with a particle size of 2 nm. This fine size provides a high surface area relative to volume, which enhances the material’s reactivity, stability, and performance in various applications.
• Concentration: The 2000 ppm concentration means that for every million parts of the dispersion, 2000 parts are silver nanoparticles. This is a much higher concentration compared to the 200 ppm dispersion, offering a more significant presence of silver in the solution.
• Water-Based: The nanoparticles are dispersed in water, making this material easier to handle and environmentally friendly, compared to solvent-based dispersions.

2. Key Features:

• High Concentration: With a 2000 ppm concentration, this dispersion contains 10 times more silver than a 200 ppm version, making it suitable for applications where higher silver content is required.
• Ultrafine Particle Size: The 2 nm particle size allows for superior reactivity, high surface area, and improved functionality compared to larger silver particles. The small size also contributes to the material’s high stability in suspension.
• Water-Based Dispersion: This is a water-based dispersion, meaning it is relatively safe, non-toxic, and easy to work with, without the need for specialized solvents or handling procedures.

3. Applications:

• Electronics and Conductive Inks: Due to its excellent electrical conductivity, this silver nanopowder is commonly used in electronic components, conductive inks, and printed electronics. The high concentration can be beneficial in applications requiring a high level of conductivity.
• Antimicrobial Coatings: Silver nanoparticles are well-known for their antimicrobial properties. This dispersion is ideal for use in coatings and medical devices where microbial growth needs to be controlled, such as wound dressings, surgical instruments, and textiles.
• Catalysis: Silver nanoparticles are also used in catalysis for chemical reactions. The high concentration of silver can enhance the catalytic properties for various reactions.
• Sensors and Biosensors: Due to their high surface area and reactivity, silver nanoparticles are useful in the development of sensors and biosensors, especially where high sensitivity is required.
• Photovoltaic and Optoelectronic Devices: Silver nanoparticles can be incorporated into solar cells and LEDs to improve optical properties and efficiency.
• Water Purification: The antibacterial properties of silver make it useful in water purification systems, where the dispersion can be used to control bacterial growth.

4. Advantages:

• High Reactivity: The 2 nm particle size provides a high surface area, which increases the material’s reactivity for catalytic, antimicrobial, and electronic applications.
• Antimicrobial Properties: Silver nanoparticles are widely used for their antibacterial and antiviral properties, making this dispersion useful for applications requiring antimicrobial activity.
• High Concentration: The 2000 ppm concentration allows for greater silver content in applications that require more substantial antimicrobial effects, electrical conductivity, or catalytic properties.
• Environmentally Safe: The water-based formulation makes the dispersion safer to handle and environmentally friendly compared to solvent-based alternatives.

5. Handling and Storage:

• Storage: The dispersion should be stored in a cool, dry place in a sealed container to prevent evaporation of water and to avoid particle settling over time.
• Handling: Handle with protective gear, such as gloves and goggles, to avoid contact with the nanoparticles, which may pose health risks if inhaled or ingested.
• Stirring: Regular stirring or shaking may be required to prevent sedimentation of the nanoparticles in the dispersion over time.

6. Potential Limitations:

• Sedimentation: As with most nanoparticle dispersions, there may be sedimentation of the nanoparticles over time, which can affect the consistency and uniformity of the dispersion. Stirring or shaking can help address this issue.
• High Silver Concentration: The 2000 ppm concentration might be too high for certain applications that require lower amounts of silver, and careful dosing or dilution may be necessary.

Summary:

Silver Nanopowder Water Dispersion (Ag, 2 nm, 2000 ppm) is a high-concentration, water-based dispersion containing silver nanoparticles with a particle size of 2 nm and a concentration of 2000 ppm. The ultrafine particle size and high concentration make it ideal for use in conductive inks, antimicrobial coatings, catalysis, sensors, water purification, and more. The dispersion offers excellent electrical conductivity, high surface area, and antimicrobial properties, making it highly effective for advanced applications that require significant amounts of silver.