Copper Nano Dispersion (Cu, Diameter: 80-100nm, Purity: 99.9%)

Typical Properties
CAS	7440-50-8
Catalog	ACM7440508-72
Molecular Weight	63.55 g/mol
Boiling Point	2580 °C
Melting Point	1083.4 °C(lit.)
Flash Point	-23 °C
Purity	99.9 %
Density	8.92 g/cm3
Appearance	Liquid
Storage	2-8 °C
Color	Black
Composition	Cu
Concentration	2 % in NMP/Water
Diameter	80-100 nm
pH	7.0±0.5
Precautions for use	This product is inert gas anti-static packaging, it should be sealed and stored in a dry and cool environment.
Quality Level	200
Shipping	Ambient Temperature
Solvent	NMP/Water

Overview

Description

Nano-copper colloidal particles are widely used in catalysis, magnetic fluid, lubrication and other fields because of their specific physical and chemical properties. Nano copper powder and colloidal copper are prepared by variable current laser ion beam gas phase method, which has large industrial output, spherical shape, uniform particle size, high crystallinity, high product purity, high surface activity, easy to disperse and industrial application.

Features

·Evenly dispersed, small particles
·Good compatibility, easy to disperse, easy to add a variety of systems
·Good system stability, reliable performance, safety and environmental protection
·High specific surface area, high loading, easy surface functionalization

Application

·Production of Microelectronic Devices
·Catalyst in the reaction process of carbon dioxide and hydrogen to methanol
·Conductive coating treatment on metal and non-metal surfaces
·Conductive paste, used as petroleum lubricant and pharmaceutical industry

Case Study

Synthesis of Multi-Sized Copper Nanoparticles and Their Catalytic Applications

Shikha J, et al. Transactions of Nonferrous Metals Society of China, 2015, 25(12), 3995-4000.

Copper nanoparticles (Cu NPs) can be synthesized in aqueous media by using L-ascorbic acid as a reducing agent and capping agent. Higher L-ascorbic acid concentration leads to more effective capping ability and then the formation of smaller Cu NPs. Furthermore, the synthesized Cu NPs possess catalytic activity for serine oxidation in aqueous acidic media. The catalytic activity of Cu NPs increases as the size of the nanoparticles decreases.
Synthesis and catalytic activity of Cu NPs
· The one step synthesis scheme of copper nanoparticles initiates with dissolving copper chloride dihydrate (0.02 mol/L) in deionized water to obtain a blue solution. L-ascorbic acid (0.1 mol/L) was dropwise added to the aqueous solution of copper salt with vigorous stirring at 353 K in oil bath.
· With the passage of time, the color of dispersion gradually changed from white, yellow, orange, brown finally to dark brown with a number of intermediate stages. The appearance of yellow color followed by orange color indicated the formation of fine nanoscale copper particles from L-ascorbic acid assisted reduction.
· The catalytic activity of synthesized Cu NPs was evaluated in the oxidation of serine by peroxomonosulphate (PMS). The deamination of L-serine was studied by the decrease in absorbance of serine at 206 nm at different intervals of time.