Nano gold colloids with good stability

Our client said Nano colloidal gold and gold nanoparticles of Hongwu are unrivaled – we found that your company the best that we could work with.”

Colloid gold solution possesses unique properties such as good optical characteristics, biocompatibility, and catalytic activity. 

The general purity of Hongwu's MWCNT is 99%. If not high requirements, lower purity about 90%+ one is also available. For some application, low purity MWCNT would be more cost-effective.

Superfine high purity silicon nanoparticles used in semiconductor materials,lithium-ion materials, solar cells,etc.

Zinc oxide (ZnO) Nanoparticle can be used for anti-UV with excellent performance. Nano size zinc oxide ZnO powder has optical, electrical, magnetic, thermal, sensitive and other properties that conventional coarse sizes do not have. Hongwu Nano long-term mass production and supply of high stable quality nano zinc oxide materials.

Singled walled carbon nanohorns is widely used in biosensors.

Zirconia Nanopowder has high temperature resistance, good chemical stability,widely used in functional ceramics.

Ferronickel Fe-Ni Nano Alloy is a weak magnetic field with high permeability and low coercive force in low frequency soft magnetic materials

Factory directly supply high purity 99.95% nano rhodium powder with high and stable quality, competitive price and good service. Nano Rh particle is mostly used for catalyst, photocatalyst with excellent performance.

Silicon nanopowders sepcification: 30-50nm 99%+, brown yellow, good spherical 100-200nm 99.9%+,brown black, irregular crystal form 300-500nm 99.9%+,brown black, irregular crystal form 1-2um 99.9+%, dark brown, irregular crystal form Silicon nanopowder properties: High purity, good dispersion performance, small size, uniform distribution, large surface area, high surface activity, low apparent density. Nano Silicon powders is non-toxic, odorless, and with active features. Nano silicon powder is a new material for high capacity lithium battery anodes. Silicon nanopowders use for the rechargeable lithium battery cathode material: Due to the high absorption rate of nanometer silicon and lithium batteries, the nano silicon for lithium can significantly increase the capacity of lithium battery (theory can reach 4000mA / h). Nano silicon powder and graphite replace the nano carbon powder as raw materials for the lithium anode material, use the mechanical milling method for preparing the best ratio of silicon / graphite composites, silicon and graphite, which is 1:9. Composition Si-C composite material, can effectively reduce the expansion when silicon absorption lithium ions, increase the affinity with the electrolytic solution, and easily dispersed and can improve the cycle performance. Nano silicon nanowires made of silicon powder used in rechargeable lithium battery anode material in or on the surface of the nano silicon powder coated graphite anode materials used in rechargeable lithium battery, rechargeable lithium batteries can be improved more than three times the capacity and charge-discharge cycles.

Cesium tungsten bronze is a typical compound of rare metal tungsten. Its chemical formula is Cs0.33WO3. It has a crystal structure similar to that of tungsten bronze. It has a special structure of oxygen octahedron, so it has excellent mechanical, optical and thermal properties.

Rare earth nano yttria powder is widely used as high chemical active electronic materials.