Nano Tungsten Trioxide Powder Tungsten(VI) Oxide WO3 Nanoparticle for catalyst

Product Description

Specification of WO3 Nanoparticle:

Particle size: 50nm

Purity: 99.9%

Color: yellow, blue, purple

Features of WO3 Nanopowder:

1. Visible light transmittance greater than 70%.

2. Near-infrared blocking rate above 90%.

3. UV-blocking rate above 90%.

Application of Nano Tungsten Trioxide Powder:

WO3 nanoparticles powder can be used as catalyst. 

Studies have shown that using 30% H2O2 as an oxygen source and using tungsten trioxide alone as a catalyst to catalyze the oxidation of cyclohexene into adipic acid can achieve higher yield and purity. When the amount of tungsten trioxide is 5.0 mmol and the molar ratio of WO3:cyclohexene:H2O2 is 1:40:176, the reaction is carried out at reflux temperature for 6 hours, and the separation yield of adipic acid is 75.4%. The purity is 99.8%. The tungsten trioxide catalyst is repeatedly used 4 times, and the separation yield of adipic acid can still reach more than 70%. Combining FTIR and XRD analysis proved the structural stability and reusability of the catalyst during the oxidation reaction of cyclohexene catalyzed by tungsten trioxide.

Compared with the Pt/CNTs catalyst without WO3 modification, the Pt/ WO3-CNTs composite catalyst not only shows relative large electrochemical active surface area, high catalyst activity toward methanol electro-oxidation, but also exhibits very high stability with apparent antiposion tolerance to the incomplete oxidized species during methanol oxidation.