Hydrothermal Synthesis of WO3

Details: Category: Tungsten Information; Published on Thursday, 05 February 2015 17:45

The adsorption of gases basically occurs at the surface level of sensing materials, and an increase in the active surface area of the semiconductor oxide would enhance the properties of the materials used for gas sensors. Therefore，surface morphology of WO3 influences the gas sensitivity in a great degree. It has been verified that, in the hydrothermal process, the morphology of the WO3 can be tuned by some assisting agents such as surfactant, inorganic salt, complex agent and some dissoluble organic acid. The tungstate is widely used as tungsten sources.

Tungsten trioxide can be produced by different chemical reactions. The addition of assistant reagents affects the structural morphologies and grain sizes of WO3. Most final products are nanostructures and possess higher surface-to-volume ratio so that the sensor signal caused by the reaction with the target gas is stronger than the larger scale ones. Therefore, adopting hydrothermal method for the synthesis of WO3 is conducive to improve the gas sensing characteristics of WO3.

In addition, the synthesized WO3 exhibits uniform size and morphology. Once the WO3 is widely applied in the gas sensor filed, the hydrothermal method will be used for a mass synthesis of WO3.

Tungsten Powder Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-powder.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

Latest Articles

Link

Address: 3F, No.25-1 WH Rd., Xiamen Software Park Ⅱ, FJ 361008,China
Phone:+86-592-5129696,+86-592-5129595; Email:

sales@chinatungsten.com
Certified by MIIT:闽B2-20090025　闽ICP备05002525号-1　