Ultrafine Tungsten Trioxide

Ultrafine tungsten trioxide has special physical and chemical properties such as catalysis, photochromism, electrochromism, gas sensing and pressure sensing. So, it is widely applied in the fields of photocatalysis, solar absorption, sensor, military invisibility and fuel cell. And therefore, “How to Prepare Ultrafine Tungsten Oxide Powder More Environmentally Friendly and More Efficiently” has become a hot topic.ultrafine tungsten oxide picture
Preparation of ultrafine tungsten trioxide is mainly to control the crystallization process. That is means to control the main two steps:
1. Microscopic grains appear. And they are the core of crystallization.
2. Crystal nucleus grows up to become a macro crystal.

Therefore, based on the crystal nucleation theory, the preparation method of ultrafine tungsten oxide can be divided into three types: physical method, chemical method (liquid phase method) and comprehensive method in accordance with the reaction characteristics. Liquid phase method can be divided into precipitation method, hydrothermal method, microemulsion method and sol-gel method according to different preparation process.

More details, please visit:
http://www.tungsten-powder.com/tungsten-trioxide-standard.html

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