Pt Doped Tungsten Oxide

Pt doped tungsten oxide can be synthesized by sol-gel method, which has the advantages of simple process, low equipment cost, controllable reaction process, and convenient production of thin film materials on a large scale. Some experts have adopted the sol-gel method to synthesize Pt-doped WO3 film. The process is as follows:

The H2WO4 sol was obtained by ion exchange in Na2WO4 solution, K2 (PtCl4) was added to the sol, and acetone was added to slow down the gel process, and then the glass substrate was immersed in the sol to obtain Pt-doped WO3 film with good optical properties and mechanical strength.

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

Experts say that the sol-gel method is mainly divided into two steps: firstly, the hydrolysis reaction between the solute and the solvent is used to dissolve the metal salt or the inorganic salt in the solvent, and the hydrolyzed product is re-aggregated into the nano particles by the polycondensation reaction to form a sol; The sol is aged and polymerized to form a gel; the gel is dried and sintered to prepare a material of a molecular or nano-substructure. Researchers can synthesize a variety of nano powders, films and other materials based on the characteristics of the sol and combined with different process parameters. However, what should be noted is that the application of sol-gel method is limited as the product tends to form hard agglomeration after drying and the reaction time is too long.

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