Method of manufacturing a platinum / tungsten oxide-based hydrogen sensitive film

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a Pt/WO₃ type hydrogen sensitive film which enables the formation of the Pt/WO₃ type hydrogen sensitive film on a base material having no heat resistance.;SOLUTION: The method for manufacturing the Pt/WO₃ type hydrogen sensitive film which is a method for manufacturing platinum/tungsten oxide type hydrogen sensitive film equipped with a carrier comprising platinum catalyst and a tungsten oxide carrying the platinum catalyst has: a process A for mixing a precursor of tungstic acid and a platinum compound to prepare a sol-gel solution of tungstic acid; a process B for coating the surface of the base material with the sol-gel solution, a process C for drying the base material coated with the sol-gel solution to form the coating film on the surface of the base material, and a process D irradiating the coating film formed on the base material with ultraviolet rays under an atmosphere containing a reductive gas such as formaldehyde to form the platinum/tungsten oxide type hydrogen sensitive film on the surface of the base material.;COPYRIGHT: (C)2010,JPO&INPIT