Method of making a hydrogen sensing pigment

摘要

Pigments comprising chemochromic metal oxide microparticles or nanoparticles the surfaces of which are superficially coated with nanoparticles of catalyst material. The pigments are prepared by mechanical or wet chemical processes.

主权项

1. A method of making a hydrogen sensing pigment for use in paints, inks, dyes, and powder coating materials, comprising:
mixing powder nanoparticles of metal catalyst material with powder microparticles of chemochromic metal oxide material; and superficially coating the powder microparticles of chemochromic material with the nanoparticles of the metal catalyst material by winding or milling the nanoparticles of metal catalyst material with the microparticles of chemochromic metal oxide material.