Patent ID: 8445062

Claim:
A process for making a metal oxide coated substrate, the process consisting of: a. contacting a metal salt with a first aqueous solvent to form a metal salt mixture, wherein the ratio of metal salt to solvent is from 20:1 to 1:4 by weight; b. reacting a sufficient amount of the metal salt mixture with at least one metal powder in a zero valence state at ambient conditions to initiate an oxidizing reaction between the metal powder and the metal salt mixture to form an oxidizing mixture; c. contacting the oxidizing mixture with a substrate, wherein the ratio of metal powder to substrate is at most 10:1; and, d. adding a sufficient amount of a second solvent to moisten the substrate and adhere the oxidizing mixture onto the substrate wherein the oxidizing reaction substantially proceeds forming a metal oxide coated substrate comprising from at least 5% to 75% by weight metal oxide.