Patent ID: 9440227
Filing Date: 2016-09-13
CPC Classification: B01J,C01B,Y02P

Claim Text:
1. A method for preparing a catalyst coating on a metal substrate, comprising: a) pre-heating the metal substrate to a temperature about the melting point of the metal substrate; b) thermally spraying a layer of α-alumina nanoparticles onto the pre-heated metal substrate to produce a composite substrate; c) coating the composite substrate with an alumina sol; d) drying and calcinating the alumina sol-coated composite substrate to form an α-alumina coated composite substrate; e) immersing the α-alumina coated composite substrate into a solution of active components to form a coating of the active components thereon; and f) drying and calcinating the active components onto the α-alumina coated composite substrate to obtain the catalyst coating.