05422331 is referenced by 64 patents and cites 30 patents.

A catalyst composition contains a catalytic material having having an undercoat layer containing a mixture of a fine particulate undercoat refractory metal oxide and a sol such as a silica sol, the undercoat providing good adherence to substrates, such as metal substrates, on which the catalytic material is disposed. An overlayer is coated over the underlayer and contains an overlayer refractory metal oxide, which may be the same as or different from the undercoat refractory metal oxide, and on which is dispersed one or more catalytic metal components, such as palladium and manganese components. The metal substrate may be made of, e.g., aluminum or titanium or alloys thereof, and provides a low pressure drop and lightweight catalyst, making the catalyst especially well adapted for use in aircraft to abate ozone in cabin air. A method of making the catalyst composition includes applying the undercoat to the substrate and calcining it, impregnating the overlayer refractory metal oxide with one or more catalytic metal components and depositing the overlayer over the undercoat, and calcining it.

Title
Layered catalyst composition
Application Number
8/202397
Publication Number
5422331
Application Date
February 25, 1994
Publication Date
June 6, 1995
Inventor
Joseph C Dettling
Howell
NJ, US
Michael P Galligan
Clark
NJ, US
Assignee
Engelhard Corporation
NJ, US
IPC
B01J 23/44
B01J 23/34
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