Coated materials
AssigneeJohnson Matthey Public Limited Company
InventorsKatharine Elizabeth Goodman, John William Hayes, Chandresh Nemchand Malde, Michael Ian Petch
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Abstract
A substantially complete coating of a zeolite onto a material such as catalyst particles can be achieved by treating the material prior to or simultaneously with zeolite formation, with a polyelectrolye. Copper catalyst systems show good hydrogen storage while blocking access of hydrocarbons to the catalyst.
Claims16
A method for the deposition of a coating of a synthetic zeolite onto a substrate material, comprising the treatment of the material with a polyelectrolyte prior to or simultaneously with formation of the zeolite in an alkaline reaction medium surrounding the material.
A copper catalyst deposited on an oxidic support and having a substantially complete coating of a zeolite.
Dependencies are inferred from the claim text.