Johnson Matthey Fuel Cells Limited

Johnson Matthey Public Limited Company

Silvain Buche

Jonathan David Brereton Sharman

Adam John Hodgkinson

Catherine Helen De Rouffignac

Thomas Robertson Ralph

Sarah Caroline Ball

Lorenz Gubler

David Edward Barnwell

Brian Ronald Charles Theobald

A binary alloy catalyst comprising platinum and tantalum, wherein the tantalum is present in the alloy at 15 to 50 atomic % and a phosphoric acid fuel cell comprising such a catalyst is disclosed. The catalyst provides a better CO tolerance.

Co-tolerant catalyst for PAFC

A sealed and/or reinforced membrane electrode assembly is disclosed. Encapsulation films, each comprising a backing layer and an adhesive layer, are positioned on the edges of at least one face of each gas diffusion substrate such that the adhesive layers impregnate into each gas diffusion substrate. Methods of forming sealed and/or reinforced membrane electrode assemblies are also disclosed.

Sealing of a membrane electrode assembly

The present invention relates to a composite membrane comprising at least one ion-conducting polymer and a network of randomly orientated individual fibers, wherein there is a continuous region of the membrane at one or both of the membrane faces wherein the density of fibers is lower than the density of fibers in the membrane as a whole. The invention further relates to processes for manufacturing membranes according to the invention, and membrane electrode assemblies comprising membranes according to the invention.

Composite membrane

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Reading, United Kingdom

Silvain Buche