Johnson Matthey Fuel Cells Limited

Johnson Matthey Hydrogen Technologies Limited

Edward Anthony Wright

Ian Roy Harkness

Jonathan David Brereton Sharman

Alexander Martin Willcocks

David Thompsett

Graham Alan Hards

Janet M Fisher

Michael Ian Petch

Enrico Petrucco

Brian Ronald Theobald

Brian Ronald Charles Theobald

Emily Price

Janet Mary Fisher

Emily Rose Price

A catalyst-coated membrane (CCM) for use in a water electrolyser, having a laminate structure comprising: a first layer comprising a first membrane component having a cathode catalyst layer disposed on a first face thereof; a second layer comprising a second membrane component having an anode catalyst layer disposed on a first face thereof; and an intermediate layer disposed between the first and second layers, comprising a third membrane component having a recombination catalyst layer disposed on a first face thereof is disclosed. The CCM is useful within a water electrolyser. The recombination catalyst layer reduces the risk associated with hydrogen crossover and allows thinner membranes with lower resistance to be used.

Catalyst-coated membrane having a laminate structure

A catalyst layer including an electrocatalyst and an oxygen evolution catalyst, wherein the oxygen evolution catalyst includes a crystalline metal oxide including:

Catalyst layer

A catalytic material includes (i) a support material and (ii) a thin film catalyst coating having an inner face adjacent to the support material and an outer face, the thin film catalyst coating having a mean thickness of &#x2266;8 nm, and wherein at least 40% of the support material surface area is covered by the thin film catalyst coating; and wherein the thin film catalyst coating includes a first metal and one or more second metals, and wherein the atomic percentage of first metal in the thin film catalyst coating is not uniform through the thickness of the thin film catalyst coating.

Thin film catalytic material for use in fuel

A process for preparing a catalytic material including (i) a support material and (ii) a thin film catalyst coating, the coating including one or more first metals, wherein the process includes the steps of: providing a multilayer thin film coating of a second metal on the support material; and spontaneous galvanic displacement of at least some of the second metal with the one or more first metals; wherein the second metal is less noble than the one or more first metals.

Process for preparing a catalytic material

A porous catalyst layer formed from discrete particles of unsupported metal, wherein at least 80%, suitably at least 90%, of the discrete particles have a mass of from 1 to 1000 zeptograms, and wherein the catalyst layer has a metal volume fraction of less than 30% and a metal loading of less than 0.09 mg/cmis disclosed. The catalyst layer is suitable for use in fuel cells and other electrochemical applications.

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Reading, United Kingdom

Edward Anthony Wright