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US 2019/0296362 A1Published application
Catalyst, anode, membrane electrode assembly, water electrolysis cell, stack, water electrolyzer, and hydrogen utilizing system
AssigneeKabushiki Kaisha Toshiba
InventorsWu MEI, Atsuko IIDA, Norihiro YOSHINAGA, Yoshihiko NAKANO
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Abstract
A catalyst of an embodiment includes a porous structure including aggregates of particles containing Ru and metal atoms M different from Ru. The particles are a metal oxide. A metal atom ratio of the metal atom M in a surface region of the porous structure is higher than that of the metal atom M in the porous structure as a whole.
Claims20
A catalyst comprising a porous structure including aggregates of particles containing Ru and metal atoms M different from Ru, wherein
- the particles are a metal oxide and
- a metal atom ratio of the metal atom M in a surface region of the porous structure is higher than that of the metal atom M in the porous structure as a whole.
Dependencies are inferred from the claim text.