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US 2021/0277527 A1Published application
An inexpensive and robust oxygen evolution electrode
AssigneeUniversity of Southern California
InventorsSri NARAYAN, Debanjan MITRA, Phong TRINH
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Abstract
An electrochemical device includes an electrolyte, a cathode contacting the electrolyte, and an oxygen evolution reaction (OER) electrode operating as an anode contacting the electrolyte. The OER electrode includes an iron-containing substrate and a layer that includes a metal-containing layer disposed over the iron-containing substrate. The metal-containing layer includes a metal and iron, the metal being selected from the group consisting of nickel, cobalt, manganese, and combinations thereof.
Claims32
An electrochemical device comprising:
- an electrolyte;
- a cathode contacting the electrolyte;
- and
- an oxygen evolution reaction (OER) electrode operating as an anode, the OER electrode contacting the electrolyte, the OER electrode comprising:
- an iron-containing substrate;
- and
- a metal-containing layer that includes a component selecting from the group consisting of a metal ferrite, magnetite, alpha nickel hydroxide, and combinations thereof disposed over the iron-containing substrate, the metal ferrite including a metal and iron, the metal being selected from the group consisting of nickel, cobalt, manganese, and combinations thereof.
4 more elements
A method comprising:
- contacting an iron-containing substrate with a salt-containing solution having a metal salt selected form the group consisting of nickel salts, cobalt salts, manganese salts and combinations thereof to form a modified substrate having a metal-containing layer;
- and
- calcining the modified substrate to form at a sufficient temperature to form an OER electrode, the modified substrate including a metal-containing layer.
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Dependencies are inferred from the claim text.