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US 2015/0086903 A1Published application
Electrode catalyst for fuel cell, electrode for fuel cell including the electrode catalyst and fuel cell including the same, and method for preparing the electrode catalyst
AssigneeSamsung Electronics Co., Ltd.
InventorDae-jong YOO
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Abstract
An electrode catalyst for a fuel cell, the electrode catalyst including an active particle, the active particle including a core including platinum, a transition metal, and a first nonmetal element; and a shell on the core, the shell including an alloy including platinum and a second nonmetal element, wherein the first and second nonmetal elements included in the core and the shell are the same or different.
Claims23
An electrode catalyst for a fuel cell, the electrode catalyst comprising an active particle, the active particle comprising:
- a core comprising an alloy comprising platinum, a transition metal, and a first nonmetal element;
- and
- a shell on the core, the shell comprising an alloy comprising platinum and a second nonmetal element,
- wherein the first and second nonmetal elements included in the core and the shell are the same or different.
1 more element
A method of preparing an electrode catalyst for a fuel cell, the method comprising:
- heat-treating a metal precursor mixture comprising a platinum precursor, a transition metal precursor, and a nonmetal element precursor to obtain a precatalyst;
- and
- treating the precatalyst with an acid to obtain the electrode catalyst for a fuel cell, which comprises an active particle, the active particle comprising
- a core comprising an alloy comprising platinum, a transition metal, and a first nonmetal element;
- and
- a shell on the core, the shell comprising an alloy comprising platinum and a second nonmetal element,
- wherein the first and the second nonmetal elements included in the core and the shell are the same or different.
4 more elements
Dependencies are inferred from the claim text.