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.
Abstract:
A composite including: a carbonaceous material; and a solid solution including a first metal and a cerium oxide, wherein the solid solution is disposed on the carbonaceous material.
Abstract:
A method of controlling a concentration of a fuel to be supplied to a stack of a fuel cell system, the method including determining a reference concentration of the fuel to be supplied to the stack when the stack is in a normal mode, monitoring temperature of the stack, and controlling the concentration of the fuel to be supplied to the stack, based on a result of the monitoring the temperature of the stack.
Abstract:
An electrode catalyst for a fuel cell including porous catalyst particles including a noble metal having oxygen-reduction activity and a carbonaceous support, wherein the porous catalyst particles are disposed on the carbonaceous support, and an electrochemical specific surface area of the porous catalyst particles is about 70 m2/g or more.
Abstract:
A fuel cell electrode catalyst including an active complex including a cerium (Ce)-nitrogen (N) bond and having an oxygen reduction activity of at least 1 milliampere per square centimeter at 0.5 volts versus a reversible hydrogen electrode.
Abstract:
An electrode catalyst for a fuel cell, wherein the electrode catalyst includes an active particle including: a core including an alloy represented by Formula 1 PdCuaMb Formula 1 wherein M is a transition metal, 0.05≦a≦0.32, and 0
Abstract:
A composite support including: an ordered mesoporous carbon including mesopores having an average diameter of about 2 nanometers to about 8 nanometers; and silicon carbide dispersed in the ordered mesoporous carbon.