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size dependences of both activities and stabilities in the ORR and the CO-tolerant
HOR. For this purpose, we have recently developed a nanocapsule method to prepare
monodispersed Pt alloy particles supported on CB with well-controlled composition
[Yano et al., 2007, 2008]. This method, of course, can be applied to prepare various
kind of alloys (binary, ternary, or more), which can contribute to the exploration of
highly active and stable electrocatalysts for PEFCs.
ACKNOWLEDGMENT
This work was partly supported by the fund for “Leading Project; Next Generation Fuel Cells”
of the Ministry of Education, Science, Culture, Sports, and Technology of Japan.
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