|author||J. Park, M. K. Kabiraz, H. Kwon, S. Park, H. Baik, S.-I. Choi*, K. Lee*|
|journal||ACS Nano, 2017, 11, 10844.|
Pt-based alloy nanoframes have shown a great potential as electrocatalysts toward oxygen reduction reaction (ORR) in fuel cells. However, the intrinsically infirm nanoframes could be severely deformed during extended electro-cyclings, which eventually leads to the loss of the initial catalytic activity. Therefore, the structurally robust nanoframe is a worthy synthetic target. Furthermore, ternary alloy phase electrocatalysts offer more opportunities in optimizing the stability and activity than binary alloy ones. Herein, we report a robust PtCuNi ternary nanoframe, structurally fortified with inner-lying PtCu dendrite, which shows highly active and stable catalytic performance toward ORR. Remarkably, the PtCu@PtCuNi catalyst exhibited 11 and 16 times higher mass and specific activities than commercial Pt/C.
« Prev Lanthanide Metal-Assisted Synthesis of Rhombic Dodecahedral M...Lanthanide Metal-Assisted Synthesis of Rhombic Dodecahedral M... 2017.10.22by 〈
Iridium-based multimetallic nanoframe@nanoframe structure: An... Next »Iridium-based multimetallic nanoframe@nanoframe structure: An... 2017.06.13by 〉
Designed by sketchbooks.co.kr / sketchbook5 board skin