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|
| Type |
Poster Presentation |
| Area |
Material Chemistry |
| Room No. |
Exhibition Hall 2+3 |
| Time |
10월 19일 (목요일) 11:00~12:30 |
| Code |
MAT.P-405 |
| Subject |
Pt-Pd-Cu ternary alloy dendritic nanocrystals for enhanced electrocatalytic alcohol oxidation reactions |
| Authors |
Young Wook Lee, Sang Woo Han*
Department of Chemistry, Korea Advanced Institute of Science and Technology, Korea
|
| Abstract |
Engineering the morphology and composition of multi-metallic nanocrystals composed of noble and 3d transition metals has been of great interest due to its high potential to the development of high-performance catalytic materials for energy and sustainability. In the present work, we developed a facile aqueous approach for the formation of homogeneous ternary alloy nanocrystals with a dendritic shape, Pt-Pd-Cu nanodendrites, of which synthesis has rarely been achieved due to synthetic difficulties. Proper choice of stabilizer and fine control over the amount of stabilizer and reductant allowed the successful formation of Pt-Pd-Cu nanodendrites. The prepared ternary alloy nanodendrites exhibited considerably improved electrocatalytic performance toward methanol and ethanol oxidation reactions compared to their binary alloy counterpart, Pt-Pd nanodendrites, and commercial Pt and Pd catalysts due to synergism between their morphological and compositional characteristics. We anticipate that the present approach will be helpful to develop efficient electrocatalysis systems for practical applications. |
| E-mail |
lyw9978@kaist.ac.kr |
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120th General Meeting of the KCS