| 초록 |
Noble metal-based multimetallic systems have been an important part of research in electrocatalysis due to their intrinsically high activity. However, novel approaches are required to develop the multimetallic nanocatalysts as the demands for higher catalytic performance increase. Herein, we propose a rational design of core-shell nanoparticles, which exhibit improved performances compared to pure Pd catalysts toward the electrocatalytic reduction of nitrous oxide. Computational study expected that the catalytic activity of Pd shell can be optimized by the combination with selection of proper core metal and control of Pd shell thickness. Based on the findings, Au@Pd nanoparticles with optimal shell thickness were synthesized, and the catalysts showed excellent catalytic activity for electrocatalytic reduction of nitrous oxide. Moreover, long-term stability test reveals that the core-shell catalysts possess stability superior to pure Pd/C counterpart. |
