Among the various fuel cell electrocatalysts studied for the cathodic oxygen reduction reaction and anodic fuel oxidation reaction, platinum-based materials have attracted much attention over the past decade because of their high activity for both reactions. However, Pt-based catalysts suffer from several problems, such as their high cost, low abundance, and low long-term stability. Bimetallic Pt-based nanostructures with a core–shell structure have been considered as candidate cathode catalysts for polymer electrolyte fuel cells. In this study, a Pt/Pd/C catalyst was successfully synthesized by the hydrogen-sacrificial protection method to improve the performance of a membrane electrode assembly. Furthermore, on the basis of electrochemical spectroscopic findings, it was shown that control of the surface structure is an effective strategy to improve the cell performance of the Pt/Pd/C catalyst.

在研究用于阴极氧还原反应和阳极燃料氧化反应的各种燃料电池电催化剂中，铂基材料在过去十年中因其对两种反应均具有高活性而备受关注。然而，基于Pt的催化剂存在一些问题，例如它们的高成本，低丰度和低长期稳定性。具有核心的双金属铂基纳米结构–壳结构已被认为是聚合物电解质燃料电池的候选阴极催化剂。在这项研究中，通过氢牺牲保护方法成功地合成了Pt / Pd / C催化剂，以改善膜电极组件的性能。此外，基于电化学光谱学发现，表明控制表面结构是提高Pt / Pd / C催化剂的电池性能的有效策略。