In this study, the ternary catalyst, PdPtAu, was synthesized for the electrochemical formic acid oxidation reaction. The catalyst was prepared through the co-precipitation using NaBH₄ as a reducing agent. The status of catalyst formation and the extent of average particle size were known by X-ray diffraction (XRD) and transmission electron microscopy (TEM). For this work, we accomplished electrochemical analyses for the PdPtAu, Pd, Pt, and Au, which defines each activity for formic acid oxidation. In durability tests, half cell and single cell tests show even better stability than the Pd and Au catalysts. Stripping tests were carried out after durability tests. Based on results, the ternary PdPtAu catalyst is less deactivated than the Pd, while the catalyst shows higher activity than the Pt. The PdPtAu catalyst represents high resistance for poisoning as compared to the Pd. We demonstrate the stability of the PdPtAu catalyst in the 3-electrode electrochemical system and single cell tests. After 2 h-operation, the deactivation degree of PdPtAu shows 27% loss of the initial current density, while Pd and Pt catalysts lost 39% and 57% of them, respectively.

在本研究中，合成了用于电化学甲酸氧化反应的三元催化剂 PdPtAu。催化剂通过使用 NaBH ₄共沉淀制备作为还原剂。通过 X 射线衍射 (XRD) 和透射电子显微镜 (TEM) 了解催化剂形成的状态和平均粒度的程度。在这项工作中，我们完成了 PdPtAu、Pd、Pt 和 Au 的电化学分析，这些分析定义了甲酸氧化的每种活性。在耐久性测试中，半电池和单电池测试显示出比 Pd 和 Au 催化剂更好的稳定性。耐久试验后进​​行剥离试验。根据结果​​，三元 PdPtAu 催化剂的失活程度低于 Pd，而该催化剂的活性高于 Pt。与 Pd 相比，PdPtAu 催化剂表现出对中毒的高耐受性。我们证明了 PdPtAu 催化剂在 3 电极电化学系统和单电池测试中的稳定性。经过 2 小时的手术，