High Performance Carbon-Supported Core@Shell PdSn@Pt Electrocatalysts for Oxygen Reduction Reaction

✍ Scribed by W. Zhang; R. Wang; H. Wang; Z. Lei

• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 694 KB
• Volume: 10
• Category: Article
• ISSN: 1615-6846
• DOI: 10.1002/fuce.200900184

✦ Synopsis

Abstract

In this report, a low‐cost and high performance PdSn@Pt/C catalyst with core–shell structure is prepared by two‐stage route. X‐ray diffraction (XRD) and transmission electron microscopy (TEM) examinations show that the composite catalyst particles distribution is quite homogeneous and has a high surface area and the PdSn@Pt/C catalyst has an average diameter of ca. 5.6 nm. The oxygen reduction reaction (ORR) activity of PdSn@Pt/C was higher than commercial Pt/C catalyst. Catalytic activity is studied by cyclic voltammetry. High electrocatalytic activities could be attributed to the synergistic effect between Pt and PdSn.