Synthesis and characterization of Cu@Pt/C core-shell structured catalysts for proton exchange membrane fuel cell

✍ Scribed by Hong Zhu; Xingwang Li; Fanghui Wang

• Publisher: Elsevier Science
• Year: 2011
• Tongue: English
• Weight: 601 KB
• Volume: 36
• Category: Article
• ISSN: 0360-3199
• DOI: 10.1016/j.ijhydene.2011.04.224

✦ Synopsis

A Cu@Pt/C catalyst was synthesized by a two-step reduction method using Vulcan XC-72R as the supporting material. Physical and electrochemical techniques were applied to investigate the structure and performance of the catalyst. X-ray diffraction (XRD) and transmission electron microscopy (TEM) examinations showed that the catalyst has a coreshell structure, the distribution of the catalyst particles is quite uniform, and the particle size ranges from 5 to 6 nm. Cyclic voltammetry (CV) and rotating disk electrode (RDE) tests confirmed the high performance of the Cu@Pt/C catalyst with the atom ratio Cu: Pt of 2.73:

1, making it a promising low-Pt catalyst for proton exchange membrane fuel cell (PEMFC).