Synthesis and characterization of Cu-Pt/MWCNTs for use in electrocatalytic applications

• Published in: Particuology Vol. 9; no. 5; pp. 522 - 527
• Main Authors: Chiou, Yuh-Jing, Hsu, Hang-Jui, Lin, Hong-Ming, Liou, Wei-Jen, Liou, Huey-Wen, Wu, She-Huang, Chien, Shu-Hua
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.10.2011; Department of Materials Engineering, Tatung University, 40, Chungshan N. Rd., 3rd Sec, 104 Taipei, Taiwan, China%Institute of Chemistry, Academia Sinica, 128 Academia Road, Sec. 2, Nankang 115 Taipei, Taiwan, China
• Subjects: Catalysts; Copper; Electrocatalysis; Methanol; Methyl alcohol; Multi-walled carbon nanotubes; Nanocomposites; Nanoparticles; Nanostructure; Oxidation; Platinum; Solid solutions; 应用; 材料合成; 材料结构; 混合催化剂; 用电; 碳纳米管; 表征; 铂纳米粒子; Nanoparticles; Electrocatalysis; Multi-walled carbon nanotubes; Copper; Platinum; Methanol; Coper
• ISSN: 1674-2001; 2210-4291
• DOI: 10.1016/j.partic.2011.01.007

Improving catalyst performance by studying the preparation parameters, material structures and analysis methods is important work for catalyst researchers. In this study, Cu-Pt nanocomposites with different metal ratios were synthesized on MWCNTs using a polyol method. The structures and morphologies of the nano hybrid catalysts were analyzed by XRD and TEM. The XRD results indicate that Pt and Cu formed a bimetallic solid solution. The average diameters of the Pt and Cu-Pt nanoparticles on MWCNTs were between 3-10 nm and 5-15 nm, respectively. The electrocatalytic behavior of methanol oxidation reactions was investigated by cyclic voltammery （CV）. Cu（20%）/[Pt/MWCNTs（1：4）], which contained an optimal degree of solid solution, enhanced the methanol oxidation to the greatest degree.