One-Step Preparation of Pt on Pretreated Multiwalled Carbon Nanotubes for Methanol Electrooxidation

✍ Scribed by J. Wu; F. Hu; P. K. Shen; C. M. Li; Z. Wei

• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 561 KB
• Volume: 10
• Category: Article
• ISSN: 1615-6846
• DOI: 10.1002/fuce.200900119

✦ Synopsis

Abstract

For the first time, intermittent microwave heating (IMH) is a one‐step technique applied to pretreat the multiwalled carbon nanotubes (MWCNTs) in H~2~O~2~ solution. The approach does not require washing and filtration of the sample, thus significantly reducing the loss of the material and treatment time. The IMH associated with H~2~O~2~ treatment, is optimised to fabricate efficient support for Pt electrocatalyst. Both as‐received and treated MWCNTs are used as Pt electrocatalyst supports, respectively. It demonstrates that the treated MWCNTs supported Pt has much better electrocatalytic performance than that of untreated MWCNTs supported Pt. The Pt on MWCNTs treated with an IMH irradiation mode in 10 s on and 20 s off for 5 times, shows the best performance for methanol oxidation. This work provides a novel approach to simply and economically fabricate an efficient MWCNT support at a large scale, for high performance Pt electrocatalysts.