Carbon nanotube/platinum nanoparticle nanocomposites: preparation, characterization and application in electrooxidation of alcohols

Quimica nova

Kalinke, Adir H.¹  Zarbin, Aldo J. G.¹ 

[1] Universidade Federal do Paraná, Curitiba, Brasil

关键词: carbon nanotubes;    platinum nanoparticles;    nanocomposites.;   

DOI  :  10.5935/0100-4042.20140202

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The synthesis andcharacterization of different platinum nanoparticle/carbon nanotube nanocompositesamples are described along with the application of these nanocomposites aselectrocatalysts for alcohol oxidation. Samples were prepared by a biphasicsystem in which platinum nanoparticles (Pt-NPs) are synthesized in situin contact with a carbon nanotube (CNT) dispersion. Variables including platinumprecursor/CNT ratio, previous chemical treatment of carbon nanotubes, and presenceor absence of a capping agent were evaluated and correlated with the characteristicof the synthesized materials. Samples were characterized by Raman spectroscopy,X-ray diffraction, thermogravimetric analysis and transmission electron microscopy.Glassy carbon electrodes were modified by the nanocomposite samples and evaluatedas electrocatalysts for alcohol oxidation. Current densities of 56.1 and 79.8/104.7mA cm-2 were determined for the oxidation of methanol and ethanol,respectively.

【 授权许可】

CC BY