In situ PEI and formic acid directed formation of Pt NPs/MWNTs hybrid material with excellent electrocatalytic activity

Jing Li; Wen Yang; Hui Zhu; Xiaolei Wang; Fan Yang; Bailin Zhang; Xiurong Yang

doi:10.1016/j.talanta.2009.05.029

In situ PEI and formic acid directed formation of Pt NPs/MWNTs hybrid material with excellent electrocatalytic activity

Talanta. 2009 Aug 15;79(3):935-9. doi: 10.1016/j.talanta.2009.05.029. Epub 2009 May 27.

Authors

Jing Li¹, Wen Yang, Hui Zhu, Xiaolei Wang, Fan Yang, Bailin Zhang, Xiurong Yang

Affiliation

¹ State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China.

PMID: 19576467
DOI: 10.1016/j.talanta.2009.05.029

Abstract

A hybrid material based on Pt nanoparticles (Pt NPs) and multi-walled carbon nanotubes (MWNTs) was fabricated with the assistance of PEI and formic acid. The cationic polyelectrolyte PEI not only favored the homogenous dispersion of carbon nanotubes (CNTs) in water, but also provided sites for the adsorption of anionic ions PtCl(4)(2-) on the MWNTs' sidewalls. Deposition of Pt NPs on the MWNTs' sidewalls was realized by in situ chemical reduction of anionic ions PtCl(4)(2-) with formic acid. The hybrid material was characterized with TEM, XRD and XPS. Its excellent electrocatalytic activity towards both oxygen reduction in acid media and dopamine redox was also discussed.

Publication types

Research Support, Non-U.S. Gov't