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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*
  • *Corresponding author for this work
  • CAS - Changchun Institute of Applied Chemistry
  • University of Chinese Academy of Sciences

Research output: Contribution to journalArticlepeer-review

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 PtCl4 2- on the MWNTs' sidewalls. Deposition of Pt NPs on the MWNTs' sidewalls was realized by in situ chemical reduction of anionic ions PtCl4 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.

Original languageEnglish
Pages (from-to)935-939
Number of pages5
JournalTalanta
Volume79
Issue number3
DOIs
Publication statusPublished - 15 Aug 2009
Externally publishedYes

Keywords

  • Dopamine redox
  • Electrocatalysis
  • Formic acid
  • Oxygen reduction
  • PEI
  • Pt/MWNTs hybrid material

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