Enhanced electrocatalytic performance for methanol oxidation of Pt nanoparticles on Mn3O4-modified multi-walled carbon nanotubes

Xiulin Yang, Xueyun Wang, Guoqiang Zhang, Junpeng Zheng, Taishan Wang, Xianzong Liu, Chunying Shu, Li Jiang*, Chunru Wang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

63 Citations (Scopus)

Abstract

We report the preparation of well-dispersed Pt nanoparticles depositing on Mn3O4-modified multi-walled carbon nanotubes (Mn 3O4-MWCNTs) that can be taken as high performance catalyst in methanol electro-oxidation. Various spectrometry techniques such as FT-IR, Raman, XRD, TEM and XPS measurements were performed, revealing that the Pt nanoparticles were highly dispersed on the surface of Mn3O 4-modified MWCNTs with a narrow size distribution between 1.7 nm and 3.9 nm. Compared the Pt/MWCNT catalyst without Mn3O4 modification, the Pt/Mn3O4-MWCNT composite catalyst not only shows relative large electrochemical active surface area (EAS), high catalyzing activity toward methanol electro-oxidation, but also exhibits very high stability with apparent anti-poisoning tolerance to the incomplete oxidized species during methanol oxidation.

Original languageEnglish
Pages (from-to)11167-11175
Number of pages9
JournalInternational Journal of Hydrogen Energy
Volume37
Issue number15
DOIs
Publication statusPublished - Aug 2012
Externally publishedYes

Keywords

  • Electrocatalysis
  • Fuel cells
  • MnO
  • Multi-walled carbon nanotubes
  • Pt nanoparticles

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