Abstract

The chemically synthesized colloidal gamma-Fe2O3 and FePt nanoparticles (NPs), with the diameter of approximately 10 nm and approximately 4 nm, respectively, adsorbed and assembled on the surface of carbon nanotubes (CNTs) by dip-coating process, through van der Waals interaction between NP and CNT. Repeating the steps of dip-coating and removing the surfactants from NPs significantly increased the amount of NPs as forming multilayers on the CNT. In addition, the electrochemical activities of FePt/CNTs for methanol oxidation were investigated for the potential application as catalysts of direct methanol fuel cells.

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Publisher Full Text

Authors

Hu Q, Lee OH, Lim YS, Kim YS, Shin JK, Baeck SH, Lee HH, Kim HM, Kim KB, Yoon TS

Institution

Department of Nano Science and Engineering, Myongji University, Yongin, Gyeonggi-do 449-728, Korea.

Source

Journal of nanoscience and nanotechnology 12:2 2012 Feb pg 1709-12

Pub Type(s)

Journal Article

Language

eng

PubMed ID

22630035