Abstract
A new method to electro-deposit platinum nanoparticles on the surface of multi-walled carbon nanotubes (MWNTs) functionalized with 4-mercaptobenzene has been described. X-ray photoelectron spectroscopy results reveal that 4-mercaptobenzene was attached to the surface of MWNTs. Transmission electron microscope and X-ray diffraction analysis confirm that platinum nanoparticles were highly dispersed on the surface of MWNTs, and the average size of the platinum particle is 4.2 nm. The electrocatalytic properties of the Pt/MWNT composite electrode for methanol oxidation were investigated by cyclic voltammetry, and the results show that the fabricated composites exhibit high catalytic activity and good long-term stability. The study provides a feasible approach to fabricate Pt/MWNT composite electrode for direct methanol fuel cell.
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Acknowledgments
We are grateful for the financial support from the National Natural Science Foundation of China (NSFC 50564006), Science Foundation of Yunan Province, Department of Education of China (07Z10736), and the Foundation of Kunming University of Science and Technology (14118023).
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Shi, J., Li, XS., Hu, YQ. et al. Electro-deposition of platinum nanoparticles on 4-mercaptobenzene-functionalized multi-walled carbon nanotubes. J Solid State Electrochem 12, 1555–1559 (2008). https://doi.org/10.1007/s10008-008-0507-5
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DOI: https://doi.org/10.1007/s10008-008-0507-5