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Thionine-interlinked multi-walled carbon nanotube/gold nanoparticle composites |
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| Authors: | Zhijuan Wang Meiye Li Junhua Yuan Li Niu Ari Ivaska |
| Affiliation: | a State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Graduate University of the Chinese Academy of Sciences, Chinese Academy of Sciences, Changchun 130022, PR China b Laboratory of Analytical Chemistry, Process Chemistry Centre, Åbo Akademi University, Biskopsgatan 8, FI-20500 Åbo-Turku, Finland c National Analytical Research Center of Electrochemistry and Spectroscopy, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China |
| Abstract: | Multi-walled carbon nanotube (MWCNT)/thionine/gold nanoparticle composites were prepared by binding gold nanoparticles to the surfaces of thionine-coated carbon nanotubes. TEM images show gold nanoparticles distributed uniformly on nanotube walls and ends. UV-Vis, Raman, FT-IR, and zeta potential measurements were used to examine the properties of the resulting products. The composites demonstrate significant electrocatalytic activity for oxygen reduction. Although only gold nanoparticles were investigated here, the method could be easily extended to attach other metallic nanoparticles to the sidewalls of carbon nanotubes. |
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