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Journal Article
Three-Dimensional Interstitial Nanovoid of Nanoparticulate Pt Film Electroplated from Reverse Micelle Solution
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- Authors
- Se Jin Park, Sun Young Lee, Han Kil Boo, Hyun-Mi Kim, Ki-Bum Kim, Hee Chan Kim, Youn Joo Song, Taek Dong Chung
- Issue Date
- 2007-04
- Citation
- Chemistry of Materials, v.19, no.14, pp.3373-3375
- ISSN
- 0897-4756
- Publisher
- American Chemical Society (ACS)
- Language
- English
- Type
- Journal Article
- Abstract
- The fabrication of three-dimensional (3D) nanoporous Pt film was investigated via electrochemical deposition in the reverse micelle (L 2) solution of a nonionic surfactant. Mixture of Triton X-100 (50 wt %), 0.3 M NaCl aqueous solution, and hexachloroplatinic acid was used for electroplating nanoparticulate Pt film. Pt was electrochemically deposited on a Au substrate electrode by applying -0.2 V vs Ag/AgCl at 40°C. The surface roughness and morphology of the L2-ePt was determined by cyclic voltammogram and transmission electron microscopy (TEM) respectively. It was observed that the 3D nanoporous structure showed high roughness factor due to excessive charge passed during the electroplating. Result shows that the 3D nanoporous structure exhibit electrochemical behavior and selectively enhances the amperometric signals.
- KSP Keywords
- Au substrate, Charge passed, Cyclic voltammogram, Electrochemical behaviors, Electrochemical deposition(ED), Hexachloroplatinic acid, NaCl aqueous solution, Nanoporous Pt, Nonionic surfactants, Pt film, Reverse micelle solution