tailieunhanh - Zhou et al. Nanoscale Research Letters 2011, 6:364

Zhou et al. Nanoscale Research Letters 2011, 6:364 NANO EXPRESS Open Access Electro-synthesis of novel nanostructured PEDOT films and their application as catalyst support Cuifeng Zhou1, Zongwen Liu1*, Yushan Yan2, Xusheng Du3*, Yiu-Wing Mai3 and Simon Ringer1 Abstract Poly(3,4-ethylenedioxythiophene) (PEDOT) films doped with nitric and chlorine ions have been electrochemically deposited simply by a one-step electrochemical method in an aqueous media in the absence of any surfactant. The fabricated PEDOT films were characterized by scanning electron microscopy, transmission electron microscopy, and Raman spectroscopy. The results indicate that the hierarchical structured PEDOT film doped with nitric ions displays a ‘lunar craters’ porous morphology consisting of. | Zhou et al. Nanoscale Research Letters 2011 6 364 http content 6 1 364 o Nanoscale Research Letters a SpringerOpen Journal NANO EXPRESS Open Access Electro-synthesis of novel nanostructured PEDOT films and their application as catalyst support z- 71 1 1-1 2 3 3 1 Cuifeng Zhou Zongwen Liu Yushan Yan Xusheng Du Yiu-Wing Mai and Simon Ringer Abstract Poly 3 4-ethylenedioxythiophene PEDOT films doped with nitric and chlorine ions have been electrochemically deposited simply by a one-step electrochemical method in an aqueous media in the absence of any surfactant. The fabricated PEDOT films were characterized by scanning electron microscopy transmission electron microscopy and Raman spectroscopy. The results indicate that the hierarchical structured PEDOT film doped with nitric ions displays a lunar craters porous morphology consisting of PEDOT nano-sheets with a thickness of less than 2 nm. The effect of counter ions on the electro-polymerization the electrochemistry and the morphology of the polymer film was studied. Compared with PEDOT film doped with nitric acid PEDOT film deposited in the presence of chlorine ions shows irregular morphology and less electrochemical activity. The specific nanostructure of the polymer was further studied as catalyst support for platinum nanoparticles to methanol electro-oxidation. Introduction Poly 3 4-ethylenedioxythiophene PEDOT is an important n-conjugated conducting polymer which is currently being investigated for use in many fields 1 such as antistatic and anticorrosion materials artificial muscles electrode materials in batteries super-capacitors display devices and biosensors. Although various 1D or 2D PEDOT nanomaterials such as nanofibers nanospheres nano-tubes and nanorods 2-6 have been prepared and studied there are few reports on the more complicated hierarchical structure of this functional polymer. PEDOT film is one of the main applied forms of this functional material. For example PEDOT films

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