Electrodeposition of Polypyrrole Nanowires within Vertically Oriented Mesoporous Silica Template
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Polypyrrole (Ppy) nanowire has been electrochemically synthesized via vertically oriented mesoporous silica template. The mesoporous template is also electrochemically deposited on indium tin oxide coated (ITO) glass from tetraethyl orthosilicate (TEOS) and cetyltrimethylammonium bromide (CTAB) surfactant. The highly ordered silica template is demonstrated to be 100~120nm thick with the pores of 4~5 nm diameter by scanning electron microscope (SEM) and transmission electron microscope (TEM). Ppy is formed to fill pores of the silica template from pyrrole solution by electrochemical oxidation. The Ppy in Ppy/silica/ITO composite was found to exhibit reversible electrochemical activity, as characterized by cyclic voltammetry (CV).
Abstract
Polypyrrole (Ppy) nanowire has been electrochemically synthesized via vertically oriented mesoporous silica template. The mesoporous template is also electrochemically deposited on indium tin oxide coated (ITO) glass from tetraethyl orthosilicate (TEOS) and cetyltrimethylammonium bromide (CTAB) surfactant. The highly ordered silica template is demonstrated to be 100~120nm thick with the pores of 4~5 nm diameter by scanning electron microscope (SEM) and transmission electron microscope (TEM). Ppy is formed to fill pores of the silica template from pyrrole solution by electrochemical oxidation. The Ppy in Ppy/silica/ITO composite was found to exhibit reversible electrochemical activity, as characterized by cyclic voltammetry (CV).
참고문헌 (12)
- R. Liu, "MnO2", Poly(3,4-ethylenedioxythiophene)Coaxial Nanowires by One-Step Coelectrodepositionfor Electrochemical Energy Storage, 2008, pp.130, 2942~
- F. Cheng, "Fabrication ofPolypyrrole Nanowire and Nanotube Arrays", Sensors, 5, pp.245~ (2005)
- A. Walcarius, "Electrochemically assisted self-assembly of mesoporoussilica thin films", Nat. Mater, 6, pp.602~ (2007)
- A. Goux, "Oriented Mesoporous Silica FilmsObtained by Electro-Assisted Self-Assembly (EASA)", Chem. Mater, 21, pp.731~ (2009)
- A. Goux, "Prussian Blueelectrodeposition within an oriented mesoporous silicafilm: preliminary observations", J. Mater. Sci, 44, pp.6601~ (2009)
- Y. Li, "Improvement ofthe electrochemical properties via poly(3,4-ethylenedioxythiophene)oriented micro", nanorods, 2010, pp.195, 3025~
- C. J. Brinker, "Evaporation-Induced Self-Assembly: Nanostructures Made Easy", Adv.Mater, 11, pp.579~ (1999)
- P. J. Vruinsma, "Mesoporous Silica Synthesized by Solvent Evaporation:Spun Fibers and Spray-Dried Hollow Spheres", Chem.Mat, 9, pp.2507~ (1997)
- N. Raman, "Template-Based Approaches to the Preparation of Amorphous,Nanoporous Silicas", Chem. Mater, 8, pp.1682~ (1996)
- C. Brinker, "“Morphological control ofsurfactant-templated metal oxide films", Curr. Opin.Colloid Interface Sci, 11, pp.126~ (2006)
- W. Kautek, "Template electrodepositionof nanowire arrays on gold foils fabricated bypulsed-laser deposition", Electrochim. Acta, 40, pp.1461~ (1995)
- }thin films, "Anal. Chem", 1990, 1407~