Department of Energy Science and Engineering
Electrochemistry Laboratory for Sustainable Energy(ELSE)
1. Journal Articles
Effects of Selective Polymerization Conditions on Physical Properties of Nanometer-Scale Silica/Polypyrrole Composites
- Title
- Effects of Selective Polymerization Conditions on Physical Properties of Nanometer-Scale Silica/Polypyrrole Composites
- Author(s)
- Jung, Yongju ; Kim, Seok ; Spray, Ryan L. ; Yang, Hye Jeong ; Park, Seong-Hyo ; Kim, Seokhyeon ; Lee, Hochun
- Issued Date
- 2015-12
- Citation
- Bulletin of the Korean Chemical Society, v.36, no.12, pp.2881 - 2884
- Type
- Article
- Author Keywords
- Electrical conductivity ; Polypyrrole ; Selective polymerization ; Silica
- Keywords
- Electric Conductivity ; Electrical Conductivity ; Ions ; Nano-Meter Scale ; Nanocomposites ; NANOPARTICLES ; Oxidizing Agents ; PARTICLES ; Polymerization ; Polypyrrole ; Polypyrrole (PPy) ; Polypyrroles ; Pyrrole Monomers ; Reactant Concentrations ; Selective Polymerization ; Selective Polymerizations ; Silica ; Silica Surface ; SPHERES ; SURFACE
- ISSN
- 0253-2964
- Abstract
- Nanometer-scale (approximately 70 nm) silica/polypyrrole composites were synthesized using a selective polymerization based on an in situ-generated strong oxidizing agent (NO+ ions) on the silica surface. The effects of the concentrations of reactants (pyrrole monomer and NO2- ions) and the presence of additional dopant anions (Cl- or SO2-4) on the polypyrrole (ppy) content and electric conductivity of the silica/ppy composites are examined. It was found that the ppy content in the silica/ppy composites increased with the reactant concentration in the range of 0.02-0.2 M. It is revealed that employing additional dopant anions could be a promising way to improve the electrical conductivity of the composites. © 2015 Korean Chemical Society, Seoul & Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
- Publisher
- Wiley-VCH Verlag
- Related Researcher
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Lee, Hochun
- Research Interests Lithium-ion batteries; Novel Materials for rechargeable batteries; Novel energy conversion;storage systems; Electrochemistry; 리튬이차전지; 이차전지용 신규 전극 및 전해액; 신규 에너지변환 및 저장 시스템; 전기화학
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