Fabrication of Ag/polypyrrole coaxial nanocables through common ions adsorption effect |
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| Affiliation: | 1. Department of Physics and Measurements, Faculty of Chemical Engineering, University of Chemistry and Technology, Prague, 166 28 Prague 6, Czech Republic;2. Faculty of Mathematics and Physics, Charles University, 180 00 Prague 8, Czech Republic;3. Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, 162 06 Prague 6, Czech Republic;4. Department of Chemical Engineering, Faculty of Chemical Engineering, University of Chemistry and Technology, Prague, 166 28 Prague 6, Czech Republic;1. Academic Department of Engineering, Federal University of Technology – Paraná, Francisco Beltrão, PR, Brazil;2. Faculty of Administration and Business of Sergipe, Aracaju, SE, Brazil;3. Department of Chemical Engineering, Polytechnic Center, Federal University of Paraná, Curitiba, PR, Brazil;4. Department of Chemical Engineering and Food Engineering, Federal University of Santa Catarina, Florianópolis, SC, Brazil;1. School of Life Sciences, State Key Laboratory of Coordination Chemistry and Collaborative Innovation Center of Chemistry for Life Sciences, Institute of Chemistry and BioMedical Sciences, Nanjing University, Nanjing, 210093, PR China;2. School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430073, PR China;3. Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology & Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, PR China;1. Centre for Doctoral Training in Micro- and Nano Materials and Technologies, University of Surrey, GU2 7XH Guildford, United kingdom;2. Department of Physics, University of Surrey, GU2 7XH Guildford, United kingdom;3. Advanced Technology Institute, University of Surrey, GU2 7XH Guildford, United kingdom;4. M-Solv Ltd., Unit 8 Oxonian Park, Langford Locks, Kidlington, OX5 1FP Oxford, United kingdom;5. Department of Physics, University of Sussex, BN1 9RH Brighton, United Kingdom;1. School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea;2. Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Republic of Korea;3. School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea;4. BASF Electronic Materials R&D Center Asia, Suwon 16419, Republic of Korea |
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| Abstract: | According to the common ions adsorption effect, Ag+ ions will be adsorbed onto the closest surface of silver nanowires after being immersed in AgNO3 solution. This makes the surface of silver nanowires become the active sites to oxidize pyrrole monomer to form PPy sheath without adding other oxidizing agent. The results of FT-IR and UV–vis spectra show the formation of PPy chain when pyrrole monomer was added to the reaction mixture containing the disposed silver nanowires. TEM images further prove that the Ag/polypyrrole (PPy) coaxial nanocables have been fabricated. The thickness of PPy sheath can be controlled by adjusting the concentration of AgNO3 aqueous solution, which used to dispose silver nanowires. To some extent, the thickness of PPy layer would increase with the increasing of the concentration of AgNO3 solution. After the adsorbed Ag+ ions on the surface of silver nanowires reach to the saturation, the thickness of PPy layer would not change greatly with continuously increasing of AgNO3 concentration. |
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