Self-Assembled Nanorod Structures on Nanofibers for Textile Electrochemical Capacitor Electrodes with Intrinsic Tactile Sensing Capabilities
| Autor: | Nazanin Khalili, Hani E. Naguib, HaoTian H. Shi, Taylor Morrison |
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| Rok vydání: | 2018 |
| Předmět: |
Conductive polymer
Materials science Polyacrylonitrile 02 engineering and technology Electrolyte 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Piezoresistive effect 0104 chemical sciences chemistry.chemical_compound chemistry Nanofiber Electrode Polyaniline General Materials Science Nanorod Composite material 0210 nano-technology |
| Zdroj: | ACS Applied Materials & Interfaces. 10:19037-19046 |
| ISSN: | 1944-8252 1944-8244 |
| Popis: | A novel polyaniline nanorod (PAniNR) three-dimensional structure was successfully grown on flexible polyacrylonitrile (PAN) nanofiber substrate as the electrode material for electrochemical capacitors (ECs), constructed via self-stabilized dispersion polymerization process. The electrode offered desired mechanical properties such as flexibility and bendability, whereas it maintained optimal electrochemical characteristics. The electrode and the assembled EC cell also achieved intrinsic piezoresistive sensing properties, leading to real-time monitoring of excess mechanical pressure and bending during cell operations. The PAniNR@PAN electrodes show an average diameter of 173.6 nm, with the PAniNR growth of 50.7 nm in length. Compared to the electrodes made from pristine PAni, the gravimetric capacitance increased by 39.8% to 629.6 F/g with aqueous acidic electrolyte. The electrode and the assembled EC cell with gel electrolyte were responsive to tensile, compressive, and bending stresses with a sensitivity of 0.95 MPa-1. |
| Databáze: | OpenAIRE |
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