Combined effect of carbon nanotubes and polypyrrole on the electrical properties of cellulose-nanopaper
| Autor: | Fabiola Vilaseca, M. Àngels Pèlach, Kim Ngun Bun, José A. Méndez, Makara Lay |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Polymers and Plastics 02 engineering and technology Carbon nanotube Conductivity 010402 general chemistry 021001 nanoscience & nanotechnology Polypyrrole 01 natural sciences 0104 chemical sciences law.invention chemistry.chemical_compound chemistry law Nanofiber Ultimate tensile strength In situ polymerization Cellulose Composite material 0210 nano-technology Ternary operation |
| Zdroj: | Cellulose. 23:3925-3937 |
| ISSN: | 1572-882X 0969-0239 |
| DOI: | 10.1007/s10570-016-1060-5 |
| Popis: | In the present study, 2,2,6,6,-tetramethylpiperidine-1-oxyl (TEMPO)-oxidized cellulose nanofibers (CNF) were combined with multi-walled carbon nanotubes (MWCNTs) and with hybrid MWCNT/polypyrrole to produce a variety of binary and ternary formulations of conductive nanopapers. By following a simple mixing/sonication/filtering process, a homogeneous and well-distributed CNF-MWCNT nanostructure was formed, resulting in a nanopaper of strong mechanical properties (141 MPa tensile strength and 9.41 GPa Young’s modulus) and good electrical conductivity (0.78 S cm−1), for the formulation with 50 wt% of MWCNT. The subsequent in situ polymerization of pyrrole in CNF-MWCNT mixtures produced ternary multiphase CNF-MWCNT-PPy nanopapers with much improved electrical conductivity (2.41 S cm−1) and electrochemical properties (113 F g−1 specific capacitance), even using little amounts of MWCNTs. With these materials, improved hybrid capacitors can be designed. The article presents a trend for the application of cellulose nanofibers in the field of green and flexible electronics. |
| Databáze: | OpenAIRE |
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