Modified carbon nanotube composites with high dielectric constant, low dielectric loss and large energy density

Flexible dielectric polystyrene based composites containing multi-walled carbon nanotubes (MWCNTs) were reported. The MWCNTs were coated with polypyrrole (PPy) by an inverse microemulsion polymerization. Transmission electron microscopy, X-ray photoelectron spectroscopy and Raman spectroscopy indica...

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Veröffentlicht in:	Carbon (New York) 2009-04, Vol.47 (4), p.1096-1101
Hauptverfasser:	Yang, Cheng, Lin, Yuanhua, Nan, C.W.
Format:	Artikel
Sprache:	eng
Schlagworte:	Carbon Charge Chemistry Colloidal state and disperse state Cross-disciplinary physics: materials science rheology Dielectric constant Dielectrics Electric charge Electronics Emulsions. Microemulsions. Foams Energy density Exact sciences and technology Fullerenes and related materials diamonds, graphite General and physical chemistry Materials science Physics Polymerization Specific materials
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Zusammenfassung:	Flexible dielectric polystyrene based composites containing multi-walled carbon nanotubes (MWCNTs) were reported. The MWCNTs were coated with polypyrrole (PPy) by an inverse microemulsion polymerization. Transmission electron microscopy, X-ray photoelectron spectroscopy and Raman spectroscopy indicated that the MWCNTs were coated with PPy. Our composites presented a stable high dielectric constant (∼44), rather low loss (
ISSN:	0008-6223 1873-3891
DOI:	10.1016/j.carbon.2008.12.037