A novel synthesis of (3,6-bis(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-9-(4-vinylbenzyl)-9H-carbazole), alternating polymer formation, characterization, and capacitance measurements
Yükleniyor...
Dosyalar
Tarih
2013
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this work, (3,6-bis(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-9-(4-vinylbenzyl)-9H-carbazole) (EDOTVBCz) comonomer was chemically synthesized and characterized by Fourier transform infrared (FTIR), proton nuclear magnetic resonance, and carbon nuclear magnetic resonance spectroscopy. EDOTVBCz was electrocoated on glassy carbon electrode (GCE) in various initial molar concentrations ([EDOTVBCz](0) = 1.0, 1.5, 2.0, and 3.0) in 0.1 M lithium perchlorate (LiClO4)/acetonitrile (CH3CN). P(EDOTVBCz)/GCE was characterized by cyclic voltammetry, FTIR reflectance-attenuated total reflection spectroscopy, scanning electron microscopy-energy dispersive X-ray analysis, atomic force microscopy, and electrochemical impedance spectroscopy (EIS). EIS was used to determine the capacitive behaviors of modified GCE via Nyquist, Bode magnitude, Bode phase, and admittance plots. The highest low-frequency capacitance value was obtained as C (LF) = similar to 2.35 mF cm(-2) for [EDOTVBCz](0) = 3.0 mM. Double-layer capacitance of the polymer/electrolyte system was calculated as C (dl) = similar to 2.78 mF cm(-2) for [EDOTVBCz](0) = 1.0 and 3.0 mM. The maximum phase angle was obtained as theta = similar to 76.7(o) for [EDOTVBCz](0) = 1.0, 1.5, 2.0, and 3.0 mM at the frequency of 20.6 Hz. AC impedance spectra of P(EDOTVBCz)/LiClO4/CH3CN was obtained by performing electrical equivalent circuit model of R(Q(R(CR))) with linear Kramers-Kronig test.
Açıklama
Anahtar Kelimeler
3,6-bis(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-9-(4-vinylbenzyl)-9H-carbazole), Electrochemical impedance spectroscopy, Synthesis, Equivalent circuit model, Double-layer capacitance, Carbon-Fiber Microelectrode, Electrochemical Impedance Spectroscopy, Conjugated Polymers, Solar-Cells, Polythiophene, Electrode, Electropolymerization, Polyaniline, Films, Poly(Thiophenes)
Kaynak
Journal of Solid State Electrochemistry
WoS Q Değeri
Q2
Scopus Q Değeri
Cilt
17
Sayı
9
