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Titolo:
Low potential electrochemical polymerization of 3-chlorothiophene in mixedelectrolytes of boron trifluoride diethyl etherate and trifluoroacetic acid
Autore:
Xu, JK; Shi, GQ; Xu, ZJ; Chen, FG; Hong, XY;
Indirizzi:
Tsing Hua Univ, Dept Chem, Beijing 100084, Peoples R China Tsing Hua UnivBeijing Peoples R China 100084 ng 100084, Peoples R China
Titolo Testata:
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
fascicolo: 1-2, volume: 514, anno: 2001,
pagine: 16 - 25
Fonte:
ISI
Lingua:
ENG
Soggetto:
ELECTRICALLY CONDUCTING POLYMERS; RAMAN-SPECTRA; POLYTHIOPHENE FILMS; SOLID-STATE; THIOPHENE; ELECTROPOLYMERIZATION; POLYPYRROLE; ELECTRODEPOSITION; POLY(THIOPHENES); IMMOBILIZATION;
Keywords:
poly(3-chlorothiophene); Raman spectroscopy; boron trifluoride diethyl etherate; trifluoroacetic acid; electrochemical polymerization;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
58
Recensione:
Indirizzi per estratti:
Indirizzo: Shi, GQ Tsing Hua Univ, Dept Chem, Beijing 100084, Peoples R China Tsing Hua Univ Beijing Peoples R China 100084 4, Peoples R China
Citazione:
J.K. Xu et al., "Low potential electrochemical polymerization of 3-chlorothiophene in mixedelectrolytes of boron trifluoride diethyl etherate and trifluoroacetic acid", J ELEC CHEM, 514(1-2), 2001, pp. 16-25

Abstract

Poly(3-chlorothiophene) (PCT) films were synthesized electrochemically by direct oxidation of 3-chlorothiophene (CT) in mixed electrolytes of boron trifluoride diethyl etherate (BFEE) and trifluroacetic acid (TFA). The oxidation potential of 3-chlorothiophene in pure BFEE was measured to be only 1.54 V versus SCE. This value is much lower than that determined in neutral medium (2.18 V vs. SCE). The addition of TFA to BFEE can further decrease the oxidation potential of the monomer. The oxidation potential of CT in the mixed electrolyte of BFEE containing 30% TFA (by volume) was found to be aslow as 1.16 V (vs. SCE). PCT films with the highest quality were obtained from the media of BFEE + 10-15% TFA and they were characterized to have about 24-32 repeat units. The doping level and conductivity of PCT films also increased significantly by using the mixed electrolytes. (C) 2001 Elsevier Science B.V. All rights reserved.

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Documento generato il 04/04/20 alle ore 14:49:22