The nature of the interaction between polyaniline and 2,5-dimercapto-1,3,4-thiadiazole in electrochemical redox processes


Autoria(s): Wang P
Data(s)

2002

Resumo

The interaction between polyaniline (PAn) and 2,5-dimercapto-1,3,4-thiadiazole (DMcT) was investigated by means of cyclic voltammetry and UV-visible spectroscopy. The results show that the polymerization-depolymerization reaction of DMcT or its dilithium salt Li(2)DMcT is a kinetically quasi-reversible process. PAn exhibits very weak electrochemical activity in neutral propylene carbonate. After doping with protonic acid, such as hydrochloric acid or maleic acid etc., however, it shows an extensively enhanced electroactivity. For the complex system, PAn-DMcT or PAn-Li(2)DMcT, polyaniline has no catalytic activity for the electrochemical polymerization-depolymerization reaction of DMcT or DMcT(2-). Instead, the enhancement of the electrochemical redox activity of PAn-DMcT system compared with that of PAn, DMcT, Li(2)DMcT, and PAn-Li(2)DMcT comes from the protonic doping of PAn by DMcT.

Identificador

http://ir.ciac.jl.cn/handle/322003/18393

http://www.irgrid.ac.cn/handle/1471x/153905

Idioma(s)

英语

Fonte

Wang P.The nature of the interaction between polyaniline and 2,5-dimercapto-1,3,4-thiadiazole in electrochemical redox processes,JOURNAL OF THE ELECTROCHEMICAL SOCIETY,2002,149(9):A1171-A1174

Palavras-Chave #HIGH-ENERGY DENSITY #ALL-SOLID-STATE #POLYMERIZATION ELECTRODES #LITHIUM BATTERIES #THIN-FILM #ELECTROLYTES #OXIDATION
Tipo

期刊论文