HETEROGENEOUS AND HOMOGENEOUS ELECTRON-TRANSFER REACTIONS OF TETRATHIAFULVALENE IN AMBIENT-TEMPERATURE CHLORALUMINATE MOLTEN-SALTS

被引：13
作者：
CARTER, MT
OSTERYOUNG, A
机构：
[1] Department of Chemistry, North Carolina State University, Raleigh
[2] Department of Chemistry, The University of North Carolina Chapel Hill
来源：
JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1994年 / 141卷 / 07期
关键词：
D O I：
10.1149/1.2054992
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The electrochemistry of tetrathiafulvalene (TTF) in an ambient temperature chloroaluminate molten salt composed of 1-ethyl-3-methylimidazolium chloride mixed with AlCl3 has been examined. In both basic and acidic melts TTF is oxidized in two consecutive, one-electron steps to TTF+ and then to TTF2+. In basic melts, neutral TTF is stable and its oxidations are well-behaved on the voltammetric time scale. TTF2+ is adsorbed at a glassy carbon working electrode in basic melts. Constant current electrolysis of TTF to TTF+ at a Pt electrode in basic melt produces purple crystals which appear to be electronically conductive. In acidic melts HCl, present as an impurity, oxidizes TTF to TTF+. Diffusion coefficient measurements by pulse voltammetry suggest that TTF forms a slowly diffusing AlCl3 adduct in acidic melts.
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页码：1713 / 1720
页数：8
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