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.

引用

页码：1713 / 1720

页数：8

共 23 条

[1]

[Anonymous], 1983, ADV MOLTEN SALT CHEM, DOI DOI 10.1039/B601395C

[2]

Bard A.J., 1989, ELECTROANALYTICAL CH, P181

[3] CLAY MODIFIED ELECTRODES .7. THE ELECTROCHEMICAL-BEHAVIOR OF TETRATHIAFULVALENIUM-MONTMORILLONITE MODIFIED ELECTRODES [J].