Abstract

An airtight thin-layer reflection FT-IR microspectroelectrochemical cell suitable for the study of both aqueous and nonaqueous electrochemical systems is described. Due to its design, the cell can be easily assembled using disk microelectrodes. This variable-thickness cell can be used for the voltammetric study of both aqueous and nonaqueous systems under semi-infinite diffusion and thin-layer conditions. Dichloromethane solutions of ferrocene were used to test the in situ FT-IR microspectroelectrochemical performance of the cell. The cyclic voltammetric behavior of an oxygen- and water-free CH(2)Cl(2) solution of Ru(3)(CO)(12), under semi-infinite diffusion conditions, provides evidence of the airtightness of this cell.

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