Accession Number : ADA296194

Title :   The Hydrophobic Electrode.

Descriptive Note : Technical rept.,

Corporate Author : GEORGETOWN UNIV WASHINGTON DC DEPT OF CHEMISTRY

Personal Author(s) : Kurtyka, B. ; De Levie, R.

PDF Url : ADA296194

Report Date : 26 JUN 1995

Pagination or Media Count : 19

Abstract : Condensed adsorbate monolayers (compact films) formed by either salts or neutral adsorbates can provide a hydrophobic microenvironment around the electrode, even when this electrode is immersed in an aqueous solution. In such a microenvironment, reaction mechanisms can be altered. Specifically, the absence of interfacial water may prevent protonation of anion radicals formed by electron transfer, so that mechanisms involving dimerization may be favored. Condensed adsorbate films then allow the use of aqueous solvents for electrochemical syntheses where, otherwise, more expensive and environmentally more troublesome aprotic solvents might be needed. The precise reaction mechanism depends on the adsorbate used, thus providing the experimentalist with a further tool to steer the reaction pathway. (AN)

Descriptors :   *ELECTROCHEMISTRY, *HYDROPHOBIC PROPERTIES, *REDUCTION(CHEMISTRY), *CONDENSATION REACTIONS, REACTION KINETICS, SOLUTIONS(MIXTURES), WATER, SYNTHESIS(CHEMISTRY), ELECTRODES, MERCURY, SOLVENTS, ELECTRIC CURRENT, ELECTRON TRANSFER, NITRILES, ANIONS, DIMERS, CAPACITANCE, ADSORBATES, SODIUM COMPOUNDS.

Subject Categories : Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE