Abstract
The development of an efficient method for the de-halogenation of alkyl halides is an essential step towards the elimination of these pollutants from the environment. Here we show that entrapment of an electro-catalyst in sol-gel electrodes yields efficient electrodes for this process. In this study Cu(1,4,8,11-tetra-aza-cyclotetra-decane)2+ was used as the active catalyst in the de-chlorination of CCl3CO2−. The major electro-catalytic product is oxalate while a minor product, depending on experimental conditions, is either glyoxalate or acetate. The efficiency of the electro-catalytic process depends on the nature of the precursors used to prepare the sol-gel matrix. The observed electro-catalytic current decreases when cyclic voltammetry is performed at high scan rates. This surprising result indicates that the mechanism of the electro-catalytic process is dependent on the scan rate. Plausible mechanisms at low and high scan rates are proposed.
Original language | English |
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Article number | 119225 |
Pages (from-to) | 119225 |
Number of pages | 1 |
Journal | Inorganica Chimica Acta |
Volume | 500 |
DOIs | |
State | Published - 24 Jan 2020 |
Keywords
- Cu Complex
- Electro-catalytic process
- Sol-gel matrix
All Science Journal Classification (ASJC) codes
- Physical and Theoretical Chemistry
- Inorganic Chemistry
- Materials Chemistry