Electroreduction of Halogenated Organic Compounds



The electroreductive cleavage of the carbon–halogen bond in halogenated organic compounds has been extensively studied for more than 70 years, since it is prodromal to a large variety of synthetic applications in organic electrochemistry. Over the years the research interest have progressively included the environmental applications, since several organic halocompounds are known to have (or have had) a serious environmental impact because of their (present or past) wide use as cleaning agents, herbicides, cryogenic fluids, reagents (e.g. allyl and vinyl monomers) for large production materials, etc. Recent studies have also demonstrated the wide spread out- and in-door-presence of volatile organic halides, although at low level, in connexion with residential and non-residential (e.g. stores, restaurants and transportation) activities. In this context, the detoxification of emissions to air, water and land by the selective removal of the halogen group represents a valid treatment route, which, although not leading to the complete mineralization of the pollutants, produces less harmful streams to be easily treated by electrochemical or conventional techniques. The electroreduction process is analysed and discussed in terms of electrode material, reaction medium, cell design and operation, and of substrate classification.


Glassy Carbon Current Efficiency Hydrogen Evolution Reaction Solid Polymer Electrolyte Room Temperature Ionic Liquid 
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The financial support of the MUR-Università degli Studi di Milano (FIRST) is gratefully acknowledged.


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Authors and Affiliations

  1. 1.Dipartimento di Chimica Fisica ed ElettrochimicaUniversità degli Studi di MilanoMilanItaly

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