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Lookup NU author(s): Dr Raghuram Chetty,
Professor Paul Christensen,
Professor Bernard Golding,
Emeritus Professor Keith Scott
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In situ Fourier transform infrared studies have shown that the electrochemical hydrodehalogenation (HDH) of a wide range of halogenated phenols to give the phenolate anion was observed through a common adsorbed intermediate at a palladium catalysed titanium electrode. The mechanism of the reduction may be represented as a sequence of electron additions and halide expulsions leading, via the intermediate radical, to product. The electrochemical HDH of halogenated phenols in aqueous solution was studied at ambient temperature and atmospheric pressure in a two-compartment H-cell reactor and a solid polymer electrolyte reactor, as well as with in situ Fourier transform infrared (FTIR) spectroscopy. Complete dehalogenation of 10mM halogenated phenol solutions was observed with current efficiencies up to 90% in the H-cell, whilst current efficiencies up to 50% were observed using the solid polymer electrolyte reactor. © 2004 Elsevier B.V. All rights reserved.
Author(s): Chetty R, Christensen PA, Golding BT, Scott K
Publication type: Article
Publication status: Published
Journal: Applied Catalysis A: General
ISSN (print): 0926-860X
ISSN (electronic): 1873-3875
Publisher: Elsevier BV
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