Pd-loaded carbon felt as the cathode for selective dechlorination of 2,4-dichlorophenoxyacetic acid in aqueous solution

Journal Article · Sun Nov 01 00:00:00 EST 1998 · Journal of the Electrochemical Society

DOI:https://doi.org/10.1149/1.1838883· OSTI ID:289404

Tsyganok, A I; Yamanaka, Ichiro; Otsuka, Kiyoshi ^[1]

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1. Tokyo Inst. of Tech. (Japan). Dept. of Chemical Engineering

Electrocatalytic reductive dehalogenation of 2,4-dichlorophenoxyacetic acid (2,4-D) to phenoxyacetic acid in aqueous solution containing MeOH, trifluoroacetic acid, and tetraalkylammonium salt was studied. A Teflon-made two-compartment flow-through cell with a permeable carbon felt cathode and a platinum foil anode was employed. Several noble metals were tested as electrocatalysts. Palladium-loaded carbon felt was found to be the most suitable significantly enhanced its electrocatalytic activity toward 2,4-D dechlorination. The reaction was hypothesized to proceed at carbon-palladium interface areas through 4-chlorine cleavage to form 2-chlorophenoxyacetic acid as the main reaction intermediate.

• Sponsoring Organization: USDOE
• OSTI ID: 289404
• Journal Information: Journal of the Electrochemical Society, Vol. 145, Issue 11; Other Information: PBD: Nov 1998
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
54 ENVIRONMENTAL SCIENCES
ORGANIC CHLORINE COMPOUNDS
ORGANIC ACIDS
DECHLORINATION
PALLADIUM
CARBON
CATHODES
ELECTROCATALYSTS
ELECTROLYSIS
WASTE PROCESSING