Publication

Electrochemical incineration of chloranilic acid using Ti/IrO2, Pb/PbO2 and Si/BDD electrodes

Christos Comninellis
2004
Journal Articles

Abstract

The electrochem. oxidn. of chloranilic acid (CAA) was studied in acidic media at Pb/PbO2, B-doped diamond (Si/BDD) and Ti/IrO2 electrodes by bulk electrolysis expts. under galvanostatic control. The obtained results have clearly shown that the electrode material is an important parameter for the optimization of such processes, deciding of their mechanism and of the oxidn. products. The oxidn. of CAA generates several intermediates eventually leading to its complete mineralization. Different current efficiencies were obtained at Pb/PbO2 and BDD, depending on the applied c.d. at 6.3-50 mA cm-2. Also the effect of the temp. on Pb/PbO2 and BDD electrodes was studied. UV spectrometric measurements were carried out at all anodic materials, with applied c.d. of 25 and 50 mA cm-2. These results showed a faster CAA elimination at the BDD electrode. Finally, a mechanism for the electrochem. oxidn. of CAA is proposed according to the results obtained with the HPLC technique. [on SciFinder (R)]

Official source

https://infoscience.epfl.ch/entities/publication/c7d8f554-45f7-4a98-9446-16a55bf88a58

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Christos Comninellis
2004
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/c7d8f554-45f7-4a98-9446-16a55bf88a58

About this result

Related concepts (32)

Electrode

An electrode is an electrical conductor used to make contact with a nonmetallic part of a circuit (e.g. a semiconductor, an electrolyte, a vacuum or air). Electrodes are essential parts of batteries that can consist of a variety of materials depending on the type of battery. The electrophore, invented by Johan Wilcke, was an early version of an electrode used to study static electricity. Electrodes are an essential part of any battery. The first electrochemical battery made was devised by Alessandro Volta and was aptly named the Voltaic cell.

Working electrode

In electrochemistry, the working electrode is the electrode in an electrochemical system on which the reaction of interest is occurring. The working electrode is often used in conjunction with an auxiliary electrode, and a reference electrode in a three-electrode system. Depending on whether the reaction on the electrode is a reduction or an oxidation, the working electrode is called cathodic or anodic, respectively.

Anode

An anode is an electrode of a polarized electrical device through which conventional current enters the device. This contrasts with a cathode, an electrode of the device through which conventional current leaves the device. A common mnemonic is ACID, for "anode current into device". The direction of conventional current (the flow of positive charges) in a circuit is opposite to the direction of electron flow, so (negatively charged) electrons flow out the anode of a galvanic cell, into an outside or external circuit connected to the cell.

Related publications (8)

Electrochemical incineration of chloranilic acid using Ti/IrO2, Pb/PbO2 and Si/BDD electrodes

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