Publication

Current efficiency losses in indirect electrochemical processing

Christos Comninellis
1985
Journal Articles

Abstract

The loss of current efficiency in the indirect 2-stage electrochem. process using the Mn2+/Mn3+ system is due to the oxidn. of orgs. present in the recycled electrolyte. There is no evidence of electrode poisoning under the exptl. conditions studied (88% H2SO4; Pt anode, 85 Deg). [on SciFinder (R)]

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Christos Comninellis
1985
Journal Articles

Abstract

Official source

Related concepts (32)

Faraday efficiency

In electrochemistry, Faraday efficiency (also called faradaic efficiency, faradaic yield, coulombic efficiency or current efficiency) describes the efficiency with which charge (electrons) is transferred in a system facilitating an electrochemical reaction. The word "Faraday" in this term has two interrelated aspects: first, the historic unit for charge is the faraday (F), but has since been replaced by the coulomb (C); and secondly, the related Faraday's constant (F) correlates charge with moles of matter and electrons (amount of substance).

Reference electrode

A reference electrode is an electrode that has a stable and well-known electrode potential. The overall chemical reaction taking place in a cell is made up of two independent half-reactions, which describe chemical changes at the two electrodes. To focus on the reaction at the working electrode, the reference electrode is standardized with constant (buffered or saturated) concentrations of each participant of the redox reaction. There are many ways reference electrodes are used.

Standard hydrogen electrode

In electrochemistry, the standard hydrogen electrode (abbreviated SHE), is a redox electrode which forms the basis of the thermodynamic scale of oxidation-reduction potentials. Its absolute electrode potential is estimated to be 4.44 ± 0.02 V at 25 °C, but to form a basis for comparison with all other electrochemical reactions, hydrogen's standard electrode potential (E°) is declared to be zero volts at any temperature. Potentials of all other electrodes are compared with that of the standard hydrogen electrode at the same temperature.

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Current efficiency losses in indirect electrochemical processing

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