Mass transfer in AC electrolysis part II: Experimental study on sinusoidal current | Zendy

Cheng C. Y. | Zendy; Chin DT. | Zendy

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Mass transfer in AC electrolysis part II: Experimental study on sinusoidal current

Author(s) -

Cheng C. Y.,

Chin DT.

Publication year - 1984

Publication title -

aiche journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.958

H-Index - 167

eISSN - 1547-5905

pISSN - 0001-1541

DOI - 10.1002/aic.690300510

Subject(s) - alternating current , current density , current (fluid) , limiting current , laminar flow , dimensionless quantity , chemistry , electrode , direct current , electrolyte , electrolytic capacitor , mechanics , mass transfer , electrolysis , analytical chemistry (journal) , thermodynamics , physics , electrochemistry , power (physics) , quantum mechanics , chromatography

An experimental study has been made for laminar mass transfer to a rotating disk and a rotating hemispherical electrode when sinusoidal alternating current (AC) together with direct current (DC) are flowing across the electrode/electrolyte interface. A resistor‐capacitor circuit was used to measure the phase shift between the applied AC and the resulting periodical concentration overpotential. The limiting AC current density corresponding to a zero instantaneous surface concentration was determined as a function of AC frequency and DC current density. The experimental data agreed with the theoretical calculations in a regime of a dimensionless AC frequency K = (ω/Ω) Sc 1/3 greater than 1 and less than 200.

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