The modulated flow at a rotating hemispherical electrode

Authors
Barcia, OE Lamego, LSR Mattos, OR Tribollet, B
Citation
Oe. Barcia et al., The modulated flow at a rotating hemispherical electrode, J ELCHEM SO, 148(1), 2001, pp. C1-C9
Citations number
17
Categorie Soggetti
Physical Chemistry/Chemical Physics","Material Science & Engineering
Journal title
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
ISSN journal
00134651 → ACNP
Volume
148
Issue
1
Year of publication
2001
Pages
C1 - C9
Database
ISI
SICI code
0013-4651(200101)148:1<C1:TMFAAR>2.0.ZU;2-3
Abstract
The frequency response or the limiting current to a sinusoidal speed modula tion at a rotating hemispherical electrode (RHSE) was calculated by using a series development of the colatitude theta with ten terms. The unsteady hy drodynamic problem was solved first and then the unsteady mass transport pr oblem was considered. The theoretical expressions were experimentally confi rmed in potentiostatic regulation at limiting current over a wide frequency range (10(-2) < p < 2) for the reduction of Fe(CN63- to Fe(CN)(6)(4-) 2 M NaOH solution, with a nickel RHSE. (C) 2000 The Electrochemical Society. Al l rights reserved.