TY - JOUR
T1 - Theoretical aspects of laminar flow in a channel-type electrochemical cell as applied to in situ attenuated total reflection-infrared spectroscopy
AU - Tolmachev, Yuriy V.
AU - Wang, Zhenghao
AU - Scherson, Daniel Alberto
PY - 1996/1/1
Y1 - 1996/1/1
N2 - Analytic expressions are derived, within the Lévêque approximation, for the steady-state concentration profile of a reactant or a stable product generated via first-order kinetics at an electrode in a channel-type electrochemical cell under fully developed laminar flow. It is shown that for cell geometries and other experimental conditions easily realizable in the laboratory, the concentration of species directly above the insulating flat surface adjacent to the downstream edge of the electrode c(x,y), where x is the direction of fluid flow and y is the distance normal to the electrode surface, differs only slightly (less than 5%) from c(x,0), the concentration on the surface at the prescribed x, for values of y on the order of microns. Implications of these results to the quantitative analysis of in situ attenuated total reflection-infrared spectroscopy in a channel-type spectroelectrochemical cell (Barbour et al.6) are discussed.
AB - Analytic expressions are derived, within the Lévêque approximation, for the steady-state concentration profile of a reactant or a stable product generated via first-order kinetics at an electrode in a channel-type electrochemical cell under fully developed laminar flow. It is shown that for cell geometries and other experimental conditions easily realizable in the laboratory, the concentration of species directly above the insulating flat surface adjacent to the downstream edge of the electrode c(x,y), where x is the direction of fluid flow and y is the distance normal to the electrode surface, differs only slightly (less than 5%) from c(x,0), the concentration on the surface at the prescribed x, for values of y on the order of microns. Implications of these results to the quantitative analysis of in situ attenuated total reflection-infrared spectroscopy in a channel-type spectroelectrochemical cell (Barbour et al.6) are discussed.
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U2 - 10.1149/1.1837181
DO - 10.1149/1.1837181
M3 - Article
AN - SCOPUS:0030259561
VL - 143
SP - 3160
EP - 3166
JO - Journal of the Electrochemical Society
JF - Journal of the Electrochemical Society
SN - 0013-4651
IS - 10
ER -