The optical probe beam deflection technique has been employed to study two-dimensional concentration gradients within the electrolyte of a zinc model pore. The model pore cell constructed for this study retains the small, confined geometry and two-dimensional character of an actual pore within a porous zinc electrode. Refractive index gradients in the direction of the model pore axis showed that the concentration of zincate ion reaches a maximum between the model pore mouth and a position one-fourth of the distance toward the pore root during the anodic oxidation of the zinc electrode. Also, the variation in the refractive index gradient normal to the electrode along the length of the zinc anode allowed us to calculate the local current density within the model pore.) unless CC License in place (see abstract). ecsdl.org/site/terms_use address. Redistribution subject to ECS terms of use (see 193.61.135.34 Downloaded on 2015-06-01 to IP
A two-dimensional numerical model of mass transfer in a zinc model pore has been developed to interpret results obtained using the probe beam deflection technique. The concentrations and concentration gradients of the electrolyte species were calculated by the numerical model and were shown to provide good quantitative agreement with the experimental results. The combination of theoretical and experimental analyses led to an understanding of how the kinetic, geometric, and mass transport parameters determined the current and concentration distributions within the model pore electrolyte.) unless CC License in place (see abstract). ecsdl.org/site/terms_use address. Redistribution subject to ECS terms of use (see 137.99.31.134 Downloaded on 2015-06-16 to IP
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