Abstract
The main goal of this chapter is to present an overview of electrochemical cell operations. An electrochemical cell is devices that use a spontaneous chemical reaction to produce electricity or conversely use applied electricity to bring about non-spontaneous useful chemical reactions. The electroactive species in the ionic conductor (electrolyte) through mass transport reaches the electrode surface where Faradaic and Non-faradaic Processes occurs. A Faradaic process such as redox reaction at the electrode-solution interface gives rise to reduction or oxidation reaction. Fick’s law gives the rate of diffusion of the oxidized or reduced species in terms of a concentration gradient. The electrified solution-electrode interface was modeled using Helmholtz compact layer model, Gouy-Chapman diffuse layer model, and the Stern model. Accepted definitions of certain physical quantities were also presented.
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Emeji, I.C., Ama, O.M., Aigbe, U.O., Khoele, K., Osifo, P.O., Ray, S.S. (2020). Electrochemical Cells. In: Ama, O., Ray, S. (eds) Nanostructured Metal-Oxide Electrode Materials for Water Purification. Engineering Materials. Springer, Cham. https://doi.org/10.1007/978-3-030-43346-8_4
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DOI: https://doi.org/10.1007/978-3-030-43346-8_4
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