Current and Potential Distribution in Two-Phase (Gas Evolving) Electrochemical Reactors by the Finite Volume Method

Colli, Alejandro Nicolás; Bisang, Jose Maria

doi:10.1149/1945-7111/ac5d90

Cited by 15 publications

(1 citation statement)

References 65 publications

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“… 9 In their work, instead of treating particles separately, a density function is used to describe the particle size distribution (PSD) and the evolution of the precipitate. Their formula has been applied in various fields of research, for example, in the modeling of bacteria division, 10 in electrochemistry, 11 or in polymer chemistry. 12 …”

Section: Introductionmentioning

confidence: 99%

Population Mass Balance Model for Precipitation with Turbidity Measurements

Papp,

Tóth,

Horváth

2024

ACS Omega

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The discretized population balance theory has been proven to be a useful method to simulate systems in which solid particles are present. In this work, we introduce a new approach to model precipitation reactions based on the temporal evolution of product concentration, from which particle size distribution, its dynamics, and the specific interfacial energies can be obtained. For a reference study, the previously investigated calcium oxalate precipitation was selected, where the reaction was followed via turbidity measurement. From the obtained particle size distribution, we can show that at low supersaturation, growth is the dominant process, while at higher supersaturation, nucleation is the dominant process. Moreover, the temporal change of the distribution curve has allowed us to split the precipitation into a nucleation, a growth-driven intermediate, and a saturation regime. Furthermore, the comparison between the experimental and calculated results has proved that the method is suitable for predicting particle size distributions and specific interfacial energies.

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