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This research aims to develop a straightforward method for measuring diffusion coefficients in solution, emphasizing the impact of molecular charge.

An Effective Way to Determine the Diffusion Coefficient Using Double-Potential-Step Chronocoulometry. An Undergraduate Physical Chemistry Laboratory Experiment

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This research aims to develop a straightforward method for measuring diffusion coefficients in solution, emphasizing the impact of molecular charge.
Double-potential-step chronocoulometry was utilized to measure diffusion coefficients.
Electrode reaction products of a ferrocene/ferrocenium redox couple were examined.
Measurements were made for both charged and uncharged forms of molecules.
Students engaged in hands-on laboratory experiments to understand electrochemical concepts.
The method successfully determined the diffusion coefficients of charged and uncharged particles.
Significant differences in diffusion coefficients were observed based on the charge of the molecules.
Students gained practical experience with cyclic voltammetry and chronocoulometry.

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Laboratory experiment demonstrates diffusion coefficient differences in charged and uncharged molecules using electrochemical methods.

Koca et al. (2007) studied this question.

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