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Updated: Feb 1, 2026

Electrochemical Roughening of Thin-Film Platinum Macro and Microelectrodes
Published on: June 30, 2019
Electrochemical characterisation and comparison of transport in Nafion films and particles
Lifu Chen1, Chuhong Lin, Richard G Compton
1Department of Chemistry, Physical and Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford OX1 3QZ, UK. richard.compton@chem.ox.ac.uk.
Abstract:
The diffusional transport of the dication and monocation of methyl viologen, MV2+ and MV+, in hydrated Nafion films and particles is studied electrochemically. Methodology is established for characterising the relative rates of transport and for evaluating the diffusion coefficient of the two ions. The transport in the particles is shown to be significantly faster than in films of similar thickness whilst the diffusion of MV2+ is confirmed to be faster than that of MV+.
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