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Modelling of Reaction and Diffusion Processes in a High‐surface‐area Biofuel Cell Electrode Made of Redox Polymer‐grafted Carbon by T. Tamaki; T. Ito; T. Yamaguchi is a Engineering article available to read on EtoBox.
What is Modelling of Reaction and Diffusion Processes in a High‐surface‐area Biofuel Cell Electrode Made of Redox Polymer‐grafted Carbon about?
## Abstract A mathematical model considering reaction and diffusion processes in biofuel cells, such as enzyme reactions, apparent electron diffusion in the redox polymer, and diffusion of a substrate in a redox polymer film, verified the effectiveness of a high‐surface‐area biofuel cell electrode with a thin, grafted redox polymer layer. The model calculation shows that the rate‐limiting step of apparent electron diffusion can be overcome by using the electrode with a thin redox polymer, even when the redox polymer used has a low apparent electron diffusion coefficient. In the electrode, increase in the second‐order rate constant for the reaction between an enzyme and a mediator above a certain value does not increase the current density, and thus the mediator used in the electrode should have an adequate second‐order rate constant and a more negative redox potential. In addition, increase in the turnover rate of the enzyme and the surface coverage of the enzyme allows an increase in the current density; the surface coverage of the enzyme has the most influence. Based on these calculations, it is important to realise high‐surface‐area electrodes with a thin redox polymer, and with
Who reads Modelling of Reaction and Diffusion Processes in a High‐surface‐area Biofuel Cell Electrode Made of Redox Polymer‐grafted Carbon?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- T. Tamaki; T. Ito; T. Yamaguchi
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Ltd.; Wiley (ISSN 1615-6846)
- Published
- 2009
- Language
- EN
- Field
- Engineering (Physical Sciences)