Research activities

Research concentrates on electrochemical digital simulation; that is, the solution of Fick's diffusion equation, with the special boundary conditions given by the electrochemical context. In recent times, some of the major problems have been solved, such as that of fast homogeneous reactions, coupled reactions, and stability in this context has been examined. We now have a handle on most of these problems and the publications list reflects activity on these fronts.

We have provided accurate reference values of the current at the ultramicrodisk and ultramicroband electrodes. Recent work includes simulation of the conical well electrode, the conical-tip electrode and accurate values of fluxes at cylindrical and capped cylindrical electrodes. An excursion outside electrochemistry dealt with the dynamics of thermal gas reactions; and within electrochemistry, more efficient ways of simulating enzyme systems. A more recent publication is on the optimisation of simulations of two-dimensional systems, comparing several transformations that have been suggested, investigating multi-point spatial derivative approximations, orthogonal collocation and the eigenvalue, -vector method. Some surprises were encountered in this work. Enzyme systems have been investigated, as were some ways to compute electric field effects, surface concentrations over a disk electrode, and the use of the Saul'yev method in two dimensions. There was another excursion into another field, simulating a system of chemical reactions in a biochemical context. Recently the behaviour of rectangular (including square) electrodes and arrays of square electrodes has been simulated, providing some steady state vurrent values.

External collaborators

Recent publications


  • Digital Simulation in Electrochemistry, 4th revised and extended edition, Springer Verlag, Heidelberg 2016.
  • Fortran 90/95 bog på dansk(Fortran 90/95 text in Danish), kan downloades her.
  • Num. Comp. notes, in Danish and English, Download here.

  • Papers of the last 5 years, in reverse order:

  • Simulation of steady state limiting currents at arrays of square electrodes D. Britz, J. Strutwolf, O. Østerby, Electrochim. Acta 462 (2023) 142728:1-5.
  • Rectangular electrodes: Simulation of accurate steady state currents and the behaviour of square electrode arrays D. Britz, J. Strutwolf, O. Østerby, Electrochim. Acta 404 (2022) 139750:1-7.
  • Revisiting rectangular electrodes: a simulation study, D. Britz, J. Strutwolf, O. Østerby, Electrochim. Acta 338 (2020) 135728:1-7.
  • Numerical convergence analysis of the Frank-Kamenetskii equation, M. Woolway, B. A. Jacobs, E. Momoniat, C. Harley, D. Britz, Entropy 22 (2020) 84:1-17.
  • Comment on “Atmospheric chemistry of iodine anions: elementary reactions of I−, IO− and IO2− with ozone studied in the gas-phase at 300 K using an ion trap”, Teiwes et al., Phys. Chem. Chem. Phys., 2018, 20, 20608, D. Britz, Phys. Chem. Chem. Phys. 21 (2019) 22654-22655.
  • Use of the Saul'yev method for the digital simulation of chronoamperometry at the disk electrode, in the presence of homogeneous chemical reactions, D. Britz, J. Strutwolf, Electrochim. Acta 283 (2018) 300-305.
  • Full publication list

  • Cold fusion bibliography

    The bibliography is now maintained at another site

    Download, Fortran 90/95, lærebog på dansk

    Du kan downloade bogen som pdf-fil

    Downloads, Num. Comp. booklet

  • Num. Comp. booklet (Engl.), postscript
  • Num. Comp. booklet (Engl.), pdf
  • Num. Comp. hæfte (dansk), postscript
  • Num. Comp. hæfte (dansk), pdf