Work

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 recently 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. The most 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. More recently, enzyme systems have been investigated.

External collaborators

Recent publications


Monographs

  • Digital Simulation in Electrochemistry, 3rd revised and extended edition, Springer Verlag, Heidelberg 2005. ISBN: 3-540-23979-0 & 0-387-18979-3.
  • 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:

  • Several ways to simulate time dependent liquid junction potentials by finite differences D. Britz, O. J. Strutwolf, Electrochim. Acta 137 (2014) 328-335.
  • Digital simulation of Electrochemistry at Microelectrodes D. Britz, O. J. Strutwolf, in Microelelectrodes (Ed.: K.F. Lei) (2014) 1-85, Nova Science Publishers, New York.
  • Digital simulation of chronoamperometry at an electrode within a hemispherical polymer drop containing an enzyme: Comparison of a hemispherical with a flat disk electrode D. Britz, O. J. Strutwolf, Biosensors Bioelectronics 50 (2013) 269-277.
  • Minimum grid digital simulation of chronoamperometry at a disk electrode D. Britz, O. Østerby, J. Strutwolf, Electrochim. Acta 78 (2012) 365-376.
  • Digital simulation of thermal reactions D. Britz, J. Strutwolf, O. Østerby, Appl. Math. Comp. 218 (2011) 1280-1290.
  • The true history of adaptive grids in electrochemical simulation D. Britz, Electrochim. Acta 56 (2011) 4420-4421.
  • Reference values of the chronoamperometric response at cylindrical and capped cylindrical electrodes D. Britz, O. Østerby, J. Strutwolf, Electrochim. Acta 55 (2010) 5629-5635.
  • Diffusion-limited chronoamperometry at conical-tip microelectrodes D. Britz, S. Chandra, J. Strutwolf, D.K.Y. Wong, Electrochim. Acta 55 (2010) 1272-1277.

  • Full publication list

  • Download, Fortran 90/95, lærebog på dansk

    Du kan downloade bogen som pdf-fil

    Links relevant to "Digital Simulation in Electrochemistry"

  • Springer-Verlag
  • The book online (including a link to the examples; click on Procedures etc)
  • List of errors in the book, pdf file

  • Examples

    This web page includes a number of modules, functions and subroutines and programs using them. All have been tested reasonably thoroughly, and should work with all permissible input. A description of all these, beyond what is contained as commentary in the source codes, is given in Appendix C in the book "Digital Simulation in Electrochemistry, 3rd Ed., D. Britz, Springer 2005." The source codes are all also downloadable from the Springer site, with the exception of the program LSV4IRC, in which an error was found and corrected, but this was not possible at the Springer site. The correct source code is given here.

    All programs work with a precision defined in STUFF.F90 of at least 14 decimal digits.