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 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.

External collaborators

Recent publications


Monographs

  • 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:

  • 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.
  • Use of the Saul'yev method for the digital simulation of chronoamperometry and linear sweep voltammetry at the ultramicrodisk electrode, D. Britz, J. Strutwolf, O. Østerby, Electrochim. Acta 258 (2017) 17-23.
  • Ketone body acetoacetate buffers methylglyoxal via a non-enzymatic conversion during diabetic and dietary ketosis, T. Salomón, C. Sibbersen, J. Hansen, D. Britz, M. Vandsted Svart, T. Schmidt Voss, N. Møller, N. Gregersen, K. A. Jørgensen, J. Palmfeldt, T. Bjørnskov Poulsen and M. Johannsen, Cell Chem. Biol. 24, (2017) 935-943.
  • Surface concentration nonuniformities resulting from chronoamperometry of a reversible reaction at an ultramicrodisk electrode, D. Britz, J. Strutwolf, J. Electroanal. Chem. 776 (2016) 202-205.
  • Digital simulation of chronoamperometry at a disk electrode under a flat polymer film containing an enzyme, D. Britz, J. Strutwolf, Electrochim. Acta 152 (2015) 302-307.
  • Several ways to simulate time dependent liquid junction potentials by finite differences D. Britz, J. Strutwolf, Electrochim. Acta 137 (2014) 328-335.
  • Digital simulation of Electrochemistry at Microelectrodes D. Britz, 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, J. Strutwolf, Biosensors Bioelectronics 50 (2013) 269-277.

  • Full publication list

  • Download, Fortran 90/95, lærebog på dansk

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