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
Dr. Jörg Strutwolf
Institute for Print and Media Technology, Chemnitz University of Technology, 09107 Chemnitz, Germany
The collaboration is in digital simul
ation, and has been ongoing since 2000.
Dr. Leslaw Bieniasz
Faculty of Electrical and Computer Engineering, Cracow University of Technology.
Since about 1993 there has been fruitful collaboration in the field of digital simulation, especially on issues of numerical stability. This work continues.
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:
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.
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.
Full publication list