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Citation: Lin Xiangqin, Bo Aili. A New Concept Generation of a Nonuniform Space-Volume-Grid System for Electrochemical Digital Simulation[J]. Chinese Journal of Applied Chemistry, ;1995, 12(4): 52-57. shu

A New Concept Generation of a Nonuniform Space-Volume-Grid System for Electrochemical Digital Simulation

Lin Xiangqin ,
Bo Aili

National Analyticla Research Center of Electrochemistry and Spectroscopy, Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022

Received Date: 21 September 1994
Revised Date: 15 March 1995

A nonuniform space-volume-grid system is generated by repeatedly dividing the solution layer next to the electrode surface. For outer limit of the ith grid it is simply ex-pressed as X_i^o=△Xβ^i-1. With a dividing factor β≥2 the generated space-volume grid is ex-panded by the factor of β for i > 2,however the volume ratio for the second and the first grid is only (β-1). The simulation accuracy and stability of the grid system for explicit-finite-difference algorithm are characterized by experiments of chronoamperometry and cyclic voltammetry experiments. The results demonstrate that the simulation is relatively stable and accurate enough for theoretical comparison at β=2. This system can even be operated for time-saving qualitative test at β values as large as 16.
- electroanalytical chemistry,
- digital simulation,
- nonumiform space-volume grid
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