Electrolysis of a binary electrolyte in two-dimensional channel flow

✍ Scribed by C.Fredrik Wallgren; Fritz H. Bark; Bengt-Joel Andersson

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 814 KB
• Volume: 41
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(96)00128-4

✦ Synopsis

Numerical simulations have been performed to analyze the electric current density in an aqueous solution of CuSO,, flowing in a two-dimensional channel with finite electrodes placed symmetrically on opposite sides. A Butler-Volmer law is chosen as a boundary condition on the electrodes for current densities below the limiting current. At limiting current density, two modified boundary conditions at the cathode are derived. For 0 Q Pe C 25000, comparisons are made with results of other studies, and the agreement is excellent for large values of Pe but differ for Pe 5 I. For small values of the aDDlied voltage and large values of Pe. a semi-analvtic solution of the electric potential is derived. Copyright 0 1996?ublishedby Elsevier Science Ltd _ a