\(\mathbf{\gamma}\) Electrode aspect ratio B/L
\(\mathbf{\nu}\) Kinematic viscosity
\(\mathbf{\rho}\) Density of the electrolyte
\(\Phi\) Geometry parameter for laminar entry length
\(\mathbf{A}\) Electrode area
\(\mathbf{A}_{\mathbf{\text{ch}}}\) Cross-sectional area of the channel
\(\mathbf{A}_{\mathbf{\text{in}}}\) Cross-sectional area of the inlet
\(\mathbf{B}\) Electrode width (breadth)
\(\mathbf{C}_{\mathbf{(}\mathbf{\text{III}}\mathbf{)}}\) Concentration of hexachloroiridate(III)
\(\mathbf{C}_{\left(\mathbf{\text{IV}}\right)}\) Concentration of hexachloroiridate(IV)
\(\mathbf{C}_{\mathbf{\text{bulk}}}\) Bulk concentration of the reacting species
\(\mathbf{D}\) Diffusion Coefficient
\(\mathbf{d}_{\mathbf{H}}\) Hydraulic Diameter 2BS/(B+S)
\(\mathbf{F}\) Faraday’s number, i.e. 76485 C/mol
\(\mathbf{f}\) Friction factor
\(\mathbf{i}_{\mathbf{A,lim}}\) Limiting current density
\(\mathbf{J}_{\mathbf{M}}\) J-factor for mass transfer (Chilton-Colburn)
\(\mathbf{k}_{\mathbf{\text{LS}}}\) Liquid-Solid Mass transfer coefficient
\(\mathbf{L}\) Electrode length
\(\mathbf{L}_{\mathbf{\text{entry}}}\) Hydrodynamic Entry Length
Le Length number L/dH
\(\mathbf{n}\) Number of electrons exchanged
Re Reynolds number \(v_{0}d_{H}/\nu\)
\(\mathbf{S}\) Electrode spacing
Sc Schmidth number \(\nu/D\)
Sh Sherwood number \(k_{\text{LS}}d_{H}/D\)
\(\mathbf{T}\) Temperature
\(\mathbf{v}_{\mathbf{0}}\) Flow velocity over the electrode