High temperature electrochemical studies using a channel flow cell heated by radio frequency radiation

Electrodeposition of Lead at Boron‐Doped Diamond Film Electrodes: Effect of Temperature

“…with a diffusion activation energy of 22.5 kJ mol À1 [36,37]. Taking this into account, the results of the analysis are shown in Table 2.…”

High‐Temperature Electrochemistry: A Review

“…The heat gun is controlled electronically, the cell is placed in the path of the airflow inside an insulated box, through which all the necessary electrodes, and gas inlet and outlet ports are housed. A thermocouple positioned just in front of the cell wall nearest the heat gun is used to measure the air temperature, and an independent digital thermometer can be placed directly in the solution prior to carrying out the experiment to calibrate the measured air temperature to the actual solution temperature [28,29,57].…”

“…Since the radio frequency channel operates under non-isothermal conditions the relationship between the limiting current and the flow-rate cannot be described by an analytical equation. Instead, a finite element program (FIDAP) is used which takes into account the complex heat and mass flow, as well as subsequent differences in viscosity and diffusivity in the different regions of the flow-cell [28,29,57].…”

“…The RF-Cell to date was initially been used to investigate the simple one and two electron reactions in aqueous solutions of N,N,N',N'-tetramethyl-p-phenylenediamine, N,N-dimethyl-p-phenylenediamine and hydroquinone [28] and diffusion activation parameters were determined from Arrhenius and Stokes-Einstein plots. It has since been utilized to study the diffusion activation parameters of similar compound along with the ECE reaction of miodonitrobenzene in acetonitrile [29].…”

“…Gr¸ndler, Baranski and others have developed and utilized non-isothermal methods of heating electrodes; these include hot-wire techniques using AC heating [31 ± 48], hot-microdisc techniques using very high frequency AC heating [49], microwave radiation [26, 50 ± 56] or radio frequency radiation [28,29,57]. The fundamental aspects of these heated electrodes are detailed in Section 4.1.…”