Separating boundary potential changes at thin solid contact ion transfer voltammetric membrane electrodes was written by Mao, Canwei;Yuan, Dajing;Wang, Lu;Bakker, Eric. And the article was included in Journal of Electroanalytical Chemistry in 2021.Category: chlorides-buliding-blocks The following contents are mentioned in the article:
Thin ion-selective membrane films deposited on solid electrode substrate are useful tools to study ion transfer processes. This is because the exptl. conditions may be chosen such that diffusion processes within the membrane and contacting aqueous solution are not rate limiting. In an ideal case, therefore, equilibrium considerations may be used to describe the resulting ion transfer voltammograms. For example, the electrochem. oxidation of an elec. neutral redox mol. in the membrane results in a cationic oxidized form. To preserve electroneutrality, a cation is transferred out of the membrane into solution, freeing the cation-exchanger of the membrane to become the counterion of the oxidized redox mol. This work describes a model system that agrees well with thermodn. theory, using the lipophilic (1-dodecyl-1H-1,2,3-triazol-4-yl)ferrocene as redox mol. and a monovalent reference cation for ion transfer. The full peak width at half maximum was found as 0.110 V, in agreement with theory, and with peak current proportional to scan rate supporting thin layer behavior. The charge passed during the voltammetric scan was related to ion-exchanger concentration available for ion extraction as a function of potential. Subtraction of the ion transfer potential using the reference ion from the exptl. one for each charge increment gave the potential change for the electrochem. ion-to-electron transducer. In one application, the potential change of the polymeric transducing layer poly(3-octylthiophene) (POT) film upon electrochem. oxidation within the membrane was characterized. A nonlinear potential-charge curve was observed, in contrast to earlier assumptions. This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0Category: chlorides-buliding-blocks).
Tetramethylammonium chloride (cas: 75-57-0) belongs to organic chlorides. Organic chlorides can be used in production of: PVC, pesticides, chloromethane, teflon, insulators. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Category: chlorides-buliding-blocks
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics