Morphological tuning of membrane processing by temporal proton-metal cation substitution in perfluorosulfonic acid membranes was written by Vetter, Kim-Marie;Reichbauer, Thomas;Martic, Nemanja;Reinisch, David;Hinrichsen, Olaf;Schmid, Guenter. And the article was included in Electrochimica Acta in 2020.Computed Properties of C4H12ClN The following contents are mentioned in the article:
The authors studied how the exchange of the countercation in perfluorosulfonic acid (PFSA) membranes influences 1st their processability and secondly their electrochem. performance in H2O electrolysis. Cation-exchanged membranes were prepared (Li+, Na+, K+, Mg2+, Zn2+, Ca2+, tetra-Me ammonium [TMA+], tetra-Bu ammonium [TBA+]) and their glass transition temperatures (Tg) were assessed by dynamic mech. anal. (DMA). A good correlation between the found Tg values and the processability of the membranes was found, imitating an industrial membrane electrode assembly (MEA) fabrication process. Li+, TBA+ and Zn2+ MEAs were electrochem. characterized in H2O electrolysis. Cyclic voltammetry (CV) polarization studies were performed to study initial effects of ion exchange based on the binding energies of the resp. metal cation incorporated into the membrane. Impedance spectroscopy was used to measure membrane resistances during H2O electrolysis. Potentiostatic and galvanostatic experiments were employed to differentiate between initial and permanent effects, the latter arising from stable structural arrangements of the polymer side chains. In-situ potential-driven substitution (PDS) of the metal ions by protons is quant. for Li+. At 1.5 A/cm2 the rate of PDS was 0.2 mmol/cm2 per min. However, morphol. changes in the membrane remained, opening the possibility for morphol. tuning of membrane fabrication by temporal proton-metal cation substitution. This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0Computed Properties of C4H12ClN).
Tetramethylammonium chloride (cas: 75-57-0) belongs to organic chlorides. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. Alkyl chlorides readily react with amines to give substituted amines. Alkyl chlorides are substituted by softer halides such as the iodide in the Finkelstein reaction.Computed Properties of C4H12ClN
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics