A Polyketone-based Anion Exchange Membrane for Electrochemical Applications: Synthesis and Characterization
| Autor: | Graeme Nawn, F. Girardi, Gianni Cavinato, Rosa Di Maggio, Paolo Scardi, Vito Di Noto, Giuseppe Pace, Narges Ataollahi, Keti Vezzù |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Polyketone
Polyamines Anion exchange membrane Conductivity Conductivity Ion exchange Chemistry General Chemical Engineering Inorganic chemistry Anion exchange membrane Polyamines Polyketone Chemical Engineering (all) Electrochemistry 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Catalysis Thermogravimetry Membrane Ionic conductivity 0210 nano-technology Amination |
| Zdroj: | Electrochimica acta 226 (2017): 148–157. doi:10.1016/j.electacta.2016.12.150 info:cnr-pdr/source/autori:Ataollahi N.; Vezzu K.; Nawn G.; Pace G.; Cavinato G.; Girardi F.; Scardi P.; Di Noto V.; Di Maggio R./titolo:A Polyketone-based Anion Exchange Membrane for Electrochemical Applications: Synthesis and Characterization/doi:10.1016%2Fj.electacta.2016.12.150/rivista:Electrochimica acta/anno:2017/pagina_da:148/pagina_a:157/intervallo_pagine:148–157/volume:226 |
| DOI: | 10.1016/j.electacta.2016.12.150 |
| Popis: | An anion exchange membrane (AEM) was made with a modified polyketone (PK). AEMs of polyamines were prepared in a three-step procedure: (I) PK synthesis using ethylene and carbon monoxide, supported by a Pd catalyst, followed by the introduction of 1,2-diaminopropane to yield the polymeric amines; (II) solvent casting of the modified PK with a low degree of amination; (III) iodomethylation to form the AEM (PK-PDAPm(I)), followed by ion exchange with KOH (PK-PDAPm(OH)). The structure of the modified polyketone was characterized using FT-IR, and UV–vis spectroscopy, demonstrating the successful introduction of amine in the PK. The conductivity of the AEM was studied using broadband electric spectroscopy (BES) in the temperature range from −100 to 120 °C: the highest value of 9 × 10 −4 S·cm −1 was reached at 120 °C for the ionic conductivity of PK-PDAPm(I), followed by PK-PDAPm(OH) with values of the same order of magnitude (10 −4 S·cm −1 ). Thermogravimetry showed that the material is thermally stable up to 200 °C. |
| Databáze: | OpenAIRE |
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