Laucirica, Gregorio ; Toimil-Molares, María Eugenia ; Trautmann, Christina ; Marmisollé, Waldemar ; Azzaroni, Omar (2020)
Polyaniline for improved blue energy harvesting: highly rectifying nanofluidic diodes operating in hypersaline conditions via one-step functionalization.
In: ACS Applied Materials & Interfaces, 12 (25)
doi: 10.1021/acsami.0c05102
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Solid-state nanochannels have attracted substantial attention of the scientific community due to their remarkable control of ionic transport and the feasibility to regulate the iontronic output by different stimuli. Most of the developed nanodevices are subjected to complex modification methods or show functional responsiveness only in moderate-ionic-strength solutions. Within this project, we present a nanofluidic device with enhanced ionic current rectification properties attained by a simple one-step functionalization of single bullet-shaped polyethylene terephthalate (PET) nanochannels with polyaniline (PANI) that can work in high-ionic-strength solutions. The integration of PANI also introduces a broad pH sensitivity, which makes it possible to modulate the ionic transport behavior between anion-selective and cation-selective regimes depending on the pH range. Since PANI is an electrochemically active polymer, ionic transport also becomes dependent on the presence of redox stimuli in solution. We demonstrate that PANI-functionalized single-nanochannel membranes function as an efficient salinity gradient-based energy conversion device even in acidic concentrated salt solutions, opening the door to applications under a variety of novel operating conditions.
Typ des Eintrags: | Artikel |
---|---|
Erschienen: | 2020 |
Autor(en): | Laucirica, Gregorio ; Toimil-Molares, María Eugenia ; Trautmann, Christina ; Marmisollé, Waldemar ; Azzaroni, Omar |
Art des Eintrags: | Bibliographie |
Titel: | Polyaniline for improved blue energy harvesting: highly rectifying nanofluidic diodes operating in hypersaline conditions via one-step functionalization |
Sprache: | Englisch |
Publikationsjahr: | 24 Juni 2020 |
Verlag: | ACS Publications |
Titel der Zeitschrift, Zeitung oder Schriftenreihe: | ACS Applied Materials & Interfaces |
Jahrgang/Volume einer Zeitschrift: | 12 |
(Heft-)Nummer: | 25 |
DOI: | 10.1021/acsami.0c05102 |
Kurzbeschreibung (Abstract): | Solid-state nanochannels have attracted substantial attention of the scientific community due to their remarkable control of ionic transport and the feasibility to regulate the iontronic output by different stimuli. Most of the developed nanodevices are subjected to complex modification methods or show functional responsiveness only in moderate-ionic-strength solutions. Within this project, we present a nanofluidic device with enhanced ionic current rectification properties attained by a simple one-step functionalization of single bullet-shaped polyethylene terephthalate (PET) nanochannels with polyaniline (PANI) that can work in high-ionic-strength solutions. The integration of PANI also introduces a broad pH sensitivity, which makes it possible to modulate the ionic transport behavior between anion-selective and cation-selective regimes depending on the pH range. Since PANI is an electrochemically active polymer, ionic transport also becomes dependent on the presence of redox stimuli in solution. We demonstrate that PANI-functionalized single-nanochannel membranes function as an efficient salinity gradient-based energy conversion device even in acidic concentrated salt solutions, opening the door to applications under a variety of novel operating conditions. |
Freie Schlagworte: | nanochannels, polyaniline, nanofluidic diodes, hypersaline compatibility, salinity gradient power, salinity gradient power, osmotic power generation |
Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Ionenstrahlmodifizierte Materialien |
Hinterlegungsdatum: | 29 Feb 2024 08:06 |
Letzte Änderung: | 29 Feb 2024 08:06 |
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