An Electroactive Filter with Tunable Porosity Based on Glycolated Polythiophene

Johannes Gladisch; Vasileios K. Oikonomou; Maximilian Moser; Sophie Griggs; Iain McCulloch; Magnus Berggren; Eleni Stavrinidou

doi:10.1002/smsc.202100113

An Electroactive Filter with Tunable Porosity Based on Glycolated Polythiophene

Johannes Gladisch, Vasileios K. Oikonomou, Maximilian Moser, Sophie Griggs, Iain McCulloch, Magnus Berggren, Eleni Stavrinidou

Chemistry

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

The porosity offilters is typicallyfixed; thus, complex purification processesrequire application of multiple specializedfilters. In contrast, smartfilters withcontrollable and tunable properties enable dynamic separation in a single setup.Herein, an electroactivefilter with controllable pore size is demonstrated. Theelectroactivefilter is based on a metal mesh coated with a polythiophene polymerwith ethylene glycol sidechains (p(g3T2)) that exhibit unprecedented voltage-driven volume changes. By optimizing the polymer coating on the mesh, con-trollable porosity during electrochemical addressing is achieved. The poresreversibly open and close, with a dynamic range of more than 95%, corre-sponding to over 30μm change of pores’widths. Furthermore, the pores’widthscould be defined by applied potential with a 10μm resolution. From amonghundreds of pores from different samples, about 90% of the pores could beclosed completely, while only less than 1% are inactive. Finally, the electroactivefilter is used to control theflow of a dye, highlighting the potential forflow controland smartfiltration applications.

Original language	English (US)
Pages (from-to)	2100113
Journal	Small Science
DOIs	https://doi.org/10.1002/smsc.202100113
State	Published - Jan 28 2022

Bibliographical note

KAUST Repository Item: Exported on 2022-02-01
Acknowledgements: J.G. and V.K.O contributed equally to this work. This work was supported by The Wallenberg Wood Science Center (KAW 2018.0452), the Swedish Research Council—Vetenskapsrådet—VR-2020-05045, the Knut and Alice Wallenberg Foundation, and the Swedish Government Strategic Research Area in Materials Science on Advanced Functional Materials at Linköping University (Faculty Grant SFO-Mat-LiU No. 2009-00971). We also acknowledge financial support from KAUST, as well as from the European Union's Horizon 2020 research and innovation programme under grant agreement No.952911, project BOOSTER grant agreement No.862474, project RoLA-FLEX, grant agreement No.101007084, project CITYSOLAR as well as EPSRC Project EP/T026219/1

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10.1002/smsc.202100113

https://repository.kaust.edu.sa/bitstream/10754/675266/1/Small%20Science%20-%202022%20-%20Gladisch%20-%20An%20Electroactive%20Filter%20with%20Tunable%20Porosity%20Based%20on%20Glycolated%20Polythiophene.pdf

Cite this

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title = "An Electroactive Filter with Tunable Porosity Based on Glycolated Polythiophene",

abstract = "The porosity offilters is typicallyfixed; thus, complex purification processesrequire application of multiple specializedfilters. In contrast, smartfilters withcontrollable and tunable properties enable dynamic separation in a single setup.Herein, an electroactivefilter with controllable pore size is demonstrated. Theelectroactivefilter is based on a metal mesh coated with a polythiophene polymerwith ethylene glycol sidechains (p(g3T2)) that exhibit unprecedented voltage-driven volume changes. By optimizing the polymer coating on the mesh, con-trollable porosity during electrochemical addressing is achieved. The poresreversibly open and close, with a dynamic range of more than 95%, corre-sponding to over 30μm change of pores{\textquoteright}widths. Furthermore, the pores{\textquoteright}widthscould be defined by applied potential with a 10μm resolution. From amonghundreds of pores from different samples, about 90% of the pores could beclosed completely, while only less than 1% are inactive. Finally, the electroactivefilter is used to control theflow of a dye, highlighting the potential forflow controland smartfiltration applications.",

author = "Johannes Gladisch and Oikonomou, {Vasileios K.} and Maximilian Moser and Sophie Griggs and Iain McCulloch and Magnus Berggren and Eleni Stavrinidou",

note = "KAUST Repository Item: Exported on 2022-02-01 Acknowledgements: J.G. and V.K.O contributed equally to this work. This work was supported by The Wallenberg Wood Science Center (KAW 2018.0452), the Swedish Research Council—Vetenskapsr{\aa}det—VR-2020-05045, the Knut and Alice Wallenberg Foundation, and the Swedish Government Strategic Research Area in Materials Science on Advanced Functional Materials at Link{\"o}ping University (Faculty Grant SFO-Mat-LiU No. 2009-00971). We also acknowledge financial support from KAUST, as well as from the European Union's Horizon 2020 research and innovation programme under grant agreement No.952911, project BOOSTER grant agreement No.862474, project RoLA-FLEX, grant agreement No.101007084, project CITYSOLAR as well as EPSRC Project EP/T026219/1",

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AU - Gladisch, Johannes

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AU - McCulloch, Iain

AU - Berggren, Magnus

AU - Stavrinidou, Eleni

N1 - KAUST Repository Item: Exported on 2022-02-01 Acknowledgements: J.G. and V.K.O contributed equally to this work. This work was supported by The Wallenberg Wood Science Center (KAW 2018.0452), the Swedish Research Council—Vetenskapsrådet—VR-2020-05045, the Knut and Alice Wallenberg Foundation, and the Swedish Government Strategic Research Area in Materials Science on Advanced Functional Materials at Linköping University (Faculty Grant SFO-Mat-LiU No. 2009-00971). We also acknowledge financial support from KAUST, as well as from the European Union's Horizon 2020 research and innovation programme under grant agreement No.952911, project BOOSTER grant agreement No.862474, project RoLA-FLEX, grant agreement No.101007084, project CITYSOLAR as well as EPSRC Project EP/T026219/1

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N2 - The porosity offilters is typicallyfixed; thus, complex purification processesrequire application of multiple specializedfilters. In contrast, smartfilters withcontrollable and tunable properties enable dynamic separation in a single setup.Herein, an electroactivefilter with controllable pore size is demonstrated. Theelectroactivefilter is based on a metal mesh coated with a polythiophene polymerwith ethylene glycol sidechains (p(g3T2)) that exhibit unprecedented voltage-driven volume changes. By optimizing the polymer coating on the mesh, con-trollable porosity during electrochemical addressing is achieved. The poresreversibly open and close, with a dynamic range of more than 95%, corre-sponding to over 30μm change of pores’widths. Furthermore, the pores’widthscould be defined by applied potential with a 10μm resolution. From amonghundreds of pores from different samples, about 90% of the pores could beclosed completely, while only less than 1% are inactive. Finally, the electroactivefilter is used to control theflow of a dye, highlighting the potential forflow controland smartfiltration applications.

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SN - 2688-4046

SP - 2100113

JO - Small Science

JF - Small Science

ER -

An Electroactive Filter with Tunable Porosity Based on Glycolated Polythiophene

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