Toluene‐Mediated Morphology Tuning of Diblock Copolymer‐Templated Porous Si/Ge/K/C Thin Films for Li‐Ion Batteries
Amphiphilic diblock copolymer poly(styrene‐b‐ethylene oxide) templating in combination with sol–gel chemistry is utilized to synthesize porous mixed silicon/germanium/potassium/carbon (Si/Ge/K/C) thin films. As a Si/Ge source, the dissolvable Zintl phase K12Si12Ge5 is used. The toluene‐mediated morp...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley-VCH
2023-10-01
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| Series: | Advanced Energy & Sustainability Research |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/aesr.202300096 |
| _version_ | 1827796450535276544 |
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| author | Christian L. Weindl Kexin Wu Christian E. Fajman Zhuijun Xu Tianle Zheng Ting Tian Constantin Harder Benedikt Sochor Stephan V. Roth Thomas F. Fässler Peter Müller-Buschbaum |
| author_facet | Christian L. Weindl Kexin Wu Christian E. Fajman Zhuijun Xu Tianle Zheng Ting Tian Constantin Harder Benedikt Sochor Stephan V. Roth Thomas F. Fässler Peter Müller-Buschbaum |
| author_sort | Christian L. Weindl |
| collection | DOAJ |
| description | Amphiphilic diblock copolymer poly(styrene‐b‐ethylene oxide) templating in combination with sol–gel chemistry is utilized to synthesize porous mixed silicon/germanium/potassium/carbon (Si/Ge/K/C) thin films. As a Si/Ge source, the dissolvable Zintl phase K12Si12Ge5 is used. The toluene‐mediated morphological changes in the porous mixed Si/Ge/K/C thin films are studied with scanning electron microscopy and grazing incidence small/wide‐angle X‐Ray scattering. A dichloromethane solvent vapor annealing step is applied to study the additional morphological transformation inside the films. Since Ge and Si are promising anode materials in Li‐ion batteries, CR2032 half‐cells are manufactured with the porous mixed Si/Ge/K/C thin films and characterized by cyclic voltammograms, cycling, and impedance spectroscopy. |
| first_indexed | 2024-03-11T19:07:20Z |
| format | Article |
| id | doaj.art-880cf9b618414ab8a8c87645b3ff62d0 |
| institution | Directory Open Access Journal |
| issn | 2699-9412 |
| language | English |
| last_indexed | 2024-03-11T19:07:20Z |
| publishDate | 2023-10-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Energy & Sustainability Research |
| spelling | doaj.art-880cf9b618414ab8a8c87645b3ff62d02023-10-10T05:50:52ZengWiley-VCHAdvanced Energy & Sustainability Research2699-94122023-10-01410n/an/a10.1002/aesr.202300096Toluene‐Mediated Morphology Tuning of Diblock Copolymer‐Templated Porous Si/Ge/K/C Thin Films for Li‐Ion BatteriesChristian L. Weindl0Kexin Wu1Christian E. Fajman2Zhuijun Xu3Tianle Zheng4Ting Tian5Constantin Harder6Benedikt Sochor7Stephan V. Roth8Thomas F. Fässler9Peter Müller-Buschbaum10Department of Physics TUM School of Natural Sciences Chair for Functional Materials Technical University of Munich James-Franck-Str. 1 85748 Garching GermanyDepartment of Physics TUM School of Natural Sciences Chair for Functional Materials Technical University of Munich James-Franck-Str. 1 85748 Garching GermanyDepartment of Chemistry TUM School of Natural Sciences Chair of Inorganic Chemistry with Focus on Novel Materials Technical University of Munich Lichtenbergstr. 4 85748 Garching GermanyDepartment of Physics TUM School of Natural Sciences Chair for Functional Materials Technical University of Munich James-Franck-Str. 1 85748 Garching GermanyDepartment of Physics TUM School of Natural Sciences Chair for Functional Materials Technical University of Munich James-Franck-Str. 1 85748 Garching GermanyDepartment of Physics TUM School of Natural Sciences Chair for Functional Materials Technical University of Munich James-Franck-Str. 1 85748 Garching GermanyDepartment of Physics TUM School of Natural Sciences Chair for Functional Materials Technical University of Munich James-Franck-Str. 1 85748 Garching GermanyDeutsches Elektronen-Synchrotron DESY Notkestr.85 22607 Hamburg GermanyDeutsches Elektronen-Synchrotron DESY Notkestr.85 22607 Hamburg GermanyDepartment of Chemistry TUM School of Natural Sciences Chair of Inorganic Chemistry with Focus on Novel Materials Technical University of Munich Lichtenbergstr. 4 85748 Garching GermanyDepartment of Physics TUM School of Natural Sciences Chair for Functional Materials Technical University of Munich James-Franck-Str. 1 85748 Garching GermanyAmphiphilic diblock copolymer poly(styrene‐b‐ethylene oxide) templating in combination with sol–gel chemistry is utilized to synthesize porous mixed silicon/germanium/potassium/carbon (Si/Ge/K/C) thin films. As a Si/Ge source, the dissolvable Zintl phase K12Si12Ge5 is used. The toluene‐mediated morphological changes in the porous mixed Si/Ge/K/C thin films are studied with scanning electron microscopy and grazing incidence small/wide‐angle X‐Ray scattering. A dichloromethane solvent vapor annealing step is applied to study the additional morphological transformation inside the films. Since Ge and Si are promising anode materials in Li‐ion batteries, CR2032 half‐cells are manufactured with the porous mixed Si/Ge/K/C thin films and characterized by cyclic voltammograms, cycling, and impedance spectroscopy.https://doi.org/10.1002/aesr.202300096diblock copolymersLi-ion batteriesporous filmsSi/Ge/K/Csolvent vapor annealing |
| spellingShingle | Christian L. Weindl Kexin Wu Christian E. Fajman Zhuijun Xu Tianle Zheng Ting Tian Constantin Harder Benedikt Sochor Stephan V. Roth Thomas F. Fässler Peter Müller-Buschbaum Toluene‐Mediated Morphology Tuning of Diblock Copolymer‐Templated Porous Si/Ge/K/C Thin Films for Li‐Ion Batteries Advanced Energy & Sustainability Research diblock copolymers Li-ion batteries porous films Si/Ge/K/C solvent vapor annealing |
| title | Toluene‐Mediated Morphology Tuning of Diblock Copolymer‐Templated Porous Si/Ge/K/C Thin Films for Li‐Ion Batteries |
| title_full | Toluene‐Mediated Morphology Tuning of Diblock Copolymer‐Templated Porous Si/Ge/K/C Thin Films for Li‐Ion Batteries |
| title_fullStr | Toluene‐Mediated Morphology Tuning of Diblock Copolymer‐Templated Porous Si/Ge/K/C Thin Films for Li‐Ion Batteries |
| title_full_unstemmed | Toluene‐Mediated Morphology Tuning of Diblock Copolymer‐Templated Porous Si/Ge/K/C Thin Films for Li‐Ion Batteries |
| title_short | Toluene‐Mediated Morphology Tuning of Diblock Copolymer‐Templated Porous Si/Ge/K/C Thin Films for Li‐Ion Batteries |
| title_sort | toluene mediated morphology tuning of diblock copolymer templated porous si ge k c thin films for li ion batteries |
| topic | diblock copolymers Li-ion batteries porous films Si/Ge/K/C solvent vapor annealing |
| url | https://doi.org/10.1002/aesr.202300096 |
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