End‐to‐End Pierced Carbon Nanosheets with Meso‐Holes
Abstract The remarkable properties of 2D nanomaterials are well known. However, their high interfacial adhesion energy often leads to restacking issues, limiting their potential in various applications. A strategic synthetic approach is presented to overcome this challenge. Specifically, the study f...
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| Format: | Article |
| Language: | English |
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Wiley
2025-01-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202409546 |
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| author | Minjun Kim Hiroki Nara Yusuke Asakura Takashi Hamada Peng Yan Jacob Earnshaw Meng An Miharu Eguchi Yusuke Yamauchi |
| author_facet | Minjun Kim Hiroki Nara Yusuke Asakura Takashi Hamada Peng Yan Jacob Earnshaw Meng An Miharu Eguchi Yusuke Yamauchi |
| author_sort | Minjun Kim |
| collection | DOAJ |
| description | Abstract The remarkable properties of 2D nanomaterials are well known. However, their high interfacial adhesion energy often leads to restacking issues, limiting their potential in various applications. A strategic synthetic approach is presented to overcome this challenge. Specifically, the study first demonstrates the use of layered aluminosilicate as a sacrificial 2D template to allow the growth of highly ordered meso‐holey polymeric layers, which can be subsequently exfoliated upon the removal of aluminosilicate and thermally converted to perpendicularly open meso‐holey carbon (POMC). On the other hand, perpendicularly blocked meso‐holey carbon (PBMC) is obtained with non‐sacrificial 2D template of graphene oxide. When both POMC and PBMC are evaluated by operando hydrodynamic electrochemical impedance spectroscopy and transmission line model analysis for electrochemical reduction of oxygen, POMC achieves a remarkable improvement of charge transfer and mass transfer by up to 4.1 and 7.9 times, respectively, as compared to PBMC. This study therefore highlights the importance of perpendicularly open 2D nanoarchitectures in circumventing the restacking effect, offering valuable insights for leveraging 2D nanomaterials with open meso‐holes in various applications. |
| format | Article |
| id | doaj-art-c609447178454c9cbd6e06b147bc0f60 |
| institution | Kabale University |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-c609447178454c9cbd6e06b147bc0f602025-01-20T13:04:18ZengWileyAdvanced Science2198-38442025-01-01123n/an/a10.1002/advs.202409546End‐to‐End Pierced Carbon Nanosheets with Meso‐HolesMinjun Kim0Hiroki Nara1Yusuke Asakura2Takashi Hamada3Peng Yan4Jacob Earnshaw5Meng An6Miharu Eguchi7Yusuke Yamauchi8Australian Institute for Bioengineering and Nanotechnology (AIBN) The University of Queensland Queensland 4072 AustraliaFaculty of Science and Engineering and Waseda Research Institute for Science and Engineering Waseda University 3‐4‐1 Okubo Shinjuku Tokyo 169–8555 JapanDepartment of Materials Process Engineering Graduate School of Engineering Nagoya University Nagoya Aichi 464–8603 JapanDepartment of Materials Process Engineering Graduate School of Engineering Nagoya University Nagoya Aichi 464–8603 JapanCollege of Mechanical and Electrical Engineering Shaanxi University of Science and Technology Xi'an 710021 ChinaAustralian Institute for Bioengineering and Nanotechnology (AIBN) The University of Queensland Queensland 4072 AustraliaCollege of Mechanical and Electrical Engineering Shaanxi University of Science and Technology Xi'an 710021 ChinaAustralian Institute for Bioengineering and Nanotechnology (AIBN) The University of Queensland Queensland 4072 AustraliaAustralian Institute for Bioengineering and Nanotechnology (AIBN) The University of Queensland Queensland 4072 AustraliaAbstract The remarkable properties of 2D nanomaterials are well known. However, their high interfacial adhesion energy often leads to restacking issues, limiting their potential in various applications. A strategic synthetic approach is presented to overcome this challenge. Specifically, the study first demonstrates the use of layered aluminosilicate as a sacrificial 2D template to allow the growth of highly ordered meso‐holey polymeric layers, which can be subsequently exfoliated upon the removal of aluminosilicate and thermally converted to perpendicularly open meso‐holey carbon (POMC). On the other hand, perpendicularly blocked meso‐holey carbon (PBMC) is obtained with non‐sacrificial 2D template of graphene oxide. When both POMC and PBMC are evaluated by operando hydrodynamic electrochemical impedance spectroscopy and transmission line model analysis for electrochemical reduction of oxygen, POMC achieves a remarkable improvement of charge transfer and mass transfer by up to 4.1 and 7.9 times, respectively, as compared to PBMC. This study therefore highlights the importance of perpendicularly open 2D nanoarchitectures in circumventing the restacking effect, offering valuable insights for leveraging 2D nanomaterials with open meso‐holes in various applications.https://doi.org/10.1002/advs.2024095462D carbonsaluminosilicatesmeso‐holey carbon nanosheetsmicellesopen Z‐axis passage |
| spellingShingle | Minjun Kim Hiroki Nara Yusuke Asakura Takashi Hamada Peng Yan Jacob Earnshaw Meng An Miharu Eguchi Yusuke Yamauchi End‐to‐End Pierced Carbon Nanosheets with Meso‐Holes Advanced Science 2D carbons aluminosilicates meso‐holey carbon nanosheets micelles open Z‐axis passage |
| title | End‐to‐End Pierced Carbon Nanosheets with Meso‐Holes |
| title_full | End‐to‐End Pierced Carbon Nanosheets with Meso‐Holes |
| title_fullStr | End‐to‐End Pierced Carbon Nanosheets with Meso‐Holes |
| title_full_unstemmed | End‐to‐End Pierced Carbon Nanosheets with Meso‐Holes |
| title_short | End‐to‐End Pierced Carbon Nanosheets with Meso‐Holes |
| title_sort | end to end pierced carbon nanosheets with meso holes |
| topic | 2D carbons aluminosilicates meso‐holey carbon nanosheets micelles open Z‐axis passage |
| url | https://doi.org/10.1002/advs.202409546 |
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