Nanocellulose‐MXene biomimetic aerogels with orientation‐tunable electromagnetic interference shielding performance
Designing lightweight nanostructured aerogels for high‐performance electromagnetic interference (EMI) shielding is crucial yet challenging. Ultrathin cellulose nanofibrils (CNFs) are employed for assisting in building ultralow‐density, robust, and highly flexible transition metal carbides and nitrid...
| Main Authors: | , , , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2021
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/145653 |
| _version_ | 1826113805380222976 |
|---|---|
| author | Zeng, Zhihui Wang, Changxian Siqueira, Gilberto Han, Daxin Huch, Anja Abdolhosseinzadeh, Sina Heier, Jakob Nüesch, Frank Zhang, John Chuanfang Nyström, Gustav |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Zeng, Zhihui Wang, Changxian Siqueira, Gilberto Han, Daxin Huch, Anja Abdolhosseinzadeh, Sina Heier, Jakob Nüesch, Frank Zhang, John Chuanfang Nyström, Gustav |
| author_sort | Zeng, Zhihui |
| collection | NTU |
| description | Designing lightweight nanostructured aerogels for high‐performance electromagnetic interference (EMI) shielding is crucial yet challenging. Ultrathin cellulose nanofibrils (CNFs) are employed for assisting in building ultralow‐density, robust, and highly flexible transition metal carbides and nitrides (MXenes) aerogels with oriented biomimetic cell walls. A significant influence of the angles between oriented cell walls and the incident EM wave electric field direction on the EMI shielding performance is revealed, providing an intriguing microstructure design strategy. MXene “bricks” bonded by CNF “mortars” of the nacre‐like cell walls induce high mechanical strength, electrical conductivity, and interfacial polarization, yielding the resultant MXene/CNF aerogels an ultrahigh EMI shielding performance. The EMI shielding effectiveness (SE) of the aerogels reaches 74.6 or 35.5 dB at a density of merely 8.0 or 1.5 mg cm–3, respectively. The normalized surface specific SE is up to 189 400 dB cm2 g–1, significantly exceeding that of other EMI shielding materials reported so far. |
| first_indexed | 2024-10-01T03:28:54Z |
| format | Journal Article |
| id | ntu-10356/145653 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:28:54Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1456532023-07-14T16:00:25Z Nanocellulose‐MXene biomimetic aerogels with orientation‐tunable electromagnetic interference shielding performance Zeng, Zhihui Wang, Changxian Siqueira, Gilberto Han, Daxin Huch, Anja Abdolhosseinzadeh, Sina Heier, Jakob Nüesch, Frank Zhang, John Chuanfang Nyström, Gustav School of Materials Science and Engineering Engineering::Materials Aerogels Cellullose Nanofibrils Designing lightweight nanostructured aerogels for high‐performance electromagnetic interference (EMI) shielding is crucial yet challenging. Ultrathin cellulose nanofibrils (CNFs) are employed for assisting in building ultralow‐density, robust, and highly flexible transition metal carbides and nitrides (MXenes) aerogels with oriented biomimetic cell walls. A significant influence of the angles between oriented cell walls and the incident EM wave electric field direction on the EMI shielding performance is revealed, providing an intriguing microstructure design strategy. MXene “bricks” bonded by CNF “mortars” of the nacre‐like cell walls induce high mechanical strength, electrical conductivity, and interfacial polarization, yielding the resultant MXene/CNF aerogels an ultrahigh EMI shielding performance. The EMI shielding effectiveness (SE) of the aerogels reaches 74.6 or 35.5 dB at a density of merely 8.0 or 1.5 mg cm–3, respectively. The normalized surface specific SE is up to 189 400 dB cm2 g–1, significantly exceeding that of other EMI shielding materials reported so far. Published version 2021-01-04T01:03:55Z 2021-01-04T01:03:55Z 2020 Journal Article Zeng, Z., Wang, C., Siqueira, G., Han, D., Huch, A., Abdolhosseinzadeh, S., . . . Nyström, G. (2020). Nanocellulose‐MXene biomimetic aerogels with orientation‐tunable electromagnetic interference shielding performance. Advanced Science, 7(15), 2000979-. doi:10.1002/advs.202000979 2198-3844 https://hdl.handle.net/10356/145653 10.1002/advs.202000979 32775169 15 7 en Advanced Science © 2020 The Authors. Published by WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. application/pdf |
| spellingShingle | Engineering::Materials Aerogels Cellullose Nanofibrils Zeng, Zhihui Wang, Changxian Siqueira, Gilberto Han, Daxin Huch, Anja Abdolhosseinzadeh, Sina Heier, Jakob Nüesch, Frank Zhang, John Chuanfang Nyström, Gustav Nanocellulose‐MXene biomimetic aerogels with orientation‐tunable electromagnetic interference shielding performance |
| title | Nanocellulose‐MXene biomimetic aerogels with orientation‐tunable electromagnetic interference shielding performance |
| title_full | Nanocellulose‐MXene biomimetic aerogels with orientation‐tunable electromagnetic interference shielding performance |
| title_fullStr | Nanocellulose‐MXene biomimetic aerogels with orientation‐tunable electromagnetic interference shielding performance |
| title_full_unstemmed | Nanocellulose‐MXene biomimetic aerogels with orientation‐tunable electromagnetic interference shielding performance |
| title_short | Nanocellulose‐MXene biomimetic aerogels with orientation‐tunable electromagnetic interference shielding performance |
| title_sort | nanocellulose mxene biomimetic aerogels with orientation tunable electromagnetic interference shielding performance |
| topic | Engineering::Materials Aerogels Cellullose Nanofibrils |
| url | https://hdl.handle.net/10356/145653 |
| work_keys_str_mv | AT zengzhihui nanocellulosemxenebiomimeticaerogelswithorientationtunableelectromagneticinterferenceshieldingperformance AT wangchangxian nanocellulosemxenebiomimeticaerogelswithorientationtunableelectromagneticinterferenceshieldingperformance AT siqueiragilberto nanocellulosemxenebiomimeticaerogelswithorientationtunableelectromagneticinterferenceshieldingperformance AT handaxin nanocellulosemxenebiomimeticaerogelswithorientationtunableelectromagneticinterferenceshieldingperformance AT huchanja nanocellulosemxenebiomimeticaerogelswithorientationtunableelectromagneticinterferenceshieldingperformance AT abdolhosseinzadehsina nanocellulosemxenebiomimeticaerogelswithorientationtunableelectromagneticinterferenceshieldingperformance AT heierjakob nanocellulosemxenebiomimeticaerogelswithorientationtunableelectromagneticinterferenceshieldingperformance AT nueschfrank nanocellulosemxenebiomimeticaerogelswithorientationtunableelectromagneticinterferenceshieldingperformance AT zhangjohnchuanfang nanocellulosemxenebiomimeticaerogelswithorientationtunableelectromagneticinterferenceshieldingperformance AT nystromgustav nanocellulosemxenebiomimeticaerogelswithorientationtunableelectromagneticinterferenceshieldingperformance |