Lightweight Cellulose Nanofibril/Reduced Graphene Oxide Aerogels with Unidirectional Pores for Efficient Electromagnetic Interference Shielding
Abstract Lightweight and compressible aerogels have been widely considered as promising materials for electromagnetic interference (EMI) shielding. Herein, a lightweight cellulose nanofibril/reduced graphene oxide carbon aerogel fabricated by unidirectional freeze‐drying and pyrolysis processes is r...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley-VCH
2021-12-01
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| Series: | Advanced Materials Interfaces |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/admi.202101437 |
| _version_ | 1827885530670432256 |
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| author | Mengmeng Li Fuyi Han Shuai Jiang Meiling Zhang Qiuyu Xu Jianhua Zhu Aixiong Ge Lifang Liu |
| author_facet | Mengmeng Li Fuyi Han Shuai Jiang Meiling Zhang Qiuyu Xu Jianhua Zhu Aixiong Ge Lifang Liu |
| author_sort | Mengmeng Li |
| collection | DOAJ |
| description | Abstract Lightweight and compressible aerogels have been widely considered as promising materials for electromagnetic interference (EMI) shielding. Herein, a lightweight cellulose nanofibril/reduced graphene oxide carbon aerogel fabricated by unidirectional freeze‐drying and pyrolysis processes is reported. The results show that the aerogels with unidirectionally aligned pores possess better compression resilience and EMI shielding performance in the radial direction. The unidirectional aerogel with low density (≈0.0058 g cm−3) exhibits a high EMI shielding effectiveness (SE) of ≈33 dB at 8.2–12.4 GHz and a specific EMI SE of 5759 dB cm3 g−1. Therefore, the fabricated aerogel demonstrates a promising potential in the field of next‐generation EMI shielding materials. |
| first_indexed | 2024-03-12T19:48:06Z |
| format | Article |
| id | doaj.art-59750c2453b54972a7bc4425056133be |
| institution | Directory Open Access Journal |
| issn | 2196-7350 |
| language | English |
| last_indexed | 2024-03-12T19:48:06Z |
| publishDate | 2021-12-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Materials Interfaces |
| spelling | doaj.art-59750c2453b54972a7bc4425056133be2023-08-02T03:24:30ZengWiley-VCHAdvanced Materials Interfaces2196-73502021-12-01824n/an/a10.1002/admi.202101437Lightweight Cellulose Nanofibril/Reduced Graphene Oxide Aerogels with Unidirectional Pores for Efficient Electromagnetic Interference ShieldingMengmeng Li0Fuyi Han1Shuai Jiang2Meiling Zhang3Qiuyu Xu4Jianhua Zhu5Aixiong Ge6Lifang Liu7College of Textiles Donghua University Shanghai 201620 ChinaCollege of Textiles Donghua University Shanghai 201620 ChinaCollege of Textiles Donghua University Shanghai 201620 ChinaCollege of Textiles Donghua University Shanghai 201620 ChinaCollege of Textiles Donghua University Shanghai 201620 ChinaCollege of Textiles Donghua University Shanghai 201620 ChinaJihua Group Corporation Limited Beijing 100020 ChinaCollege of Textiles Donghua University Shanghai 201620 ChinaAbstract Lightweight and compressible aerogels have been widely considered as promising materials for electromagnetic interference (EMI) shielding. Herein, a lightweight cellulose nanofibril/reduced graphene oxide carbon aerogel fabricated by unidirectional freeze‐drying and pyrolysis processes is reported. The results show that the aerogels with unidirectionally aligned pores possess better compression resilience and EMI shielding performance in the radial direction. The unidirectional aerogel with low density (≈0.0058 g cm−3) exhibits a high EMI shielding effectiveness (SE) of ≈33 dB at 8.2–12.4 GHz and a specific EMI SE of 5759 dB cm3 g−1. Therefore, the fabricated aerogel demonstrates a promising potential in the field of next‐generation EMI shielding materials.https://doi.org/10.1002/admi.202101437cellulose nanofibrilcomposite aerogelelectromagnetic interference shieldinggrapheneunidirectionally porous structure |
| spellingShingle | Mengmeng Li Fuyi Han Shuai Jiang Meiling Zhang Qiuyu Xu Jianhua Zhu Aixiong Ge Lifang Liu Lightweight Cellulose Nanofibril/Reduced Graphene Oxide Aerogels with Unidirectional Pores for Efficient Electromagnetic Interference Shielding Advanced Materials Interfaces cellulose nanofibril composite aerogel electromagnetic interference shielding graphene unidirectionally porous structure |
| title | Lightweight Cellulose Nanofibril/Reduced Graphene Oxide Aerogels with Unidirectional Pores for Efficient Electromagnetic Interference Shielding |
| title_full | Lightweight Cellulose Nanofibril/Reduced Graphene Oxide Aerogels with Unidirectional Pores for Efficient Electromagnetic Interference Shielding |
| title_fullStr | Lightweight Cellulose Nanofibril/Reduced Graphene Oxide Aerogels with Unidirectional Pores for Efficient Electromagnetic Interference Shielding |
| title_full_unstemmed | Lightweight Cellulose Nanofibril/Reduced Graphene Oxide Aerogels with Unidirectional Pores for Efficient Electromagnetic Interference Shielding |
| title_short | Lightweight Cellulose Nanofibril/Reduced Graphene Oxide Aerogels with Unidirectional Pores for Efficient Electromagnetic Interference Shielding |
| title_sort | lightweight cellulose nanofibril reduced graphene oxide aerogels with unidirectional pores for efficient electromagnetic interference shielding |
| topic | cellulose nanofibril composite aerogel electromagnetic interference shielding graphene unidirectionally porous structure |
| url | https://doi.org/10.1002/admi.202101437 |
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