Ultralight, super-elastic and volume-preserving cellulose fiber/graphene aerogel for high-performance electromagnetic interference shielding
Publication in refereed journal

替代計量分析
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其它資訊
摘要Ultralight cellulose fiber/thermally reduced graphene oxide (CF/RGO) hybrid aerogel with super elasticity and excellent electromagnetic interference (EMI) shielding capability was fabricated through lyophilization and carbonization process. CF/RGO aerogel with 5 mm thickness exhibits high EMI shielding effectiveness (SE) of similar to 47.8 dB after annealing at 1000 degrees C with 5% hydrogen -argon mixture atmosphere. The superior SE is mainly ascribed to the cellular structure and good electrical conductivity of aerogel. The density of CF/RGO aerogel is as low as 2.83 mg/cm(3), leading to ultrahigh specific shielding effectiveness (up to 33780 dB cm(2)/g). The volume/shape of obtained monolithic carbon material can be preserved very well after thermal treatment. The effects of RGO content and annealing conditions on EMI shielding and mechanical properties were investigated. Moreover, the hybrid aerogel possesses excellent mechanical resilience even with large strain (80% reversible compressibility) and outstanding cycling stability. In addition, adjustable EMI shielding capability could be realized by simple mechanical compression. These results demonstrate a promising and facile approach to fabricate low-cost and volume-preserving porous carbon material with superior and tunable EMI shielding performance for potential applications in aerospace and wearable electronic devices.
出版社接受日期16.01.2017
著者Yan-Jun Wan, Peng-Li Zhu, Shu-Hui Yu, Rong Sun, Ching-Ping Wong, Wei-Hsin Liao
期刊名稱Carbon
出版年份2017
月份5
卷號115
出版社PERGAMON-ELSEVIER SCIENCE LTD
頁次629 - 639
國際標準期刊號0008-6223
電子國際標準期刊號1873-3891
語言英式英語
Web of Science 學科類別Chemistry, Physical;Materials Science, Multidisciplinary;Chemistry;Materials Science

上次更新時間 2020-18-10 於 02:31