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所属单位：材料科学与技术学院
发表刊物：ACS SUSTAINABLE CHEMISTRY & ENGINEERING
关键字：Flexible EM wave absorber Elevated temperature Sulfur-doped hollow carbon sphere Polarization loss Lightweight
摘要：Currently, the electromagnetic (EM) wave absorbers usually suffer severe performance degradation when they work for a while due to the generated heat issue. Developing a high-performance EM absorber with flexibility and adjustability that can effectively absorb the EM energy and convert into thermal energy at elevated temperature is highly desired but still remains a significant challenge. Herein, we demonstrate S-doped hollow carbon nanospheres used as fillers to fabricate a flexible and controllable EM absorber toward this challenge. Owing to the insertion of S-based polar groups in the graphitization area of carbon spheres, this EM absorber exhibits outstanding electromagnetic wave absorption capability with elimination of X-band EM wave performance at a temperature range of 298-423 K. Almost 90% of the X-band EM wave can be dissipated at 373 K, while the effective absorption rate of 75% can still be achieved at 423 K.
ISSN号：2168-0485
是否译文：否
发表时间：2018-02-01
合写作者：Lv, Hualiang,Guo, Yuhan,Guo, Tengchao,Wu, Hongjing,Liu, Gu,Wang, Liuying,Wu, Renbing
通讯作者：杨志鸿,Wu, Renbing,杨志鸿