摘要
Developing a flexible,light-weight and effective electromagnetic(EM)absorber remains challenging despite being on increasing demand as more wearable devices and portable electronics are commercialized.Herein,we report a flexible and lightweight hybrid paper by a facile vacuumfiltration-induced self-assembly process,in which cotton-derived carbon fibers serve as flexible skeletons,compactly surrounded by other microwave-attenuating components(reduced graphene oxide and Fe3O4@C nanowires).Owing to its unique architecture and synergy of the three components,the asprepared hybrid paper exhibits flexible and lightweight features as well as superb microwave absorption performance.Maximum absorption intensity with reflection loss as low as-63 dB can be achieved,and its broadest frequency absorption bandwidth of 5.8 GHz almost covers the entire Ku band.Such a hybrid paper is promising to cope with ever-increasing EM interference.The work also paves the way to develop low-cost and flexible EM wave absorber from biomass through a facile method.
基金
financial support from National Natural Science Foundation of China(No.:51971111)
the National Research Foundation,Prime Minister’s Office,Singapore under its Campus for Research Excellence and Technological Enterprise(CREATE)program
the Funding for Outstanding Doctoral Dissertation in NUAA(No.BCXJ17-07)
Postgraduate Research&Practice Innovation of Jiangsu Province(KYCX17_0252)
the Open Research Fund of Jiangsu Provincial Key Laboratory of Bionic Functional Materials。
