reduced graphene oxide powder for e ffi cient microwave absorption in the S-band ( 2 – 4 GHz ) †

State Key Laboratory of New Ceramics a Science and Engineering, Tsinghua Univ lvruitao@tsinghua.edu.cn Engineering Laboratory for Functionalized Shenzhen, Tsinghua University, Shenzhen 5 edu.cn Key Laboratory of Advanced Materials (M Engineering, Tsinghua University, Beijing 10 Beijing Institute of Aeronautical Materials † Electronic supplementary informa 10.1039/c7ra03215c Cite this: RSC Adv., 2017, 7, 25773