Dr. Ruiwen Shu, Associate Professor, School of Chemical Engineering, Anhui University of Science and Technology, China

Biography: Dr. Ruiwen Shu, Associate Professor, Master Tutor, School of Chemical Engineering, Anhui University of Science and Technology, China. In June 2014, he received the PhD in polymer chemistry and physics from the South China University of Technology. In July of the same year, he joined the School of Chemical Engineering of Anhui University of Science and Technology. Currently, he is responsible for the National Natural Science Foundation of China (Grant No. 51507003), the Lift Engineering of Young Talents and Doctor’s Start-up Research Foundation of Anhui University of Science and Technology (Grant No. ZY537). He had published 16 SCI papers as the first author or correspondence author in the domestic and international academic journals, such as Chemical Engineering Journal, Journal of Colloid and Interface Science, Journal of Alloys and Compounds, Materials Letters, Colloids and Surfaces A, Soft Materials, NANO, Chemical Journal of Chinese University-Chinese.

Title: Carbon-based hybrid composites as high-performance electromagnetic wave absorbers: facile fabrication and their underlying absorbing mechanism

Abstract: Electromagnetic interference and pollution problems are increasingly serious owing to the wide use of electronic equipment and devices. In this regard, the high-performance electromagnetic wave (EMW) absorption materials have drawn much attention as an efficient strategy to solve these problems. Carbon-based materials (reduced graphene oxide (RGO), multi-walled carbon nanotubes (MWCNTs), carbon fibers, etc.) have attracted considerable attention for electromagnetic absorption due to their high permittivity, low density and superior thermal stability. However, the microwave absorption performance of sole RGO or MWCNTs is poor owing to their bad impedance matching as well as single dielectric loss mechanism. Recently, we have fabricated a series of RGO or MWCNTs-based hybrid composites and further investigated the relationship between structure and EMW absorption performance. Results demonstrated that the as-prepared hybrid composites could be used as ideal candidates for EMW absorbers with the characteristics of thin thickness, broad bandwidth and strong absorption. Besides, our research provides a good reference for the design and fabrication of other carbon-based materials as high-performance EMW absorbers.

Keywords: Carbon-based materials; Reduced graphene oxide; Multi-walled carbon nanotubes; Hybrid composites; Electromagnetic absorption