Shenyang University of Technology
Crystal Structure Design and Elucidation; Electromagnetic wave absorbing material; Composite.
Fa-Nian Shi, Ph. D., professor of Shenyang University of Technology, supervisor, member of Energy and Environment Committee of China Energy Society, executive director of the first Board of Directors of the National for the Development of New Materials and Technology. From 1991 to 1996, studied for his master and doctor's degrees in the National Key Laboratory of Rare Earth Resources Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; from 1996 to 2001, worked in the National Key Laboratory of Coordination Chemistry, Nanjing University for postdoctoral research and teaching (associate professor) at Nanjing Normal University; and from 2001 to 2014, worked as a postdoctoral and research fellow in the Department of Chemistry, Aveiro University, Portugal. At present, the main research areas include: design and structure optimization of metal complex materials, composite materials, lithium ion battery materials, photocatalysts, absorbing materials and so on. More than 130 academic papers were published, of which more than 120 were SCI indexed, including Journal of the American Chemical Society, Chemcomm, Acs Sustainable Chemistry & Engineering etc. Presided over the National Natural Science Foundation of China project, Liaoning Province Department of Education key project. As President of the Conference, the International Conference on New Materials was successfully held at Shenyang University of Technology in September 2019(NMS-XV IUPAC).
Design of MOFs and their derivative oxides for electromagnetic wave absorption
Metal organic fromeworks (MOFs) are a type of crystalline materials that own ordered structures, porosity, controlable morphology, and easy to preparation. MOFs can be used as precursors for preparation of their oxide derivatives that often keep the in-situ morphology of the MOFs.
Herein, CoC2O4 and MnFe-based 3,5-pyrazole carboxylate MOFs have been prepared via hydrothermal synthesis. The oxides of Co3O4 and MnFe2O4 were obtained via pyrolysis of the MOFs. MnFe2O4/G-5 and MnFe2O4/G-10 samples were obtained in a vacuum environment at 700℃. From the results of the absorption, it shows that both CoC2O4 and FeMn-MOF/carbon-based derivatives are all effective electromagnetic wave absorption materials; and among them, 35PFeMn/G-10 derivative composite material MnFe2O4/G-10 shows a maximum reflection loss (RL) of -30.26 dB, with the thickness of 2 mm at a frequency of 11.5GHz and nano ribon Co3O4 has the maximum RL value is -44 dB at 13 GHz with the thickness of 6 mm.