Affiliation of Author(s):材料科学与技术学院
Journal:JOURNAL OF ALLOYS AND COMPOUNDS
Key Words:MOFs MIL-125 (Ti) Microwave absorption Dielectric loss Lightweight
Abstract:Nanoporous carbon materials derived from metal organic frameworks (MOFs) have been regarded as an important members in the microwave absorption field. Nevertheless, most attentions only focus on Cobased, Ni-based MOFs and the impedance matching. In this study, a novel nanoporous carbon material (TiO2/C) has been directly synthesized by annealing titanium based MOFs (MIL-125 (Ti), MIL stands for Material from Institute Lavoisier), which possess low toxicity, redox activity and good stability. The obtained TiO2/C composites show outstanding electromagnetic wave absorbing properties. In detail, the minimum reflection loss of -49.6 dB and broad effective bandwidth of 4.6 GHz (13.4-18 GHz) can be reached with an absorbent thickness of 1.6 mm. Our study not only opens a new avenue for artificially designed diverse nanoporous carbon but also introduce a new candidate to directly synthesize absorber by a simple method. (C) 2017 Elsevier B.V. All rights reserved.
ISSN No.:0925-8388
Translation or Not:no
Date of Publication:2017-12-25
Co-author:马建娜,刘伟,lw,梁小会,权斌,成岩,孟卫
Correspondence Author:jiguangbin