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Title: Achieving superior electromagnetic wave absorbers through the novel metal-organic frameworks derived magnetic porous carbon nanorods

Abstract

High absorption capacity and broad absorption bandwidth electromagnetic wave (EMW) absorption materials (namely, EMW absorbers) are highly desirable due to the interference with electronics and harms on human beings’ health. In search for rational design on nanostructured absorbers, we have synthesized and demonstrated the rod-shape composites with Fe-containing magnetic nanoparticles (Fe 3O 4, Fe 3C and Fe NPs) embedded into nano-porous carbon (NPC) through pyrolysis of Fe-based metal-organic frameworks (MOFs). The morphologies, compositions, and graphitization degree of the Fe-MOFs derived magnetic NPC nanorods can be effectively controlled via adjusting the pyrolysis temperatures. The graphitization level has a significant influence on the permittivity of the composites upon variation of pyrolysis temperatures, thereby a tunable electromagnetic wave (EMW) absorption is observed. Consequently, the resulting magnetic NPC nanorods obtained at pyrolysis temperature of 600 and 700 °C exhibit the most remarkable EMW absorption performance with a strong reflection loss of -52.9 dB and broad effective bandwidth (f e) of 4.64 GHz at 3.07 mm. With a thickness of 3.5 mm, the f e for the magnetic NPC nanorods at 600 °C covers the whole X-band from 7.92 to 12.48 GHz. Finally, the noticeable EMW absorption performances have been greatly enhanced compared to thosemore » reported Fe 3O 4 based absorbers, owing to the synergy of multiple components and the porous structures inherited from MOFs.« less

Authors:
 [1];  [2];  [3];  [3]; ORCiD logo [3];  [4];  [5]; ORCiD logo [6]; ORCiD logo [7];  [8]
  1. Shandong Univ., Jinan (China). Key Lab. for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education and School of Materials Science and Engineering; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemical & Biomolecular Engineering, Integrated Composites Lab. (ICL)
  2. Shandong Univ., Jinan (China). Key Lab. for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education and School of Materials Science and Engineering; Shandong Univ., Shandong (China). State Key Lab. of Crystal Materials
  3. Shandong Univ., Jinan (China). Key Lab. for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education and School of Materials Science and Engineering
  4. Shandong Univ., Shandong (China). State Key Lab. of Crystal Materials
  5. Shandong Univ. of Science and Technology, Qingdao (China). College of Chemical and Environmental Engineering
  6. Zhengzhou Univ., Zhengzhou (China). National Engineering Research Center for Advanced Polymer Processing Technology
  7. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Science (CNMS)
  8. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemical & Biomolecular Engineering, Integrated Composites Lab. (ICL)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Natural Science Foundation of China (NNSFC)
OSTI Identifier:
1493128
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Carbon
Additional Journal Information:
Journal Volume: 145; Journal Issue: C; Journal ID: ISSN 0008-6223
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE

Citation Formats

Wu, Nannan, Xu, Dongmei, Wang, Zhou, Wang, Fenglong, Liu, Jiurong, Liu, Wei, Shao, Qian, Liu, Hu, Gao, Qiang, and Guo, Zhanhu. Achieving superior electromagnetic wave absorbers through the novel metal-organic frameworks derived magnetic porous carbon nanorods. United States: N. p., 2019. Web. doi:10.1016/j.carbon.2019.01.028.
Wu, Nannan, Xu, Dongmei, Wang, Zhou, Wang, Fenglong, Liu, Jiurong, Liu, Wei, Shao, Qian, Liu, Hu, Gao, Qiang, & Guo, Zhanhu. Achieving superior electromagnetic wave absorbers through the novel metal-organic frameworks derived magnetic porous carbon nanorods. United States. doi:10.1016/j.carbon.2019.01.028.
Wu, Nannan, Xu, Dongmei, Wang, Zhou, Wang, Fenglong, Liu, Jiurong, Liu, Wei, Shao, Qian, Liu, Hu, Gao, Qiang, and Guo, Zhanhu. Mon . "Achieving superior electromagnetic wave absorbers through the novel metal-organic frameworks derived magnetic porous carbon nanorods". United States. doi:10.1016/j.carbon.2019.01.028.
@article{osti_1493128,
title = {Achieving superior electromagnetic wave absorbers through the novel metal-organic frameworks derived magnetic porous carbon nanorods},
author = {Wu, Nannan and Xu, Dongmei and Wang, Zhou and Wang, Fenglong and Liu, Jiurong and Liu, Wei and Shao, Qian and Liu, Hu and Gao, Qiang and Guo, Zhanhu},
abstractNote = {High absorption capacity and broad absorption bandwidth electromagnetic wave (EMW) absorption materials (namely, EMW absorbers) are highly desirable due to the interference with electronics and harms on human beings’ health. In search for rational design on nanostructured absorbers, we have synthesized and demonstrated the rod-shape composites with Fe-containing magnetic nanoparticles (Fe3O4, Fe3C and Fe NPs) embedded into nano-porous carbon (NPC) through pyrolysis of Fe-based metal-organic frameworks (MOFs). The morphologies, compositions, and graphitization degree of the Fe-MOFs derived magnetic NPC nanorods can be effectively controlled via adjusting the pyrolysis temperatures. The graphitization level has a significant influence on the permittivity of the composites upon variation of pyrolysis temperatures, thereby a tunable electromagnetic wave (EMW) absorption is observed. Consequently, the resulting magnetic NPC nanorods obtained at pyrolysis temperature of 600 and 700 °C exhibit the most remarkable EMW absorption performance with a strong reflection loss of -52.9 dB and broad effective bandwidth (fe) of 4.64 GHz at 3.07 mm. With a thickness of 3.5 mm, the fe for the magnetic NPC nanorods at 600 °C covers the whole X-band from 7.92 to 12.48 GHz. Finally, the noticeable EMW absorption performances have been greatly enhanced compared to those reported Fe3O4 based absorbers, owing to the synergy of multiple components and the porous structures inherited from MOFs.},
doi = {10.1016/j.carbon.2019.01.028},
journal = {Carbon},
number = C,
volume = 145,
place = {United States},
year = {2019},
month = {4}
}

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