Journal
CRYSTAL GROWTH & DESIGN
Volume 19, Issue 3, Pages 1518-1524Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.cgd.9b00064
Keywords
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Funding
- National Natural Science Foundation of China [21875190, 21805227]
- Fundamental Research Funds for the Central Universities [3102017jc01001]
- Natural Science Foundation of Shandong Province [ZR2016BL04]
- Project of Shandong Province Higher Educational Science and Technology Program [J16LC06]
- Natural Science Basic Research Plan in Shaanxi Province of China [2018JC-008]
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The discovery of efficient electromagnetic wave absorbing materials for solving serious electromagnetic wave pollution is an urgent task. By rational design and assembly, a new three-dimensional metal-organic framework (MOP, CPT-1-Co) with the Co ions was constructed and employed as the precursor for the fabrication of Co/C composites via pyrolysis at high temperatures. The resultant Co/C composite pyrolyzed at 700 degrees C can absorb more than 90% of an EM wave at 2-18 GHz by the alternation of fabrication thickness. The effective absorption bandwidth can reach as high as 5.4 GHz at a thin thickness of 1.7 mm, which is superior to that of most EM wave absorbers. The bottom-up protocol in this report represents the first attempt to pyrolyze a new MOF for microwave absorber fabrication, which will provide valuable insight for designing more advanced MOFs and their applications in efficient electromagnetic wave absorption.
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