Two-dimensional nanosheets Co9S8-DETA hybrid materials toward enhanced electromagnetic wave absorption

被引：19
作者：
Hua, An [1 ]
Ma, Lin [1 ]
Li, Bo [1 ,2 ]
Li, Yong [1 ]
Bai, Guo [1 ,2 ]
Liu, Daheng [1 ,2 ]
Li, Da [1 ]
Li, Bing [1 ]
Jiang, Haichang [3 ]
Ma, Song [1 ]
Zhang, Zhidong [1 ]
机构：
[1] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
[2] Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China
[3] Binzhou Inst Technol, Shandong Key Lab Adv Aluminium Mat & Technol, Weiqiao UCAS Sci & Technol Pk, Binzhou 256606, Shandong Provin, Peoples R China
来源：
MATERIALS RESEARCH BULLETIN | 2024年 / 174卷
基金：
中国国家自然科学基金;
关键词：
Electromagnetic wave absorption; Two-dimensional materials; Hybrid material; HIGHLY EFFICIENT; MICROWAVE-ABSORPTION; LIGHTWEIGHT; COMPOSITES; FRAMEWORK; TRANSFORMATION; ULTRATHIN;
D O I：
10.1016/j.materresbull.2024.112714
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Co9S8-DETA organic -inorganic hybrid materials synthesized by hydrothermal method show an enhanced electromagnetic wave (EMW) absorption performance because of its unique two-dimensional (2D) structure and EMW properties regulated by the interface structure. Using Co9S8-DETA as a precursor, the organic intercalation DETA can be removed by heat treatment to obtain inorganic Co9S8. Compared with Co9S8 inorganic, Co9S8-DETA hybrid material assembled in a paraffin matrix with 30 wt.% shows an excellent EMW absorption performance. The minimum reflection loss at 4.2 GHz frequency reaches -41.6 dB and the effective absorption bandwidth is 4.1 GHz with a thickness of only 1.6 mm. The enhanced EMW absorption property of Co9S8-DETA organic -inorganic hybrid materials expands the idea of EMW property control of EMW absorbing materials by adjusting the structural characteristics of organic -inorganic hybrid materials.
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页数：8
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