Synthesis of nitrogen-doped graphene wrapped SnO2 hollow spheres as high-performance microwave absorbers

被引：24

作者：

Dai, Weiyong ^{[1
]}

Luo, Hui ^{[2
]}

Chen, Fu ^{[2
]}

Wang, Xian ^{[1
]}

Xiong, Ying ^{[1
]}

Cheng, Yongzhi ^{[2
]}

Gong, Rongzhou ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Hubei, Peoples R China

[2] Wuhan Univ Sci & Technol, Sch Informat Sci & Engn, Wuhan 430081, Hubei, Peoples R China

来源：

RSC ADVANCES | 2019年 / 9卷 / 19期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

ONE-POT SYNTHESIS; ABSORPTION PROPERTIES; FACILE SYNTHESIS; COMPOSITES; NANOCOMPOSITES; NANOCRYSTALS; POLYANILINE; FABRICATION; HYBRID; ARRAYS;

D O I：

10.1039/c9ra01556f

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nitrogen-doped graphene (NG)/SnO2 hollow sphere hybrids were synthesized in this work. The chemical composition, crystal structure and morphology have been characterized by FT-IR spectra, XRD, Raman spectra, XPS, SEM and TEM in detail. Reflection loss (RL) values of NG/SnO2 hollow sphere hybrids less than -10 dB and -20 dB are found in the wide frequency range of 4.5-18 GHz and 5-16.2 GHz within 1.3-3.5 mm, and a minimum RL of -50.3 dB is achieved at 8.6 GHz with the matching thickness of only 2.3 mm. The results indicate that the NG/SnO2 hollow sphere hybrids with high-performance microwave absorption properties have a promising future in decreasing electromagnetic wave irradiation and interference.

引用

页码：10745 / 10753

页数：9

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