Facile fabrication of Fe/Fe3C@starch-derived hierarchical porous carbon for microwave absorption

被引：2

作者：

Hua, Wanlu ^{[1
]}

Hu, Chunyan ^{[1
]}

Xie, Xiaoli ^{[1
]}

Gou, Guangjun ^{[1
]}

机构：

[1] Southwest Univ Sci & Technol, Sch Mat & Chem, Mianyang, Sichuan, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2024年 / 35卷 / 02期

关键词：

BROAD-BAND; COMPOSITES; PERFORMANCE; NANOCOMPOSITES;

D O I：

10.1007/s10854-023-11830-8

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The three-dimensional (3D) porous carbon materials are helpful for forming thin, light-weight, wide effective absorption bandwidth and strong absorption intensity absorbers. However, previous methods were not environmentally friendly enough. Thus, in this work, the Fe/Fe3C@porous carbon was synthesized from soluble starch and Fe(NO3)(3)<middle dot>9H(2)O via chemical bowling and subsequent carbonization at 700 degrees C with different ratios. When the ratio of starch to Fe(NO3)(3)<middle dot>9H(2)O is 1:1.5, the porous carbon exhibits a strong absorption ability with minimum reflection loss (RLmin) value of -16.64 dB at 16.78 GHz, when the thickness is 1.75 mm and the proportion of paraffin wax is 30 wt%. The synergy of well impedance matching, sufficient loss performance, and interface polarization makes 3D porous carbon materials an excellent wave absorber. This work provides a good inspiration for studying outstanding performance microwave absorption materials.

引用

页数：13

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