Mxenes Derived Laminated and Magnetic Composites with Excellent Microwave Absorbing Performance

被引：62

作者：

Feng, Wanlin ^{[1
]}

Luo, Heng ^{[2
]}

Wang, Yu ^{[1
]}

Zeng, Sifan ^{[1
]}

Tan, Yongqiang ^{[1
]}

Deng, Lianwen ^{[2
]}

Zhou, Xiaosong ^{[1
]}

Zhang, Haibin ^{[1
]}

Peng, Shuming ^{[1
]}

机构：

[1] China Acad Engn Phys, Inst Nucl Phys & Chem, Innovat Res Team Adv Ceram, Mianyang 621900, Peoples R China

[2] Cent South Univ, Inst Super Microstruct & Ultrafast Proc Adv Mat, Sch Phys & Elect, Changsha 410083, Hunan, Peoples R China

来源：

SCIENTIFIC REPORTS | 2019年 / 9卷 / 1期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

WAVE ABSORPTION PROPERTIES; PHASE-CONTROLLED SYNTHESIS; GRAPHENE OXIDE; DECORATED GRAPHENE; FE3O4; NANOCRYSTALS; IONIC LIQUID; TI3C2; MXENE; CARBON; INTERFERENCE; NANOCOMPOSITES;

D O I：

10.1038/s41598-019-40336-9

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Two dimensional materials have been widely identified as promising microwave absorbers, owing to their large surface area and abundant interfaces. Here, a novel laminated and magnetic composite derived from Mxene was designed and successfully synthesized via facile hydrothermal oxidization of nickel ion intercalated Ti3C2. Highly disordered carbon sheets were obtained by low temperature hydrothermal oxidization, and the in-situ produced TiO2 and NiO nanoparticles embedded closely between them. This layered hybrid exhibits excellent microwave absorbing performance with an effective absorbing bandwidth as high as 11.1 GHz (6.9-18 GHz) and 9 GHz (9-18 GHz) when the thickness is 3 and 2 mm, respectively. Besides the high dielectric loss, magnetic loss and ohmic loss of the composite, the amorphous nature of obtained carbon sheets and multi-reflections between them are believed to play a decisive role in achieving such superior microwave absorbing performance.

引用

页数：10

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