Synthesis of hexagonal-shaped Cr3C2@C nanoplatelets and role of their intrinsic properties towards microwave absorption

doi:10.1016/j.matlet.2021.129329

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	Synthesis of hexagonal-shaped Cr3C2@C nanoplatelets and role of their intrinsic properties towards microwave absorption
	Javid, Muhammad 2,3; Qu, Xinghao 3; Zhao, Yongpeng 2; Huang, Feirong 3; Farid, Amjad 1,2; Zhang, Hao 2; Shah, Asif 3; Sammed, Khan Abdul 2; Duan, Yuping 3; Zhang, Zhidong 4
刊名	MATERIALS LETTERS
	2021-04-01
卷号	288 页码:5
关键词	Nanocomposites Magnetism Defects Dielectrics Reflection loss
ISSN号	0167-577X
DOI	10.1016/j.matlet.2021.129329
通讯作者	Pan, Lujun(lpan@dlut.edu.cn) ; Dong, Xinglong(dognxl@dlut.edu.cn)
英文摘要	Core-shell nanomaterials have been considered excellent microwave absorbents due to their unique morphologies and designs. Here, hexagonal-shaped Cr3C2 nanoplatelets coated with carbon shells (Cr3C2@C) were fabricated by an arc discharge plasma process. In as-synthesized Cr3C2@C nanoplatelets a weak ferromagnetism is found with an observable coercivity of 38 Oe, a saturation magnetization of 4 x 10(-1)emu/g, and along with a suitable conductivity of 9.56 x 10(2) Omega(-1)cm(-1). The observed suitable electrical conductivity and inductive magnetism of Cr3C2@C nanoplatelets played a vital role as a magnetic and conductive losses. Intrinsic defect-rich Cr3C2 cores and amorphous carbon shells acted as dielectric polarization centers, wherein the incident electromagnetic wave dissipated through polarization and interfacial losses. The Cr3C2@C nanoplatelets with 30 wt% loadings in the paraffin matrix exhibited a minimum reflection loss of -36.9 dB at the thickness of 1.6 mm. The excellent refelection loss performance of Cr3C2@C nanoplatelets was certified to be a result from the synergetic effects of dielectric/magnetic losses and impedance matching. Furthermore, the Cr3C2@C nanoplatelets exhibited oxidation resistivity at 350 degrees C endorsing their application in harsh atmospheres. (C) 2021 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[51972039] ; National Natural Science Foundation of China[51331006] ; Liaoning Revitalization Talents Program[XLYC1902122]
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000656806100009
资助机构	National Natural Science Foundation of China ; Liaoning Revitalization Talents Program
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/160350]
专题	金属研究所_中国科学院金属研究所
通讯作者	Pan, Lujun; Dong, Xinglong
作者单位	1.Govt Coll Univ Faisalabad, Dept Phys, Faisalabad 38000, Pakistan 2.Dalian Univ Technol, Sch Phys, Dalian 116023, Peoples R China 3.Dalian Univ Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Mat Modificat Laser Ion & Electron Beams, Dalian 116023, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Javid, Muhammad,Qu, Xinghao,Zhao, Yongpeng,et al. Synthesis of hexagonal-shaped Cr3C2@C nanoplatelets and role of their intrinsic properties towards microwave absorption[J]. MATERIALS LETTERS,2021,288:5.
APA	Javid, Muhammad.,Qu, Xinghao.,Zhao, Yongpeng.,Huang, Feirong.,Farid, Amjad.,...&Dong, Xinglong.(2021).Synthesis of hexagonal-shaped Cr3C2@C nanoplatelets and role of their intrinsic properties towards microwave absorption.MATERIALS LETTERS,288,5.
MLA	Javid, Muhammad,et al."Synthesis of hexagonal-shaped Cr3C2@C nanoplatelets and role of their intrinsic properties towards microwave absorption".MATERIALS LETTERS 288(2021):5.