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Space-Confined Synthesis of Core-Shell BaTiO3@Carbon Microspheres as a High-Performance Binary Dielectric System for Microwave Absorption

文献类型：期刊论文

作者Cui, Liru3; Tian, Chunhua1; Tang, Linlong2; Han, Xijiang3; Wang, Yahui3; Liu, Dawei3; Xu, Ping3; Li, Chaolong2; Du, Yunchen3
刊名ACS APPLIED MATERIALS & INTERFACES
出版日期2019-08-28
卷号11期号:34页码:31182-31190
关键词BaTiO3@carbon microspheres core-shell configuration interfacial polarization microwave absorption durable performance
ISSN号1944-8244
DOI10.1021/acsami.9b09779
通讯作者Han, Xijiang(hanxijiang@hit.edu.cn) ; Li, Chaolong(lichaolong@cigit.ac.cn) ; Du, Yunchen(yunchendu@hit.edu.cn)
英文摘要Binary dielectric composites are viewed as a kind of promising candidate for conventional magnetic materials in the field of microwave absorption. Herein, we demonstrate the successful fabrication of core-shell BaTiO3@carbon microspheres through a space-confined strategy. The electromagnetic properties of BaTiO3@carbon microspheres can be easily tailored by manipulating the relative content of carbon shells. It is confirmed that dielectric loss of these composites mainly benefits from conductivity loss, dipole orientation polarization, and interfacial polarization, and the core-shell configuration shows its positive contribution to the reinforcement of interfacial polarization. When the content of carbon shells is optimized, the as-obtained composite will display excellent microwave-absorption performance due to decent attenuation and well-matched impedance. The strongest reflection loss can reach up to -88.5 dB at 6.9 GHz with the absorber thickness of 3.0 mm, and the qualified bandwidth below those of most typical binary dielectric systems. More importantly, these BaTiO3@carbon microspheres maintain good performance after being treated under high-temperature and acidic conditions for a long time, manifesting their promising prospect for practical application. It is believed that these results may be helpful for the development of multicomponent dielectric systems as high-performance microwave absorbing materials.
资助项目Natural Science Foundation of China[21676065] ; Natural Science Foundation of China[21776053] ; Natural Science Foundation of China[21571043]
WOS研究方向Science & Technology - Other Topics ; Materials Science
语种英语
WOS记录号WOS:000484073400075
出版者AMER CHEMICAL SOC
源URL[http://119.78.100.138/handle/2HOD01W0/9581]  
专题中国科学院重庆绿色智能技术研究院
通讯作者Han, Xijiang; Li, Chaolong; Du, Yunchen
作者单位1.Lingnan Normal Univ, Sch Phys Sci & Technol, Zhanjiang 524048, Peoples R China
2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
3.Harbin Inst Technol, Sch Chem & Chem Engn, MIIT Key Lab Crit Mat Technol New Energy Convers, Harbin 150001, Heilongjiang, Peoples R China
推荐引用方式
GB/T 7714		 Cui, Liru,Tian, Chunhua,Tang, Linlong,et al. Space-Confined Synthesis of Core-Shell BaTiO3@Carbon Microspheres as a High-Performance Binary Dielectric System for Microwave Absorption[J]. ACS APPLIED MATERIALS & INTERFACES,2019,11(34):31182-31190.
APA Cui, Liru.,Tian, Chunhua.,Tang, Linlong.,Han, Xijiang.,Wang, Yahui.,...&Du, Yunchen.(2019).Space-Confined Synthesis of Core-Shell BaTiO3@Carbon Microspheres as a High-Performance Binary Dielectric System for Microwave Absorption.ACS APPLIED MATERIALS & INTERFACES,11(34),31182-31190.
MLA Cui, Liru,et al."Space-Confined Synthesis of Core-Shell BaTiO3@Carbon Microspheres as a High-Performance Binary Dielectric System for Microwave Absorption".ACS APPLIED MATERIALS & INTERFACES 11.34(2019):31182-31190.

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来源：重庆绿色智能技术研究院

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