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Facile synthesis of 3D flower-like Ni microspheres with enhanced microwave absorption properties

文献类型：期刊论文

作者Liu, Dawei1; Du, Yunchen1; Li, Zhennan1; Wang, Yahui1; Xu, Ping1; Zhao, Honghong1; Wang, Fengyuan1; Li, Chaolong2; Han, Xijiang1
刊名JOURNAL OF MATERIALS CHEMISTRY C
出版日期2018-09-28
卷号6期号:36页码:9615-9623
ISSN号2050-7526
DOI10.1039/c8tc02931h
通讯作者Du, Yunchen(yunchendu@hit.edu.cn) ; Li, Chaolong(lichaolong@cigit.ac.cn) ; Han, Xijiang(hanxijiang@hit.edu.cn)
英文摘要Rational design of the microstructure of functional materials provides a new opportunity to improve their performance. However, it is always difficult to construct desirable microstructures in magnetic metals due to their strong magnetic interactions. Herein, we demonstrate the successful synthesis of three-dimensional flower-like Ni microspheres (FNMs) through a simple two-step process, in which flower-like Ni(OH)(2) microspheres are firstly prepared by a hydrothermal route and then are reduced under a high-temperature H-2/N-2 atmosphere. The as-prepared FNMs are composed of cross-linked nanoparticles directed by their precursor. Compared with commercial and home-made Ni powder, FNMs exhibit enhanced conductivity and dielectric loss ability, as well as significantly improved impedance matching. As a result, FNMs exhibit good microwave absorption properties, including a strong reflection loss (-56.8 dB at 15.8 GHz) and a broad qualified frequency range (2.5-18.0 GHz) with thicknesses ranging from 5.0 to 1.0 mm and a thin matching thickness of 1.12 mm. Such an excellent performance is substantially superior to those of Ni-based materials derived from various elaborate strategies. It is believed that our work may inspire the controlled synthesis of conventional magnetic metal materials with enhanced microwave absorption properties in the future.
资助项目Natural Science Foundation of China[21676065] ; Natural Science Foundation of China[21371039] ; Natural Science Foundation of China[21571043]
WOS研究方向Materials Science ; Physics
语种英语
WOS记录号WOS:000449744900005
出版者ROYAL SOC CHEMISTRY
源URL[http://119.78.100.138/handle/2HOD01W0/6999]  
专题微纳制造与系统集成研究中心
通讯作者Du, Yunchen; Li, Chaolong; Han, Xijiang
作者单位1.Harbin Inst Technol, MIIT Key Lab Crit Mat Technol New Energy Convers, Sch Chem & Chem Engn, Harbin 150001, Heilongjiang, Peoples R China
2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, 266 Fangzheng Ave,Shuitu Hitech Ind Pk, Chongqing 400714, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Dawei,Du, Yunchen,Li, Zhennan,et al. Facile synthesis of 3D flower-like Ni microspheres with enhanced microwave absorption properties[J]. JOURNAL OF MATERIALS CHEMISTRY C,2018,6(36):9615-9623.
APA Liu, Dawei.,Du, Yunchen.,Li, Zhennan.,Wang, Yahui.,Xu, Ping.,...&Han, Xijiang.(2018).Facile synthesis of 3D flower-like Ni microspheres with enhanced microwave absorption properties.JOURNAL OF MATERIALS CHEMISTRY C,6(36),9615-9623.
MLA Liu, Dawei,et al."Facile synthesis of 3D flower-like Ni microspheres with enhanced microwave absorption properties".JOURNAL OF MATERIALS CHEMISTRY C 6.36(2018):9615-9623.

入库方式： OAI收割

来源：重庆绿色智能技术研究院

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