热门
MOFs-Derived Hollow Co/C Microspheres with Enhanced Microwave Absorption Performance
文献类型：期刊论文
| 作者 | Li, Zhennan1; Han, Xijiang1; Ma, Yan1; Liu, Dawei1; Wang, Yahui1; Xu, Ping1; Li, Chaolong2 ; Du, Yunchen1,3
|
| 刊名 | ACS SUSTAINABLE CHEMISTRY & ENGINEERING
 |
| 出版日期 | 2018-07-01 |
| 卷号 | 6期号:7页码:8904-8913 |
| 关键词 | Hollow microstructure Co/C microspheres MOFs ZIF-67 Microwave absorption Impedance matching |
| ISSN号 | 2168-0485 |
| DOI | 10.1021/acssuschemeng.8b01270 |
| 英文摘要 | Rational construction of a profitable microstructure in carbon-based electromagnetic composites is becoming a promising strategy to reinforce their microwave absorption performance. Herein, the microstructure design is innovatively coupled with a metal-organic frameworks (MOFs)-derived method to produce hollow Co/C microspheres (Co/C-HS). The resultant composites combine the advantages of hollow microstructures and good chemical homogeneity. It is found that the pyrolysis temperature plays an important role in determining the electromagnetic properties of these hollow Co/C microspheres, where high pyrolysis temperature will increase relative complex permittivity and decrease relative complex permeability. When the pyrolysis temperature is 600 degrees C, the sample (Co/C-HS-600) will show improved impedance matching and good attenuation ability, and thus an excellent microwave absorption performance with strong reflection loss (-66.5 dB at 17.6 GHz) and wide response bandwidth (over -10 dB, 3.7-18.0 GHz) can be achieved. By comparing with Co/C composites derived from conventional ZIF-67, it can be validated that a hollow microstructure is greatly helpful to upgrade the performance by boosting dielectric loss ability and suppressing a negative interaction between the carbon matrix and incident electromagnetic waves, as well as providing multiple reflection behaviors. We believe that this study may open a new avenue to promote the electromagnetic applications of MOFs-derived carbon-based composites. |
| 资助项目 | National Natural Science Foundation of China[21676065] ; National Natural Science Foundation of China[21776053] ; National Natural Science Foundation of China[21571043] ; Key Laboratory of Functional Inorganic Material Chemistry (Heilongjiang University), Ministry of Education |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000444924500092 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/6712]  |
| 专题 | 微纳制造与系统集成研究中心 |
| 通讯作者 | Han, Xijiang; Li, Chaolong; Du, Yunchen |
| 作者单位 | 1.Harbin Inst Technol, MIIT Key Lab Crit Mat Technol New Energy Convers, Sch Chem & Chem Engn, 92 West Da Zhi St, 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 3.Heilongjiang Univ, Minist Educ Peoples Republ China, Key Lab Funct Inorgan Mat Chem, 74 Xuefu Rd, Harbin 150080, Heilongjiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Zhennan,Han, Xijiang,Ma, Yan,et al. MOFs-Derived Hollow Co/C Microspheres with Enhanced Microwave Absorption Performance[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2018,6(7):8904-8913. |
| APA | Li, Zhennan.,Han, Xijiang.,Ma, Yan.,Liu, Dawei.,Wang, Yahui.,...&Du, Yunchen.(2018).MOFs-Derived Hollow Co/C Microspheres with Enhanced Microwave Absorption Performance.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,6(7),8904-8913. |
| MLA | Li, Zhennan,et al."MOFs-Derived Hollow Co/C Microspheres with Enhanced Microwave Absorption Performance".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 6.7(2018):8904-8913. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。