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CuCo Nanocube/N-Doped Carbon Nanotube Composites for Microwave Absorption
ACS Applied Nano Materials ( IF 5.3 ) Pub Date : 2023-01-18 , DOI: 10.1021/acsanm.2c04972
Zhiqian Yao 1, 2 , Suqiong Xu 1, 2 , Xianke Zhang 1, 2 , Jujun Yuan 1, 2 , Chuicai Rong 1, 2 , Zuzhou Xiong 1, 2 , Xiurong Zhu 1, 2 , Yi Yu 1, 2 , Huajun Yu 1, 2 , Shuying Kang 1, 2 , Fangguang Kuang 1, 2
ACS Applied Nano Materials ( IF 5.3 ) Pub Date : 2023-01-18 , DOI: 10.1021/acsanm.2c04972
Zhiqian Yao 1, 2 , Suqiong Xu 1, 2 , Xianke Zhang 1, 2 , Jujun Yuan 1, 2 , Chuicai Rong 1, 2 , Zuzhou Xiong 1, 2 , Xiurong Zhu 1, 2 , Yi Yu 1, 2 , Huajun Yu 1, 2 , Shuying Kang 1, 2 , Fangguang Kuang 1, 2
Affiliation
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Metal–organic frameworks (MOFs) have come into the limelight in the field of microwave absorption since they can be developed into porous carbon-based MOF derivatives with a variety of features, such as controlled defects, tunable structures, and variable compositions. In this paper, Cu3[Co(CN)6]2 Prussian blue analogue (CuCo-PBA) precursors with a regular cubic morphology were synthesized by a simple co-precipitation method and converted into CuCo nanocube/N-doped carbon nanotube (CuCo/NCNT) derivatives by annealing them in argon. It was found that when the annealing temperature was 850 °C, the minimum reflection loss (RLmin) of CuCo/NCNT could reach −54.13 dB with an effective absorption bandwidth of 4.01 GHz. The excellent microwave absorption properties were attributed to the mutual synergy of conduction loss, interfacial polarization, magnetic resonance loss, and eddy current loss. Therefore, this work provides an effective preparation method for the design of lightweight carbon-based microwave-absorbing materials with heterogeneous interfaces using Prussian blue.
中文翻译：
用于微波吸收的 CuCo 纳米立方体/N 掺杂碳纳米管复合材料
金属有机框架 (MOF) 在微波吸收领域备受关注，因为它们可以开发成具有多种特性的多孔碳基 MOF 衍生物，例如可控缺陷、可调结构和可变成分。本文采用简单的共沉淀法合成了具有规则立方形态的Cu 3 [Co(CN) 6 ] 2普鲁士蓝类似物（CuCo-PBA）前驱体，并将其转化为CuCo纳米立方体/N掺杂碳纳米管（CuCo /NCNT) 衍生物在氩气中退火。结果发现，当退火温度为 850 °C 时，最小反射损耗（RL min) 的 CuCo/NCNT 可以达到 −54.13 dB，有效吸收带宽为 4.01 GHz。优异的微波吸收性能归因于传导损耗、界面极化、磁共振损耗和涡流损耗的相互协同作用。因此，该工作为利用普鲁士蓝设计具有异质界面的轻质碳基微波吸收材料提供了一种有效的制备方法。
更新日期：2023-01-18
中文翻译：
用于微波吸收的 CuCo 纳米立方体/N 掺杂碳纳米管复合材料
金属有机框架 (MOF) 在微波吸收领域备受关注，因为它们可以开发成具有多种特性的多孔碳基 MOF 衍生物，例如可控缺陷、可调结构和可变成分。本文采用简单的共沉淀法合成了具有规则立方形态的Cu 3 [Co(CN) 6 ] 2普鲁士蓝类似物（CuCo-PBA）前驱体，并将其转化为CuCo纳米立方体/N掺杂碳纳米管（CuCo /NCNT) 衍生物在氩气中退火。结果发现，当退火温度为 850 °C 时，最小反射损耗（RL min) 的 CuCo/NCNT 可以达到 −54.13 dB，有效吸收带宽为 4.01 GHz。优异的微波吸收性能归因于传导损耗、界面极化、磁共振损耗和涡流损耗的相互协同作用。因此，该工作为利用普鲁士蓝设计具有异质界面的轻质碳基微波吸收材料提供了一种有效的制备方法。
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