Co Nanoparticles Encapsulated in Carbon Nanotubes Decorated Carbon Aerogels Toward Excellent Microwave Absorption,Industrial & Engineering Chemistry Research

当前位置： X-MOL 学术 › Ind. Eng. Chem. Res. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Co Nanoparticles Encapsulated in Carbon Nanotubes Decorated Carbon Aerogels Toward Excellent Microwave Absorption
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2022-01-20 , DOI: 10.1021/acs.iecr.1c03585
Yang Fei ₁ , Xiaoyan Wang ₂ , Mushan Yuan ₁ , Mei Liang ₁ , Yang Chen ₁ , Huawei Zou ₁

Affiliation

Here, a porous hybrid carbon aerogel (CNS/Co@NCNTs) is fabricated by growing cobalt nanoparticles in N-doped carbon nanotubes on three-dimensional (3D) continuous carbon nanosheets through a directional freeze-casting process and a carbonization process. The resulting hybrid carbon aerogels exhibit excellent attenuation performance owing to a unique 3D porous structure with a large surface, multiple interfaces, abundant defects, and efficient electron conductivity. Consequently, the optimized CNS/Co@NCNT-900 aerogel demonstrates extraordinary microwave absorption (MA) performance in terms of minimum reflection loss (−27.5 dB) and effective absorption bandwidth (7.4 GHz). This work proposes a novel approach for designing and fabricating highly effective magnetic porous hybrid carbon aerogels to be applied in MA fields.

中文翻译：

包裹在碳纳米管中的 Co 纳米颗粒装饰碳气凝胶以实现出色的微波吸收

在这里，多孔混合碳气凝胶 (CNS/Co@NCNTs) 通过定向冷冻铸造工艺和碳化工艺在三维 (3D) 连续碳纳米片上的 N 掺杂碳纳米管中生长钴纳米颗粒来制造。由于具有独特的 3D 多孔结构，具有大表面、多界面、丰富的缺陷和高效的电子传导性，由此产生的混合碳气凝胶表现出优异的衰减性能。因此，优化的 CNS/Co@NCNT-900 气凝胶在最小反射损耗 (-27.5 dB) 和有效吸收带宽 (7.4 GHz) 方面表现出非凡的微波吸收 (MA) 性能。这项工作提出了一种用于设计和制造用于 MA 领域的高效磁性多孔杂化碳气凝胶的新方法。

更新日期：2022-02-02

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11