Investigation of microwave-absorbing properties of aligned polyaniline/multi-walled carbon nanotubes nanocomposites

IF 2.2 4区材料科学 Q3 CHEMISTRY, PHYSICAL Fullerenes, Nanotubes and Carbon Nanostructures Pub Date : 2023-10-26 DOI:10.1080/1536383x.2023.2264994

Zhaonan Sun, Fanghui Wang, Linghan Kong

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Abstract

AbstractA aligned polyaniline/carbon nanotubes (a-PANI/CNTs) nanocomposite was synthesized by in situ polymerization. The structural and the microwave-absorbing properties of the a-PANI/CNTs nanocomposites were studied. Transmission electron microscopy, X-ray diffraction and Raman spectra were carried out to confirm the formation of a vertically grown PANI array on the surface of the CNTs. With a matching thickness of 1.5 mm, the a-PANI/CNTs had a maximum reflection loss of about −29.49 dB. Moreover, the bandwidth corresponding to reflection loss below −10 dB was about 4.42 GHz (13.58 GHz to 18.00 GHz), which is significantly better than those of CNTs, PANI and PANI/CNTs. We ascribed the enhanced microwave-absorbing properties to the unique ordered structure of aligned PANI.Keywords: Aligned PANIcarbon nanotubesnanocompositesmicrowave-absorbing properties Disclosure statementNo potential conflict of interest was reported by the authors.Additional informationFundingThis work is supported by the program of “Feasibility study of on-site smoke purification for electrical fire incidents” by China Fire And Rescue Institute (No. XFKYB202310).

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排列聚苯胺/多壁碳纳米管纳米复合材料的吸波性能研究

摘要采用原位聚合法制备了定向聚苯胺/碳纳米管(a-PANI/CNTs)纳米复合材料。研究了聚苯胺/碳纳米管复合材料的结构和吸波性能。透射电镜、x射线衍射和拉曼光谱证实了在CNTs表面形成了垂直生长的聚苯胺阵列。当匹配厚度为1.5 mm时，a- pani /CNTs的最大反射损耗约为−29.49 dB。−10 dB以下反射损耗对应的带宽约为4.42 GHz (13.58 GHz ~ 18.00 GHz)，明显优于CNTs、PANI和PANI/CNTs。我们将增强的微波吸收性能归因于排列聚苯胺独特的有序结构。关键词:排列聚碳纳米管纳米复合材料微波吸收特性披露声明作者未报告潜在利益冲突。本研究受中国消防救援研究所(No. 1)“电气火灾事故现场烟气净化可行性研究”项目资助。XFKYB202310)。

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来源期刊

Fullerenes, Nanotubes and Carbon Nanostructures 工程技术-材料科学：综合

CiteScore

4.80

自引率

17.40%

发文量

审稿时长

1 months

期刊介绍： The international and interdisciplinary forum, Fullerenes, Nanotubes, and Carbon Nanostructures , aims at publishing peer-reviewed research of original work in all areas of CARBON research including fullerenes, nanotubes, nanodiamond, graphene, any type of carbon nanostructure and any work dealing with carbon and carbon-related topics. Publishing high quality papers from all fields of carbon science and related topics, the journal intends to provide a means of communication between researchers who are interested in fundamental and applied carbon science issues.