Yingying Zhou*, Chenyu Zhu, Haonan Du, Chaoqun Yang, Yuanyuan Lu, Xiaojuan Zhao, Man Yu, Enyuan Zhen and Hui Xie*,
{"title":"Selective Cleaning of Hollow Nanoporous Carbon Cubes for Electromagnetic Wave Absorption","authors":"Yingying Zhou*, Chenyu Zhu, Haonan Du, Chaoqun Yang, Yuanyuan Lu, Xiaojuan Zhao, Man Yu, Enyuan Zhen and Hui Xie*, ","doi":"10.1021/acsanm.5c00080","DOIUrl":null,"url":null,"abstract":"<p >This study introduces a method for fabricating hollow nanoporous carbon cubes (HPCCs), utilizing the selective purification effect of acetone on a small-molecule phenolic resin (PR)/NaCl precursor. The impact of acetone-induced purification on the nanoscale microstructure and electromagnetic wave-absorbing properties of HPCCs is systematically explored. Using a template-etch-carbonization process, the HPCCs exhibit a significant increase in specific surface area from 149.61 m<sup>2</sup>/g (HPCCs0min) to 315.86 m<sup>2</sup>/g (HPCCs10min), highlighting the nanoscale structural modifications induced by acetone treatment. At 5 wt % absorber content and a 2.7 mm thickness, HPCCs treated for 10 min demonstrate optimal wave-absorbing performance, achieving a peak reflection loss (RL<sub>min</sub>) of −24.1 dB and an effective absorption bandwidth (EAB) of 7.3 GHz. These results underscore the critical role of nanoscale surface area and pore volume modulation in enhancing the electromagnetic wave absorption capabilities of HPCCs.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 9","pages":"4801–4813 4801–4813"},"PeriodicalIF":5.5000,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Nano Materials","FirstCategoryId":"88","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsanm.5c00080","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
This study introduces a method for fabricating hollow nanoporous carbon cubes (HPCCs), utilizing the selective purification effect of acetone on a small-molecule phenolic resin (PR)/NaCl precursor. The impact of acetone-induced purification on the nanoscale microstructure and electromagnetic wave-absorbing properties of HPCCs is systematically explored. Using a template-etch-carbonization process, the HPCCs exhibit a significant increase in specific surface area from 149.61 m2/g (HPCCs0min) to 315.86 m2/g (HPCCs10min), highlighting the nanoscale structural modifications induced by acetone treatment. At 5 wt % absorber content and a 2.7 mm thickness, HPCCs treated for 10 min demonstrate optimal wave-absorbing performance, achieving a peak reflection loss (RLmin) of −24.1 dB and an effective absorption bandwidth (EAB) of 7.3 GHz. These results underscore the critical role of nanoscale surface area and pore volume modulation in enhancing the electromagnetic wave absorption capabilities of HPCCs.
期刊介绍：
ACS Applied Nano Materials is an interdisciplinary journal publishing original research covering all aspects of engineering, chemistry, physics and biology relevant to applications of nanomaterials. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important applications of nanomaterials.
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