{"title":"用 MoS2 对棉纤维衍生碳进行装饰，实现高电磁波吸收率","authors":"","doi":"10.1016/j.matchemphys.2024.129844","DOIUrl":null,"url":null,"abstract":"<div><p>Biomass-derived carbon materials have advantages such as lightweight and strong sustainability compared with traditional carbon-based absorbing materials, thus having great potential in electromagnetic wave (EMW) absorbing materials. CFC/MoS<sub>2</sub> composites with a structure of cotton fiber-derived carbon (CFC) decorated with molybdenum disulfide (MoS<sub>2</sub>) have been prepared using the simple carbonization and hydrothermal method in this work, which had high EMW absorption. The analysis results indicate that high EMW absorption of CFC/MoS<sub>2</sub> composites is attributed to the balanced impedance matching, while being affected by a combination of conductive loss, multiple scattering, and polarization loss. The minimum reflection loss of CFC/MoS<sub>2</sub> composite with thickness of 3.0 mm could reach −49.7 dB and effective bandwidth could reach 3.6 GHz (8.0–11.6 GHz) at a frequency of 9.25 GHz. This work fully utilizes the advantages of biomass-derived carbon and proposes a novel research approach for development of environmentally friendly and low-cost EMW absorbing composites.</p></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":null,"pages":null},"PeriodicalIF":4.3000,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Cotton fiber-derived carbon decorated with MoS2 for high electromagnetic wave absorption\",\"authors\":\"\",\"doi\":\"10.1016/j.matchemphys.2024.129844\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Biomass-derived carbon materials have advantages such as lightweight and strong sustainability compared with traditional carbon-based absorbing materials, thus having great potential in electromagnetic wave (EMW) absorbing materials. CFC/MoS<sub>2</sub> composites with a structure of cotton fiber-derived carbon (CFC) decorated with molybdenum disulfide (MoS<sub>2</sub>) have been prepared using the simple carbonization and hydrothermal method in this work, which had high EMW absorption. The analysis results indicate that high EMW absorption of CFC/MoS<sub>2</sub> composites is attributed to the balanced impedance matching, while being affected by a combination of conductive loss, multiple scattering, and polarization loss. The minimum reflection loss of CFC/MoS<sub>2</sub> composite with thickness of 3.0 mm could reach −49.7 dB and effective bandwidth could reach 3.6 GHz (8.0–11.6 GHz) at a frequency of 9.25 GHz. This work fully utilizes the advantages of biomass-derived carbon and proposes a novel research approach for development of environmentally friendly and low-cost EMW absorbing composites.</p></div>\",\"PeriodicalId\":18227,\"journal\":{\"name\":\"Materials Chemistry and Physics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.3000,\"publicationDate\":\"2024-08-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materials Chemistry and Physics\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0254058424009726\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Chemistry and Physics","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0254058424009726","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Cotton fiber-derived carbon decorated with MoS2 for high electromagnetic wave absorption
Biomass-derived carbon materials have advantages such as lightweight and strong sustainability compared with traditional carbon-based absorbing materials, thus having great potential in electromagnetic wave (EMW) absorbing materials. CFC/MoS2 composites with a structure of cotton fiber-derived carbon (CFC) decorated with molybdenum disulfide (MoS2) have been prepared using the simple carbonization and hydrothermal method in this work, which had high EMW absorption. The analysis results indicate that high EMW absorption of CFC/MoS2 composites is attributed to the balanced impedance matching, while being affected by a combination of conductive loss, multiple scattering, and polarization loss. The minimum reflection loss of CFC/MoS2 composite with thickness of 3.0 mm could reach −49.7 dB and effective bandwidth could reach 3.6 GHz (8.0–11.6 GHz) at a frequency of 9.25 GHz. This work fully utilizes the advantages of biomass-derived carbon and proposes a novel research approach for development of environmentally friendly and low-cost EMW absorbing composites.
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Materials Chemistry and Physics is devoted to short communications, full-length research papers and feature articles on interrelationships among structure, properties, processing and performance of materials. The Editors welcome manuscripts on thin films, surface and interface science, materials degradation and reliability, metallurgy, semiconductors and optoelectronic materials, fine ceramics, magnetics, superconductors, specialty polymers, nano-materials and composite materials.
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