{"title":"Electromagnetic Wave Absorption Properties of Single‐Source‐Precursor Derived CNWs/Ni2Si/SiOC Nanocomposites","authors":"Ting Chen, Hanzi Du, Ralf Riedel, Zhaoju Yu","doi":"10.1002/zaac.202300236","DOIUrl":null,"url":null,"abstract":"This work successfully fabricated a novel CNWs/Ni<jats:sub>2</jats:sub>Si/SiOC nanocomposite ceramic material using a single‐source‐precursor derived ceramic approach. The material exhibits <jats:italic>in‐situ</jats:italic> formation of carbon nanowires (CNWs) and multiple core‐shell nanoparticles such as Ni<jats:sub>2</jats:sub>Si@C and SiC@C. The reaction mechanism of the precursor, the microstructure and phase composition, and the ceramics′ electromagnetic wave (EMW) absorbing properties were thoroughly investigated and discussed. The obtained CNWs/Ni<jats:sub>2</jats:sub>Si/SiOC nanocomposite ceramics possesses a minimum reflection loss (RLmin) of −43.5 dB, indicating excellent EMW absorbing performance. The <jats:italic>in‐situ</jats:italic> formation of CNWs and multi‐core‐shell nanoparticles (Ni<jats:sub>2</jats:sub>Si@C and SiC@C) in the ceramics play a crucial role in enhancing their EMW absorbing properties compared to pure SiOC ceramics.","PeriodicalId":23934,"journal":{"name":"Zeitschrift für anorganische und allgemeine Chemie","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Zeitschrift für anorganische und allgemeine Chemie","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1002/zaac.202300236","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
This work successfully fabricated a novel CNWs/Ni2Si/SiOC nanocomposite ceramic material using a single‐source‐precursor derived ceramic approach. The material exhibits in‐situ formation of carbon nanowires (CNWs) and multiple core‐shell nanoparticles such as Ni2Si@C and SiC@C. The reaction mechanism of the precursor, the microstructure and phase composition, and the ceramics′ electromagnetic wave (EMW) absorbing properties were thoroughly investigated and discussed. The obtained CNWs/Ni2Si/SiOC nanocomposite ceramics possesses a minimum reflection loss (RLmin) of −43.5 dB, indicating excellent EMW absorbing performance. The in‐situ formation of CNWs and multi‐core‐shell nanoparticles (Ni2Si@C and SiC@C) in the ceramics play a crucial role in enhancing their EMW absorbing properties compared to pure SiOC ceramics.
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