{"title":"MXene 复合材料 - Ti3C2Tx @MnCo2O4 在 2-18 GHz 频率范围内的微波吸收参数","authors":"","doi":"10.1016/j.materresbull.2024.113055","DOIUrl":null,"url":null,"abstract":"<div><p>The great potential for electromagnetic wave (EMW) absorption is revealed in two-dimensional (2D) Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> (MXene) <strong>thin sheets that have numerous surface flaws and an extensive spectrum of functional groups. In this study</strong>, Ti<sub>3</sub>AlC<sub>2</sub> (MAX Phase) is etched, and then ultrasonic exfoliation is used to create 2D ultrathin Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> nanosheets; a type of MXene. The MnCo<sub>2</sub>O<sub>4</sub> spherical particles were grown on the layered structure of Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> via a one-pot hydrothermal process. The synthesized Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>/MnCo<sub>2</sub>O<sub>4</sub> composite provides superior bulk-to-surface and interfacial charge transfer capabilities due to their short charge transfer distance and extensive interface contact area to the EMW. <strong>This article thoroughly evaluates the loss impact in Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>/MnCo<sub>2</sub>O<sub>4</sub> absorbers as -44.4</strong> <strong>dB of reflection loss at 16.04</strong> <strong>GHz with a thickness of 5.114</strong> <strong>mm for the first time, which is essential for fabricating an effective microwave absorber.</strong></p></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":null,"pages":null},"PeriodicalIF":5.3000,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Microwave absorption parameters over 2–18 GHz frequency range for the MXene composite – Ti3C2Tx @MnCo2O4\",\"authors\":\"\",\"doi\":\"10.1016/j.materresbull.2024.113055\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The great potential for electromagnetic wave (EMW) absorption is revealed in two-dimensional (2D) Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> (MXene) <strong>thin sheets that have numerous surface flaws and an extensive spectrum of functional groups. In this study</strong>, Ti<sub>3</sub>AlC<sub>2</sub> (MAX Phase) is etched, and then ultrasonic exfoliation is used to create 2D ultrathin Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> nanosheets; a type of MXene. The MnCo<sub>2</sub>O<sub>4</sub> spherical particles were grown on the layered structure of Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> via a one-pot hydrothermal process. The synthesized Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>/MnCo<sub>2</sub>O<sub>4</sub> composite provides superior bulk-to-surface and interfacial charge transfer capabilities due to their short charge transfer distance and extensive interface contact area to the EMW. <strong>This article thoroughly evaluates the loss impact in Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>/MnCo<sub>2</sub>O<sub>4</sub> absorbers as -44.4</strong> <strong>dB of reflection loss at 16.04</strong> <strong>GHz with a thickness of 5.114</strong> <strong>mm for the first time, which is essential for fabricating an effective microwave absorber.</strong></p></div>\",\"PeriodicalId\":18265,\"journal\":{\"name\":\"Materials Research Bulletin\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":5.3000,\"publicationDate\":\"2024-08-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materials Research Bulletin\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0025540824003866\",\"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 Research Bulletin","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0025540824003866","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}
Microwave absorption parameters over 2–18 GHz frequency range for the MXene composite – Ti3C2Tx @MnCo2O4
The great potential for electromagnetic wave (EMW) absorption is revealed in two-dimensional (2D) Ti3C2Tx (MXene) thin sheets that have numerous surface flaws and an extensive spectrum of functional groups. In this study, Ti3AlC2 (MAX Phase) is etched, and then ultrasonic exfoliation is used to create 2D ultrathin Ti3C2Tx nanosheets; a type of MXene. The MnCo2O4 spherical particles were grown on the layered structure of Ti3C2Tx via a one-pot hydrothermal process. The synthesized Ti3C2Tx/MnCo2O4 composite provides superior bulk-to-surface and interfacial charge transfer capabilities due to their short charge transfer distance and extensive interface contact area to the EMW. This article thoroughly evaluates the loss impact in Ti3C2Tx/MnCo2O4 absorbers as -44.4dB of reflection loss at 16.04GHz with a thickness of 5.114mm for the first time, which is essential for fabricating an effective microwave absorber.
期刊介绍：
Materials Research Bulletin is an international journal reporting high-impact research on processing-structure-property relationships in functional materials and nanomaterials with interesting electronic, magnetic, optical, thermal, mechanical or catalytic properties. Papers purely on thermodynamics or theoretical calculations (e.g., density functional theory) do not fall within the scope of the journal unless they also demonstrate a clear link to physical properties. Topics covered include functional materials (e.g., dielectrics, pyroelectrics, piezoelectrics, ferroelectrics, relaxors, thermoelectrics, etc.); electrochemistry and solid-state ionics (e.g., photovoltaics, batteries, sensors, and fuel cells); nanomaterials, graphene, and nanocomposites; luminescence and photocatalysis; crystal-structure and defect-structure analysis; novel electronics; non-crystalline solids; flexible electronics; protein-material interactions; and polymeric ion-exchange membranes.
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