{"title":"以磁性 ZIF-67 为芯层、以原位生长的镍锰-LDH 纳米片为壳层的柔性碳纤维用于吸收微波","authors":"Xiaofang Ma, Ying Huang, Xiaoxiao Zhao, Meng Yu, Yan Gao, Bing Gao, Sijiao Xiang","doi":"10.1039/d4re00353e","DOIUrl":null,"url":null,"abstract":"Fabrication of high-performance microwaves absorbers by assembling multi-dimensional nanocomponents into core-shell electromagnetic structures has been shown to be a new manufacturing strategy. In this work, a novel core-shell carbon-fibres@ZIF-67@NiMn-Layered double hydroxides (NiMn-LDH) film with excellent electromagnetic waves absorption was obtained by electrospinning ZIF-67 inside the carbon fibre and subsequent solvothermal NiMn-LDH. By the synergistic effects from the Co particles in ZIF-67 increasing the magnetic loss, the appropriate proportion of carbon fibre as a carbon source not only improves the dielectric loss but also provides a carrier for NiMn-LDH. And NiMn-LDH at the outer shell, improving the impendence matching. Co/carbon fibres@NiMn-LDH (Co/CFs@NiMn-LDH) composited at a thickness of 2.8 mm with minimum reflection loss (R of -53 dB, and it also has good flexibility. The EAB of the obtained CFs@NiMn-LDH reaches 6.7 GHz. This work provides a reference for the application of flexible carbon matrix composites in electromagnetic wave absorption field.","PeriodicalId":101,"journal":{"name":"Reaction Chemistry & Engineering","volume":null,"pages":null},"PeriodicalIF":3.4000,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Flexible carbon fibres with magnetic ZIF-67 as core layer and in-situ grown NiMn-LDH nanosheets as shell layer for microwaves absorption\",\"authors\":\"Xiaofang Ma, Ying Huang, Xiaoxiao Zhao, Meng Yu, Yan Gao, Bing Gao, Sijiao Xiang\",\"doi\":\"10.1039/d4re00353e\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Fabrication of high-performance microwaves absorbers by assembling multi-dimensional nanocomponents into core-shell electromagnetic structures has been shown to be a new manufacturing strategy. In this work, a novel core-shell carbon-fibres@ZIF-67@NiMn-Layered double hydroxides (NiMn-LDH) film with excellent electromagnetic waves absorption was obtained by electrospinning ZIF-67 inside the carbon fibre and subsequent solvothermal NiMn-LDH. By the synergistic effects from the Co particles in ZIF-67 increasing the magnetic loss, the appropriate proportion of carbon fibre as a carbon source not only improves the dielectric loss but also provides a carrier for NiMn-LDH. And NiMn-LDH at the outer shell, improving the impendence matching. Co/carbon fibres@NiMn-LDH (Co/CFs@NiMn-LDH) composited at a thickness of 2.8 mm with minimum reflection loss (R of -53 dB, and it also has good flexibility. The EAB of the obtained CFs@NiMn-LDH reaches 6.7 GHz. This work provides a reference for the application of flexible carbon matrix composites in electromagnetic wave absorption field.\",\"PeriodicalId\":101,\"journal\":{\"name\":\"Reaction Chemistry & Engineering\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.4000,\"publicationDate\":\"2024-09-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Reaction Chemistry & Engineering\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1039/d4re00353e\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Reaction Chemistry & Engineering","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1039/d4re00353e","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Flexible carbon fibres with magnetic ZIF-67 as core layer and in-situ grown NiMn-LDH nanosheets as shell layer for microwaves absorption
Fabrication of high-performance microwaves absorbers by assembling multi-dimensional nanocomponents into core-shell electromagnetic structures has been shown to be a new manufacturing strategy. In this work, a novel core-shell carbon-fibres@ZIF-67@NiMn-Layered double hydroxides (NiMn-LDH) film with excellent electromagnetic waves absorption was obtained by electrospinning ZIF-67 inside the carbon fibre and subsequent solvothermal NiMn-LDH. By the synergistic effects from the Co particles in ZIF-67 increasing the magnetic loss, the appropriate proportion of carbon fibre as a carbon source not only improves the dielectric loss but also provides a carrier for NiMn-LDH. And NiMn-LDH at the outer shell, improving the impendence matching. Co/carbon fibres@NiMn-LDH (Co/CFs@NiMn-LDH) composited at a thickness of 2.8 mm with minimum reflection loss (R of -53 dB, and it also has good flexibility. The EAB of the obtained CFs@NiMn-LDH reaches 6.7 GHz. This work provides a reference for the application of flexible carbon matrix composites in electromagnetic wave absorption field.
期刊介绍:
Reaction Chemistry & Engineering is a new journal reporting cutting edge research into all aspects of making molecules for the benefit of fundamental research, applied processes and wider society.
From fundamental, molecular-level chemistry to large scale chemical production, Reaction Chemistry & Engineering brings together communities of chemists and chemical engineers working to ensure the crucial role of reaction chemistry in today’s world.