Yuhong Cui, Guoliang Ru, Tianyi Zhang, Ke Yang, Shujuan Liu, Weihong Qi, Qian Ye, Xuqing Liu, Feng Zhou
{"title":"用于高性能多功能柔性吸收器的 Ti3C2Tx/ZnS 有机水凝胶中的肖特基界面工程技术","authors":"Yuhong Cui, Guoliang Ru, Tianyi Zhang, Ke Yang, Shujuan Liu, Weihong Qi, Qian Ye, Xuqing Liu, Feng Zhou","doi":"10.1002/adfm.202417346","DOIUrl":null,"url":null,"abstract":"With the rapid advancement of wearable electronics, soft robotics, and camouflage technologies, there is an urgent demand for flexible, multifunctional electromagnetic wave absorbing materials. Traditional absorbers, including metal- and carbon-based materials, often lack the flexibility required for such applications. In this work, a novel strategy is proposed for developing a flexible absorber by combining a conductive filler with a Schottky heterogeneous interface and a polymer network framework. Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene is modified with ZnS via a low-temperature hydrothermal method, forming a Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>/ZnS composite. This composite is subsequently embedded in a copolymer matrix of polyvinyl alcohol (PVA) and acrylamide (AAm), dispersed in a binary water-glycerol solution. The Schottky interface between Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> and ZnS enhances electron transfer at the heterophase boundary, significantly improving interface polarisation. Simultaneously, interactions between water and glycerol restrict the rotation of polar molecules under external electromagnetic fields, optimising polarisation loss within the gel. Experimental results demonstrate that the Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>/ZnS gel achieves a minimum reflection loss (RL<sub>min</sub>) of −43.76 dB at 8.79 GHz, with an effective absorption bandwidth (EAB) covering the entire X-band. Additionally, the gel exhibit exceptional stretchability, frost resistance, shape adaptability, and photothermal conversion properties.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"13 1","pages":""},"PeriodicalIF":18.5000,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Schottky Interface Engineering in Ti3C2Tx/ZnS Organic Hydrogels for High-Performance Multifunctional Flexible Absorbers\",\"authors\":\"Yuhong Cui, Guoliang Ru, Tianyi Zhang, Ke Yang, Shujuan Liu, Weihong Qi, Qian Ye, Xuqing Liu, Feng Zhou\",\"doi\":\"10.1002/adfm.202417346\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"With the rapid advancement of wearable electronics, soft robotics, and camouflage technologies, there is an urgent demand for flexible, multifunctional electromagnetic wave absorbing materials. Traditional absorbers, including metal- and carbon-based materials, often lack the flexibility required for such applications. In this work, a novel strategy is proposed for developing a flexible absorber by combining a conductive filler with a Schottky heterogeneous interface and a polymer network framework. Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene is modified with ZnS via a low-temperature hydrothermal method, forming a Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>/ZnS composite. This composite is subsequently embedded in a copolymer matrix of polyvinyl alcohol (PVA) and acrylamide (AAm), dispersed in a binary water-glycerol solution. The Schottky interface between Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> and ZnS enhances electron transfer at the heterophase boundary, significantly improving interface polarisation. Simultaneously, interactions between water and glycerol restrict the rotation of polar molecules under external electromagnetic fields, optimising polarisation loss within the gel. Experimental results demonstrate that the Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>/ZnS gel achieves a minimum reflection loss (RL<sub>min</sub>) of −43.76 dB at 8.79 GHz, with an effective absorption bandwidth (EAB) covering the entire X-band. Additionally, the gel exhibit exceptional stretchability, frost resistance, shape adaptability, and photothermal conversion properties.\",\"PeriodicalId\":112,\"journal\":{\"name\":\"Advanced Functional Materials\",\"volume\":\"13 1\",\"pages\":\"\"},\"PeriodicalIF\":18.5000,\"publicationDate\":\"2024-11-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Advanced Functional Materials\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1002/adfm.202417346\",\"RegionNum\":1,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Functional Materials","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1002/adfm.202417346","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Schottky Interface Engineering in Ti3C2Tx/ZnS Organic Hydrogels for High-Performance Multifunctional Flexible Absorbers
With the rapid advancement of wearable electronics, soft robotics, and camouflage technologies, there is an urgent demand for flexible, multifunctional electromagnetic wave absorbing materials. Traditional absorbers, including metal- and carbon-based materials, often lack the flexibility required for such applications. In this work, a novel strategy is proposed for developing a flexible absorber by combining a conductive filler with a Schottky heterogeneous interface and a polymer network framework. Ti3C2Tx MXene is modified with ZnS via a low-temperature hydrothermal method, forming a Ti3C2Tx/ZnS composite. This composite is subsequently embedded in a copolymer matrix of polyvinyl alcohol (PVA) and acrylamide (AAm), dispersed in a binary water-glycerol solution. The Schottky interface between Ti3C2Tx and ZnS enhances electron transfer at the heterophase boundary, significantly improving interface polarisation. Simultaneously, interactions between water and glycerol restrict the rotation of polar molecules under external electromagnetic fields, optimising polarisation loss within the gel. Experimental results demonstrate that the Ti3C2Tx/ZnS gel achieves a minimum reflection loss (RLmin) of −43.76 dB at 8.79 GHz, with an effective absorption bandwidth (EAB) covering the entire X-band. Additionally, the gel exhibit exceptional stretchability, frost resistance, shape adaptability, and photothermal conversion properties.
期刊介绍:
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