共查询到18条相似文献,搜索用时 93 毫秒
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碳纳米管因其独特而优异的电学、力学、热学、化学及电子特性等在很多领域上展现应用的潜力,而近年来碳纳米管在压力传感器方面的应用成为研究热点之一.本文综述了碳纳米管压力传感器的基本原理以及研究进展,并对不同类型的碳纳米管压力传感器进行了比较. 相似文献
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聚合物/碳纳米管复合材料研究进展 总被引:10,自引:0,他引:10
聚合物/碳纳米管复合材料近年来引起人们广泛的关注。本文综述了聚合物/碳纳米管复合材料的研究进展,重点介绍了聚合物/碳纳米管复合材料的类型、制备方法及力学、电学和光学性能等。 相似文献
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为了提高NO2气体检测的灵敏度和速度,以单壁碳纳米管(SWCNT)为装配介质,采用介电电泳方法获得单壁碳纳米管场效应晶体管(SWCNT—FET)作为气体传感器检测装置,通过原子力显微镜(AFM)和扫描电子显微镜(SEM)表征,结果显示,利用介电电泳方法能够成功地把SWCNTs装配到芯片的源漏两极间;通入NO2气体前后电特性变化情况的测试结果表明,选择接入电场频率为2MHz,峰峰值电压10V,介电电泳持续时间10s时,制备出SWCNT—FET成功率高,通入NO2气体后的电导率增加三个数量级。利用紫外光持续照射10min,SWCNT上的气体分子解附,使气体传感器可重复利用。 相似文献
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碳纳米管因其独特的结构而具有许多独特的性能,除了在半导体器件、储氢、传感器、吸附材料、电池电极、催化剂载体等领域具有非常广阔和诱人的应用前景外,碳纳米管在制备结构、功能以及结构/功能一体化复合材料方面也将大有作为.本研究对国内外碳纳米管增强陶瓷基复合材料的研究状况进行了综合分析,指出了存在的问题及以后的发展方向. 相似文献
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Yuan Jiao Seong Won Cho Suyoun Lee Sang Hoon Kim Seung‐Yeol Jeon Kahyun Hur Sun Mi Yoon Myoung‐Woon Moon Aiying Wang 《Advanced Engineering Materials》2018,20(1)
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Yongwoo Jang Sung Min Kim Geoffrey M. Spinks Seon Jeong Kim 《Advanced materials (Deerfield Beach, Fla.)》2020,32(5):1902670
Smart systems are those that display autonomous or collaborative functionalities, and include the ability to sense multiple inputs, to respond with appropriate operations, and to control a given situation. In certain circumstances, it is also of great interest to retain flexible, stretchable, portable, wearable, and/or implantable attributes in smart electronic systems. Among the promising candidate smart materials, carbon nanotubes (CNTs) exhibit excellent electrical and mechanical properties, and structurally fabricated CNT-based fibers and yarns with coil and twist further introduce flexible and stretchable properties. A number of notable studies have demonstrated various functions of CNT yarns, including sensors, actuators, and energy storage. In particular, CNT yarns can operate as flexible electronic sensors and electrodes to monitor strain, temperature, ionic concentration, and the concentration of target biomolecules. Moreover, a twisted CNT yarn enables strong torsional actuation, and coiled CNT yarns generate large tensile strokes as an artificial muscle. Furthermore, the reversible actuation of CNT yarns can be used as an energy harvester and, when combined with a CNT supercapacitor, has promoted the next-generation of energy storage systems. Here, progressive advances of CNT yarns in electrical sensing, actuation, and energy storage are reported, and the future challenges in smart electronic systems considered. 相似文献
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碳纳米管是由单层或多层石墨片卷曲而成的无缝纳米级管状壳层结构。扼要介绍了碳纳米管、碳纳米管纤维的合成方法及近几年来国内外制备的各种碳纳米管产品。碳纳米管、碳纳米管纤维由于其优良的力学、电学特性可以制成气体吸附体、生物模板、传动装置、增强复合体、催化剂载体、探测器、传感器、纳米反应器等产品,在航空、能源、医药、化学等技术领域广泛应用。 相似文献