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Hybrid nanomaterials designed for volatile organic compounds sensors: A review
Materials & Design ( IF 8.4 ) Pub Date : 2018-10-01 , DOI: 10.1016/j.matdes.2018.06.041
Rafaela S. Andre , Rafaela C. Sanfelice , Adriana Pavinatto , Luiz H.C. Mattoso , Daniel S. Correa

Abstract Volatile organic compounds (VOCs) are associated to many problems regarding to health, such as cancer and asthma, and environmental issues, affecting ecosystem and plant growth development. Thus, reliable technologies capable to detect distinct VOCs in very low levels, both in indoor and outdoor environments, are highly desired. Although standard analytical techniques (such as chromatography and mass spectroscopy) can be used to detect varied VOCs, some of them do not combine sensitivity, precision and low cost. In this sense, the development of sensors employing hybrid nanomaterials designed for detecting VOCs appears as a suitable alternative due to remarkable features as superior sensitivity, limit of detection, possibility of miniaturization and versatility. The outstanding features of designed hybrid nanomaterials arise as consequence of the synergistic effects between the constituent materials, with direct consequence on the sensing mechanisms and performance. In this review article we present recent results on how the use of distinct nanomaterials, including conducting polymer, metals oxides, graphenes, etc., can be used to design nanoarchitectures to develop and improve the performance sensors for detecting VOCs aiming at varied applications.

中文翻译:

为挥发性有机化合物传感器设计的混合纳米材料:综述

摘要 挥发性有机化合物(VOCs)与许多健康问题有关,如癌症和哮喘,以及影响生态系统和植物生长发育的环境问题。因此,非常需要能够检测室内和室外环境中非常低水平的不同 VOC 的可靠技术。尽管标准分析技术(例如色谱法和质谱法)可用于检测各种 VOC,但其中一些无法将灵敏度、精度和低成本结合起来。从这个意义上说,开发采用混合纳米材料来检测 VOC 的传感器似乎是一种合适的替代方案,因为其具有卓越的灵敏度、检测极限、小型化的可能性和多功能性等显着特点。设计的混合纳米材料的突出特点是由于组成材料之间的协同效应而产生的,直接影响传感机制和性能。在这篇评论文章中,我们展示了关于如何使用不同的纳米材料(包括导电聚合物、金属氧化物、石墨烯等)来设计纳米结构以开发和改进用于检测 VOC 的性能传感器的最新结果,这些传感器针对不同的应用。
更新日期:2018-10-01
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