期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 357, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2022.131466
关键词
Metal oxides; metal-organic frameworks; Graphene; Transition metal dichalcogenides; Nanowires; 2-Dimensional materials; Chemical sensors; Gas sensors
资金
- NATO Science for Peace and Security Programme under Advanced ElectroOptical Chemical Sensors [G5634]
- Special Integrative Fund for Research (FISR), Ministry of University and Research (MUR), Italy
- Smart Cities and Communities and social innovation project
This article provides an overview of the synthesis and sensing properties of metal oxide nanowires and two-dimensional semiconductor nanostructures in gas sensing technologies. By discussing the current achievements and issues, as well as the opportunities and challenges for future fabrication of high performance and small size gas sensing devices, it offers insights into the development of advanced gas detection systems.
There is a great interest in portable gas sensing technologies to provide real-time monitoring of indoor and outdoor air quality as well as the human health diagnostics. One-dimensional metal oxide nanowires have demonstrated improved properties compared to the conventional thick film gas sensors. Furthermore, twodimensional semiconductor nanomaterials have shown great promise for the development of high performance functional devices owing to their unique physical, chemical and electrical characteristics. Hence, they become one of the most investigated structures for the fabrication of detection systems. Herein, we present an overview of the synthesis and sensing properties of metal oxide nanowires and two-dimensional semiconductor nanostructures such as metal-organic frameworks, graphene and transition metal dichalcogenides. We discuss the current achievements and issues in the preparation of pure, doped and composite materials comprising metal oxide nanowires and two-dimensional semiconductors. Then, we discuss the advances in gas sensing performances of the aforementioned materials considering their morphology, compositions and structure. Afterward, we provide a brief summary along with the opportunities and challenges for future fabrication of high performance and small size gas sensing devices.
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