Electrospun one-dimensional nanostructures: a new horizon for gas sensing materials

被引:39
作者
Imran, Muhammad [1 ,2 ]
Motta, Nunzio [1 ,2 ]
Shafiei, Mahnaz [1 ,2 ,3 ]
机构
[1] QUT, Inst Future Environm, Brisbane, Qld 4001, Australia
[2] QUT, Sch Chem Phys & Mech Engn, Brisbane, Qld 4001, Australia
[3] Swinburne Univ Technol, Fac Sci Engn & Technol, Hawthorn, Vic 3122, Australia
来源
BEILSTEIN JOURNAL OF NANOTECHNOLOGY | 2018年 / 9卷
基金
澳大利亚研究理事会;
关键词
1D nanostructures; conductometric devices; electrospinning; gas sensors; optical sensors; resonators; SNO2 HOLLOW NANOFIBERS; QUARTZ-CRYSTAL MICROBALANCE; TUNGSTEN-OXIDE NANOFIBERS; HIGHLY SENSITIVE DETECTION; VISIBLE-LIGHT ACTIVATION; POROUS IN2O3 NANOTUBES; COMPOSITE NANOFIBERS; FACILE SYNTHESIS; WO3; NANOFIBERS; ZNO NANOFIBERS;
D O I
10.3762/bjnano.9.202
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Electrospun one-dimensional (1D) nanostructures are rapidly emerging as key enabling components in gas sensing due to their unique electrical, optical, magnetic, thermal, mechanical and chemical properties. 1D nanostructures have found applications in numerous areas, including healthcare, energy storage, biotechnology, environmental monitoring, and defence/security. Their enhanced specific surface area, superior mechanical properties, nanoporosity and improved surface characteristics (in particular, uniformity and stability) have made them important active materials for gas sensing applications. Such highly sensitive and selective elements can be embedded in sensor nodes for internet-of-things applications or in mobile systems for continuous monitoring of air pollutants and greenhouse gases as well as for monitoring the well-being and health in everyday life. Herein, we review recent developments of gas sensors based on electrospun 1D nanostructures in different sensing platforms, including optical, conductometric and acoustic resonators. After explaining the principle of electrospinning, we classify sensors based on the type of materials used as an active sensing layer, including polymers, metal oxide semiconductors, graphene, and their composites or their functionalized forms. The material properties of these electrospun fibers and their sensing performance toward different analytes are explained in detail and correlated to the benefits and limitations for every approach.
引用
收藏
页码:2128 / 2170
页数:43
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