Journal ArticleDOI
Nanopillar ZnO gas sensor for hydrogen and ethanol
Reads0
Chats0
TLDR
Aligned zinc oxide nanorods were synthesized directly via a two-step solution approach on an Al2O3 tube, and were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM) as mentioned in this paper.Abstract:
Aligned zinc oxide nanorods were synthesized directly via a two-step solution approach on an Al2O3 tube, and were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The zinc oxide nanorods prepared were uniform with diameters of 10–30 nm and lengths about 1.4 μm. The response Sr (= Ra/Rg) of the aligned zinc oxide nanorod sensor reached 18.29 and 10.41 to 100 ppm ethanol and hydrogen, respectively, which was a two-fold increase compared with that reported in literature, demonstrating the potential for developing stable and sensitive gas sensors.read more
Citations
More filters
Journal ArticleDOI
H2 sensing properties of two-dimensional zinc oxide nanostructures
TL;DR: The comparison with one-dimensional ZnO nanowires based structures shows that two-dimensional nanostructures are ideal for gas sensing, due to their tiny thickness, which is comparable to the depletion-layer thickness, and their large cross-section, which increases the base current, thus lowering the limit of detection.
Journal ArticleDOI
Facile fabrication and enhanced gas sensing properties of hierarchical MoO3 nanostructures
TL;DR: In this paper, a hierarchical MoO3 nanostructures were successfully synthesized through the oxidization conversion of hydrothermally synthesized MoS2 precursors, which showed superior gas sensing performance towards ethanol and it maybe has potential application in the detection of ethanol vapors.
Journal ArticleDOI
Schottky-contacted vertically self-aligned ZnO nanorods for hydrogen gas nanosensor applications
TL;DR: In this article, the authors used RF magnetron sputtering technique to grow ZnO nanorods on Si(100) substrate using X-ray diffraction to obtain high crystalline and optical quality of ZnOs and very low defect density.
Journal ArticleDOI
Co3O4-loaded ZnO nanofibers for excellent hydrogen sensing
TL;DR: In this paper, a series of Co3O4-loaded ZnO nanofibers with the formula (1-x)ZnO-xCo3O 4 (x = 0.03, 0.05,0.1, and 0.15) were synthesized via electrospinning to improve the H2-sensing properties of pristine nanofiber.
Journal ArticleDOI
A hydrogen/methane sensor based on niobium tungsten oxide nanorods synthesised by hydrothermal method
J. Yu,Hui Min Wen,Mahnaz Shafiei,Matthew R. Field,Liu Zhenyu,Wojtek Wlodarski,Nunzio Motta,Yongxiang Li,Kourosh Kalantar-zadeh,P.T. Lai +9 more
TL;DR: In this article, an investigation on hydrogen and methane sensing performance of hydrothermally formed niobium tungsten oxide nanorods employed in a Schottky diode structure is presented.
References
More filters
Journal ArticleDOI
Reversible super-hydrophobicity to super-hydrophilicity transition of aligned ZnO nanorod films
TL;DR: Remarkable surface wettability transition occurs with an inducement of ultraviolet (UV) for aligned ZnO nanorod films and this reversible effect is ascribed to the cooperation of the surface photosensitivity and the aligned nanostructure.
Journal ArticleDOI
Detection of CO and O2 Using Tin Oxide Nanowire Sensors
Journal ArticleDOI
Photochemical Sensing of NO2 with SnO2 Nanoribbon Nanosensors at Room Temperature
TL;DR: The development of photochemical NO2 sensors that work at room temperature and are based on individual single-crystalline SnO2 nanoribbons are reported, which once again demonstrate that seemingly small variations in ligand structure can result in significant improvements in catalysis.
Journal ArticleDOI
Grain size control and gas sensing properties of ZnO gas sensor
TL;DR: In this article, the mean grain size and lattice distortion of ZnO gas sensors were calculated with the Cauchy-Cauchy and Debye-Scherrer methods, respectively.