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
Novel Single-Crystalline Hierarchical Structured ZnO Nanorods Fabricated via a Wet-Chemical Route: Combined High Gas Sensing Performance with Enhanced Optical Properties
TL;DR: In this paper, hierarchical structured ZnO nanorods have been fabricated via a wet-chemical approach for the development of multifunctional ZNO materials possessing excellent optical and gas sensing properties.
Journal ArticleDOI
Enhanced trimethylamine sensing performance of single-crystal MoO3 nanobelts decorated with Au nanoparticles
TL;DR: In this article, a novel gas sensing material was prepared by decorating Au nanoparticles on MoO3 nanosbelts, which exhibited significantly improved sensing performance in terms of high sensitivity, low detection limit, better selectivity, and rapid response.
Journal ArticleDOI
Synthesis, optical and gas sensitive properties of large-scale aggregative flowerlike ZnO nanostructures via simple route hydrothermal process
TL;DR: In this paper, large-scale aggregative flower-like ZnO nanostructures, consisting of many bunches of nanorods at different orientations with a diameter of about 60nm and a length of 1 µm, were synthesized through a simple hydrothermal process at a lower temperature.
Journal ArticleDOI
Revealing the Relationship between Energy Level and Gas Sensing Performance in Heteroatom-Doped Semiconducting Nanostructures.
TL;DR: Mechanistic study suggests that the elevation of Fermi level increases energy level difference between oxide semiconductor and oxygen molecules and facilitates the surface absorption of oxygen species, resulting in superior formaldehyde sensing activity.
Journal ArticleDOI
Ammonia gas sensors based on ZnO/SiO2 bi-layer nanofilms on ST-cut quartz surface acoustic wave devices
TL;DR: In this article, a surface acoustic wave (SAW) ammonia gas sensors based on ZnO/SiO2 bi-layer nanofilms on ST-cut quartz surface acoustic-wave devices were fabricated and characterized.
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.