Journal ArticleDOI
Nanopillar ZnO gas sensor for hydrogen and ethanol
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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
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ZrO2/CeO2-Heterostructured Nanocomposites for Enhanced Carbon Monoxide Gas Sensing
Nayeem Ahmad Pandit,Tokeer Ahmad +1 more
TL;DR: In this paper , the morphology and structural characteristics of the as-synthesized metal oxides and nanocomposites were investigated by X-ray diffraction, scanning electron microscopy, and transmission electron microscope studies.
Book ChapterDOI
A Novel Sensing Method for VOCs Using Nanoparticle-Coated Nanoporous Silicon
TL;DR: In this paper, a novel method for sensing of VOCs using porous silicon coated with a layer of ZnO (PS-ZnO) was discussed, which increased the selectivity due to the increase in surface-to-volume ratio and uniformity in the pore structures.
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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.