Journal ArticleDOI
Nanopillar ZnO gas sensor for hydrogen and ethanol
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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
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Self-seeded electrochemical growth of ZnO nanorods using textured glass/Al-doped ZnO substrates
TL;DR: In this paper, large and dense arrays of zinc oxide (ZnO) nanorods (NRs) were fabricated by an improved template-free electrodeposition (ECD) route on top of home-made Al-doped ZnO (AZO) thin filmsdeposited on glass.
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Gas sensitivity and sensing mechanism studies on ZnO/La0.8Sr0.2Co0.5Ni0.5O3 heterojunction structure
TL;DR: In this article, a high sensitivity carbon monoxide (CO) sensor with ZnO/La0.8Sr0.2Co0.5Ni0.3 perovskite film was successfully prepared.
Journal ArticleDOI
Counterpoise-corrected energies, NBO, HOMO–LUMO and interaction energies of poly(o-aminophenol) for ammonia sensing by DFT methods
TL;DR: In this paper, the response of poly( o -aminophenol) (POAP) both in doped and undoped forms toward NH 3 gas was investigated on the basis of density functional theory (DFT) at B3LYP and UB3lyP/6-31G* level of theory.
Journal ArticleDOI
Light Trapping-Mediated Room-Temperature Gas Sensing by Ordered ZnO Nano Structures Decorated with Plasmonic Au Nanoparticles.
Poulomi Chakrabarty,Meneka Banik,Narendar Gogurla,Sumita Santra,Samit K. Ray,Rabibrata Mukherjee +5 more
TL;DR: An ordered array of 1D ZnO nanorods obtained by colloidal templating is shown to dramatically enhance the sensing response of NOx at room temperature by confining light and creating periodic structures to lead to new opportunities in the visible light-activated room-temperature NOx sensors for healthcare applications.
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Synthesis and characterization of magnesium doped ZnO nanostructures: methane (CH 4 ) detection
TL;DR: In this paper, the synthesis of magnesium doped zinc oxide nanostructures has been carried out by vapor transport method and characterization of the samples have been performed regarding methane (CH4) gas sensing in addition to their structural, morphological, chemical composition and optical properties.
References
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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.
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Detection of CO and O2 Using Tin Oxide Nanowire Sensors
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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.
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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.