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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
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Selective acetone sensor based on dumbbell-like ZnO with rapid response and recovery
TL;DR: Dumbbell-like ZnO microcrystals have been obtained through a facile solution method as mentioned in this paper, which exhibited excellent sensing properties against acetone at an operating temperature of 300 °C.
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Photoluminescence investigation on the gas sensing property of ZnO nanorods prepared by plasma-enhanced CVD method
TL;DR: In this article, the gas sensing property of ZnO nanorods prepared by plasmaenhanced chemical vapor deposition (CVD) method is studied using formaldehyde as the probe gas, and the intrinsic defects are investigated by photoluminescence (PL).
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Evaluating the doping effect of Fe, Ti and Sn on gas sensing property of ZnO
TL;DR: In this article, the gas response maxima of pure ZnO to 205 ppm formaldehyde is similar to 43 (at relative humidity 70 +/- 10%) at 400 degrees C, while that of Sn-ZnO is always higher.
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Recent advances in electronic and bioelectronic noses and their biomedical applications.
TL;DR: Recent advances in the development of electronic and bioelectronic noses and their biomedical applications are reviewed in this article.
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Acetone sensing of ZnO nanosheets synthesized using room-temperature precipitation
TL;DR: In this paper, a facile precipitation method was used to synthesize zinc oxide (ZnO) nanosheets at room temperature without any template, surfactant or organic solvent, which demonstrated an effective strategy for surface defect engineering to improve the metal oxide semiconductor gas sensing performance.
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.