Journal ArticleDOI
Tunable ZnO nanostructures for ethanol sensing
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TLDR
In this article, a simple hydrothermal process without using any structure-directing reagent was used to synthesize ZnO nanostructures with different morphologies including nanorods, nanowires, and nanobrushes.Abstract:
In this study, ZnO nanostructures with different morphologies including nanorods, nanowires, and nanobrushes were synthesized by a simple hydrothermal process without using any structure-directing reagent. The samples were characterized by X-ray diffraction, field emission scanning electron microscopy, and transmission electron microscopy. The influence of the preparation parameters on the morphology of ZnO is discussed. Gas-sensing properties of the materials were investigated. The results reveal that all the prepared nanostructured ZnO powders show high response to ethanol, among which, the three-dimensional nanobrushes show the highest response, demonstrating excellent potentiality for ethanol sensors.read more
Citations
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Highly enhanced acetone sensing performances of porous and single crystalline ZnO nanosheets: high percentage of exposed (100) facets working together with surface modification with Pd nanoparticles.
TL;DR: Novel acetone sensors with enhanced response, selectivity and stability have been fabricated successfully by using nanoarchitectures consisting of ZnO nanosheets and Pd nanoparticles.
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High-performance liquefied petroleum gas sensing based on nanostructures of zinc oxide and zinc stannate
TL;DR: In this article, a high-performance LPG sensing based on nanostructures of zinc oxide and zinc stannate is proposed for highperformance liquefied petroleum gas sensing.
Journal ArticleDOI
ZnO hierarchical nanostructures grown at room temperature and their C2H5OH sensor applications
TL;DR: In this article, high crystalline ZnO hierarchical nanostructures were prepared at room temperature through the alkaline hydrolysis of zinc salt by the forced mixing of two immiscible solutions: Zn-nitrate aqueous solution and oleic-acid-dissolved n-hexane solution.
Journal ArticleDOI
Solvent thermal synthesis and gas-sensing properties of Fe-doped ZnO
TL;DR: In this article, a simple solvent thermal process using methanol or ethanol as solvents was studied, and their gas-sensing properties were also investigated, and the morphology of ZnO micro-bullets synthesized in ethanol was similar to but more uniform than that of pure ZnOs microbullets.
Journal ArticleDOI
Flame-spray-made undoped zinc oxide films for gas sensing applications.
TL;DR: Using zinc naphthenate dissolved in xylene as a precursor undoped ZnO nanopowders were synthesized by the flame spray pyrolysis technique and showed a great selectivity towards NO2 at high working temperature, while small resistance variations were observed for C2H5OH and SO2, respectively.
References
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Journal ArticleDOI
Hydrothermal synthesis and gas sensing characters of ZnO nanorods
TL;DR: In this paper, a hydrothermal process with cetyltrimethylammonium bromide (CTAB) and zinc powder at 182 °C was used to produce ZnO nanorods for gas sensors.
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Hydrogen and ethanol sensors based on ZnO nanorods, nanowires and nanotubes
TL;DR: In this article, ZnO nanorods and nanowires were investigated for hydrogen and ethanol sensing characteristics at relatively low temperatures (⩽150°C) specially when impregnated with Pt.
Journal ArticleDOI
Sequential Nucleation and Growth of Complex Nanostructured Films
Thomas L. Sounart,Jun Liu,Jun Liu,James A. Voigt,Julia W. P. Hsu,Erik David Spoerke,Zheng Tian,Yingbing Jiang +7 more
TL;DR: A detailed review of the use of multistage, seeded-growth methods to synthesize a wide range of nanostructures, including oriented nanowires, nanotubes, and nanoneedles, is given in this paper.
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Secondary Nucleation and Growth of ZnO
TL;DR: Kinetic measurements show that the induction time and growth rate increase with increasing diamine concentration and follow classical nucleation and growth theory, which suggests that the narrow window for secondary growth is dictated by the solubility of the ZnO crystals.
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Fabrication of SnO2–ZnO nanocomposite sensor for selective sensing of trimethylamine and the freshness of fishes
Wen-Hui Zhang,Wei-De Zhang +1 more
TL;DR: In this paper, the gas-sensing properties of the SnO2 nanoparticles, ZnO microrods and the nanocomposite of SnO 2 nanoparticles doped with 5-15% Zn O microrod were investigated.