کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1259226 | 971667 | 2015 | 7 صفحه PDF | دانلود رایگان |
Well crystalline gadolinium oxide (Gd2O3) nanostructures were grown by annealing the hydrothermally as-prepared nanostructures without using any template. Microscopic studies of Gd2O3 nanostructures were recorded along the [111] direction due to the clearly resolved interplanar distance d(222)∼0.31 nm of the cubic crystal structure Gd2O3. Sensing mechanism of Gd2O3 as efficient electron mediator for the detection of ethanol was explored. As-fabricated sensor demonstrated the high-sensitivity of ∼0.266 μAm/M/cm2 with low detection limit (∼52.2 μmol/L) and correlation coefficient (r2, 0.618). To the best of our knowledge, this was the first report for the detection of ethanol using as-grown (at 1000 °C) Gd2O3 nanostructures by simple and reliable I-V technique and rapid assessment of the reaction kinetics (in the order of seconds). The low cost of the starting reagents and the simplicity of the synthetic route made it a promising chemical sensor for the detection of various toxic analytes, which are not environmentally safe.
Graphical AbstractDetection of ethanol using Gd2O3 nanostructures by simple and reliable I-V technique and rapid assessment of the reaction kinetics has been investigatedFigure optionsDownload as PowerPoint slide
Journal: Journal of Rare Earths - Volume 33, Issue 2, February 2015, Pages 214–220