کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8044847 | 1518940 | 2016 | 28 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Rapid microwave assisted synthesis of Zn1âxInxO heterostructured nanotetrapods and their hydrogen sensing properties
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
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چکیده انگلیسی
Zn1âxInxO nanostructures have been synthesized in large quantity by a microwave-assisted evaporation method. A mixture of high purity zinc and indium metal flakes evaporated under ambient air using a microwave absorber placed in a conventional microwave oven. This is single step, fast and very effective method to produce large quantity (grams) of Zn1âxInxO nanotetrapods. The synthesized nanotetrapods powder was characterized by X-ray Photoelectron Spectroscopy (XPS), X-ray Diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM), and Transmission Electron Microscopy (TEM). The observations and analyses confirmed the formation of high aspect-ratio nanotetrapods and the incorporation of In into the ZnO creating heterostructure. Hydrogen gas sensor made from the nanotetrapods Zn1âxInxO showed reversible response and recovery. The results are consistent with a sensing mechanism controlled by the presence of a space charge region at the surface of the sensor.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vacuum - Volume 130, August 2016, Pages 159-164
Journal: Vacuum - Volume 130, August 2016, Pages 159-164
نویسندگان
M. Faiz, Ahsanulhaq Qurashi, N. Tabet,