کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7139918 | 1462023 | 2018 | 35 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effective hydrogen gas sensor based on NiO@rGO nanocomposite
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effective hydrogen gas sensor based on NiO@rGO nanocomposite Effective hydrogen gas sensor based on NiO@rGO nanocomposite](/preview/png/7139918.png)
چکیده انگلیسی
A NiO@rGO nanocomposite is prepared by a freeze-drying method combined with heat treatment. The morphology and structure are analyzed through X-ray diffraction, scanning electron microscopy, transmission electron microscopy, Raman spectra, and X-ray photoelectron spectroscopy. The results clearly show that NiO nanoparticles are uniformly anchored on the surface of the rGO nanosheet. The gas-sensing performance of the nanocomposite is also investigated to detect hydrogen. The NiO@rGO sensor exhibits good gas-sensing performance with high sensitivity, fast response, good reversibility, and selectivity toward hydrogen. The relative response of the sensor to 1% hydrogen is 0.64, the response time is 28â¯s, and the recovery time is 142â¯s. The improved sensing performance is due to the effective electron transfer between the NiO nanoparticles and rGO nanosheet.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 266, 1 August 2018, Pages 506-513
Journal: Sensors and Actuators B: Chemical - Volume 266, 1 August 2018, Pages 506-513
نویسندگان
Haibo Ren, Cuiping Gu, Sang Woo Joo, Jingjuan Zhao, Yufeng Sun, Jiarui Huang,