کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7142653 | 1462052 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Highly sensitive amperometric Nafion-based CO sensor using Pt/C electrodes with different kinds of carbon materials
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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: Highly sensitive amperometric Nafion-based CO sensor using Pt/C electrodes with different kinds of carbon materials Highly sensitive amperometric Nafion-based CO sensor using Pt/C electrodes with different kinds of carbon materials](/preview/png/7142653.png)
چکیده انگلیسی
In this paper, a novel amperometric CO sensor using Nafion and Pt/C composite electrodes was fabricated. Three kinds of carbon materials (carbon fibers, multiwall carbon nanotubes and carbon blacks) were utilized as the supports of the sensing and reference electrodes for the CO sensors. The results revealed that the effective Pt loadings on the electrodes increased in the following order: carbon fibers (CFs) > multiwall carbon nanotubes (MWCNTs) > carbon blacks (CBs), leading to the increasing of the sensitivities toward CO in same order. In other words, the sensor using Pt/CFs as the sensing electrode (SE) showed the highest sensitivity with the value of 0.077 μA/ppm and shortest response time in the range of CO concentration from 1 to 200 ppm at room temperature. Further, a reproducible and stable response against 50 ppm CO was obtained for the sensor with Pt/CFs SE materials. Moreover, a low detection limit of 0.1 ppm for CO was also examined, suggesting that the sensor can be convenient for detecting very low traces of CO.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 239, February 2017, Pages 696-703
Journal: Sensors and Actuators B: Chemical - Volume 239, February 2017, Pages 696-703
نویسندگان
Yehui Guan, Fangmeng Liu, Bin Wang, Xue Yang, Xishuang Liang, Hui Suo, Peng Sun, Yanfeng Sun, Jian Ma, Jie Zheng, Yue Wang, Geyu Lu,