کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6661515 | 1426551 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Magnetic Co@carbon nanocages for facile and binder-free nitrite sensor
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
In this paper, a novel sensing platform for nitrite based on magnetic Co@carbon nanocages (CoCN) was firstly proposed. The metal organic framework (MOF) of ZIF-67 was calcined in argon atmosphere to prepare magnetic CoCN. The synthesized CoCN was fixed on the surface of magnetic glassy carbon electrode (CoCN/MGCE) to fabricate the sensing platform by its magnetism. This sensing platform has advantages of binder-free and easy preparation. The prepared CoCN/MGCE displayed excellent performance for electrocatalytic oxidation of nitrite. Under the best conditions, the peak current of nitrite on oxidation is linear to its concentration from 5 to 705â¯Î¼M, with a 0.18â¯Î¼M detection limit. The proposed sensor was applied for detecting nitrite in the real sample with 97.0-103.5% recovery range and under 3.6% RSD. The experimental results show that the magnetic CoCN is a novel material for fabricating electrochemical sensing platform.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electroanalytical Chemistry - Volume 824, 1 September 2018, Pages 45-51
Journal: Journal of Electroanalytical Chemistry - Volume 824, 1 September 2018, Pages 45-51
نویسندگان
Xuechou Zhou, Yu Zhou, Zhensheng Hong, Xinyu Zheng, Rixin Lv,