Synthesis of nitrogen-doped carbon and application in highly selective and sensitive dopamine sensing

被引：12
作者：
Kang, Wenjun [1 ,2 ,3 ,4 ]
Li, Haibo [1 ,2 ]
Ai, Man [1 ,2 ]
Wei, Shenying [1 ,2 ]
Gao, Huaizhi [1 ,2 ]
Liu, Jifeng [1 ,2 ]
Qian, Yitai [3 ,4 ]
机构：
[1] Liaocheng Univ, Shandong Prov Key Lab Chem Energy Storage & Novel, Liaocheng 252059, Peoples R China
[2] Liaocheng Univ, Dept Chem, Liaocheng 252059, Peoples R China
[3] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China
[4] Univ Sci & Technol China, Dept Chem, Hefei 230026, Peoples R China
来源：
MATERIALS LETTERS | 2014年 / 116卷
基金：
中国国家自然科学基金;
关键词：
Carbon materials; Nitrogen-doped carbon; Pyrolysis; Dopamine; Sensor;
D O I：
10.1016/j.matlet.2013.11.073
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Nitrogen-doped carbon (NC) materials were prepared by pyrolyzing pyrrole in the presence of basic magnesium carbonate at 400-700 degrees C. Three kinds of C-N bonding patterns, namely pyridinic-, pyrrolic-, and graphitic-type N, are present in NC products. The pyrolysis temperature has an intensive influence on the contents of three nitrogen species. It is found that NC-700, containing the highest content (3.87 at %) of graphitic-type N, exhibits the best discrimination ability for ascorbic acid (AA), dopamine (DA), and uric acid (UA). Differential pulse voltammetry study reveal that the detection limit (S/N=3) can reach 0.090 mu M for DA even in the presence of 1000 mu M AA and 200 mu M UA. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：374 / 377
页数：4
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