One-dimensional nitrogen-doped carbon nanotube arrays fabricated by template carbonization over anodized TiO2 nanotube arrays

被引：9
作者：
Cheng, Lin [1 ]
Li, Yuanyuan [1 ]
Liu, Yilin [1 ]
Wang, Jiao [1 ]
Chen, Rongsheng [1 ]
Ni, Hongwei [1 ]
机构：
[1] Wuhan Univ Sci & Technol, Inst Adv Mat & Nanotechnol, State Key Lab Refractories & Met, Sch Chem & Chem Engn, Wuhan 430081, Hubei, Peoples R China
来源：
MATERIALS LETTERS | 2019年 / 256卷
关键词：
Template carbonization; Nitrogen-doping; Graphitic edge planes; TiO2 nanotube arrays; Carbon materials; Porous materials; GRAPHENE; ION; CO2;
D O I：
10.1016/j.matlet.2019.126602
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Template carbonization of polypyrrole nanofilm coated on TiO2 nanotube arrays is proposed to fabricate one-dimensional nitrogen-doped carbon nanotube arrays (N-CNTAs) without using any foreign catalyst. Ultra-thin nitrogen-doped carbon nanofilm with thickness of 1 similar to 2 nm is formed on the wall of TiO2 nanotubes. The N-CNTAs possess high density of graphitic edge planes and exhibit an ideal Nernst behavior towards [Fe(CN)(6)](3/4) redox couple. Determination of dopamine has been demonstrated in the linear range of 5-175 mu M with a detection limit of 0.19 mu M (S/N = 3). Selective monitoring of uric acid with a linear range of 0.1-150 mu M in the coexistence of 1 mM ascorbic acid has also been illustrated. (C) 2019 Elsevier B.V. All rights reserved.
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页数：5
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