Electrochemical grafting of poly(2,5-dimethoxy aniline) onto multiwalled carbon nanotubes nanocomposite modified electrode and electrocatalytic oxidation of ascorbic acid

被引：0
作者：
Dhanusuraman Ragupathy
Jung Je Park
Soo Chool Lee
Jae Chang Kim
Palanisamy Gomathi
Min Kwan Kim
So Min Lee
Han Do Ghim
Annamalai Rajendran
Sang Hak Lee
Kyung Moon Jeon
机构：
[1] Kyungpook National University,Department of Chemical Engineering
[2] Kyungpook National University,Department of Textile System Engineering
[3] Sir Theagaraya College,Department of Chemistry
[4] Kyungpook National University,Department of Chemistry
[5] Gwangju National University,Department of Science Education
来源：
Macromolecular Research | 2011年 / 19卷
关键词：
electroactivity; MWNT; grafting; 2,5-dimethoxyaniline; ascorbic acid;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A modified electrode was fabricated by grafting poly(2,5-dimethoxyaniline) (PDMA) onto multiwalled carbon nanotubes (MWNTs) and used for the electrocatalytic oxidation of ascorbic acid (AA). Cyclic voltammetry was used to fabricate the modified electrode and demonstrate the electroactivity of MWNT-g-PDMA-ME towards AA. Field emission scanning electron microscopy (FESEM) of MWNT-g-PDMA-ME revealed the combined presence of MWNT and PDMA. The MWNT-g-PDMA-ME exhibited excellent performance for AA at 320 mV with a high sensitivity (12.78 μA/mM) and linear concentration range of 1 to 5 mM (correlation coefficient of 0.9991). Differential pulse voltammetry (DPVs) showed that MWNT-g-PDMA-ME experiences negligible interference from other electro-active components.
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页码：764 / 769
页数：5
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