화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.19, No.8, 764-769, August, 2011
DOI10.1007/s13233-011-0802-3  Export Citation
Electrochemical Grafting of Poly(2,5-dimethoxy aniline) onto Multiwalled Carbon Nanotubes Nanocomposite Modified Electrode and Electrocatalytic Oxidation of Ascorbic Acid
Dhanusuraman Ragupathy†, Jung Je Park, Soo Chool Lee, Jae Chang Kim, Palanisamy Gomathi1, Min Kwan Kim1, So Min Lee1, Han Do Ghim1, †, Annamalai Rajendran2, Sang Hak Lee3, and Kyung Moon Jeon4
  • Department of Chemical Engineering, Kyungpook National University, Daegu, 702-701, Korea
  • 1Department of Textile System Engineering, Kyungpook National University, Daegu, 702-701, Korea
  • 2Department of Chemistry, Sir Theagaraya College, Chennai, 600021, Tamil Nadu, India
  • 3Department of Chemistry, Kyungpook National University, Daegu, 702-701, Korea
  • 4Department of Science Education, Gwangju National University, Gwangju, 500-703, Korea
E-mail:,
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.
Keywords:electroactivity;MWNT;grafting;2,5-dimethoxyaniline;ascorbic acid.
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