Fabrication of a new polyaniline grafted multi-wall carbon nanotube
May 2, 2010 by AboutNanoWires.com · Leave a Comment
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This digital document is a journal article from Analytica Chimica Acta, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
A modified electrode is fabricated by grafting polyaniline (PANI) chains onto multiwalled carbon nanotube (MWNT) for the detection of hydrogen peroxide (H”2O”2). PANI grafted MWNT modified electrode (PANI-g-MWNT-ME) displays excellent electrocatalytic response to the detection of H”2O”2 in a concentration range of (1.0-20)x10^-^8M showing linear response to current, with an extended lower detection limit down to 1nM. This modified electrode exhibits an accelerated electron transfer at the interface with minimized surface fouling and surface renewability. Further, electrochemical analysis of H”2O”2 performed in the presence of common interferents such as uric acid, ascorbic acid and acetaminophen with the modified electrode reveals that there is no overlapping signal from the interferents. The combined presence of MWNT and PANI in the modified electrode provides high sensitivity and selectivity.
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