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Polypyrrole/tannin biobased nanocomposite with enhanced electrochemical and physical properties


Citation

Abdi, Mahnaz M. and Mohd Azli, Nur Farhana Waheeda and Lim, Hong Ngee and Md. Tahir, Paridah and Karimi, Gholamreza and Hoong, Yeoh Beng and Khorram, Mohammad (2018) Polypyrrole/tannin biobased nanocomposite with enhanced electrochemical and physical properties. RSC Advances, 8 (2018). 2978 - 2985. ISSN ESSN: 2046-2069

Abstract

In this research, tannin (TA) extracted from Acacia mangium and a cationic surfactant, cetyltrimethylammonium bromide (CTAB), were used to modify and enhance the physical and electrochemical properties of a polypyrrole (PPy) composite. Brunauer–Emmett–Teller (BET) analysis presented a higher degree of surface area and porosity for the PPy/TA/CTAB nanocomposite. A highly porous and rod like structure with a lumpy surface was observed for PPy/TA prepared in the presence of CTAB by Field Emission Scanning Electron Microscopy (FESEM) and Transmission Electron Microscopy (TEM). Cyclic voltammograms of the modified SPE electrode using PPy/TA/CTAB displayed an enhanced current response compared to the electrode modified with only PPy or PPy/TA. Electrochemical Impedance Spectroscopy (EIS) exhibited a lower value of charge transfer resistance (Rct) and higher electron transfer for the modified electrode, making the nanocomposite a promising candidate for biosensor application.


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Additional Metadata

Item Type: Article
Divisions: Institute of Bioscience
Institute of Tropical Forestry and Forest Products
DOI Number: https://doi.org/10.1039/C7RA13378B
Publisher: Royal Society of Chemistry
Keywords: Polypyrrole (PPy); Nanocomposite
Depositing User: Nida Hidayati Ghazali
Date Deposited: 03 Jun 2020 07:16
Last Modified: 03 Jun 2020 07:16
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1039/C7RA13378B
URI: http://psasir.upm.edu.my/id/eprint/73553
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