Polypyrrole/tannin biobased nanocomposite with enhanced electrochemical and physical properties |
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| Authors: | Mahnaz M. Abdi,Nur Farhana Waheeda Mohd Azli,Hong Ngee Lim,Paridah Md Tahir,Gholamreza Karimi,Yeoh Beng Hoong,Mohammad Khorram |
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| Affiliation: | Department of Chemical Engineering, Shiraz University, Shiraz 7134851154 Iran.; Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang Selangor Malaysia ; Institute of Tropical Forestry and Forest Products, Universiti Putra Malaysia, 43400 UPM Serdang Selangor Malaysia ; Fiber Development Centre, Malaysian Timber Industry Board, Olak Lempit, Banting, Selangor Malaysia |
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| 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.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 polypyrrole (PPy) composite. |
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