1. A novel Cr2O3-carbon composite as a high performance pseudo-capacitor electrode material.
- Author
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Ullah, Shaheed, Khan, Inayat Ali, Choucair, Mohammad, Badshah, Amin, Khan, Ishtiaq, and Nadeem, Muhammad Arif
- Subjects
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CHROMIUM oxide , *CARBON composites , *CAPACITORS , *NANORIBBONS , *ANALYTICAL chemistry , *ELECTRIC capacity , *NANOCOMPOSITE materials - Abstract
Novel graphitic material containing chromium oxide (Cr 2 O 3 ) nanoribbons is obtained by carbonizing a mixture of polyfurfuryl alcohol and MIL–101(Cr) at 900 °C. Morphological, structural, and chemical analysis of the product is carried out with HR–TEM, SEM, XPS, XRD, and BET surface area. The maximum BET surface area recorded for the nanocomposite is 438 m 2 g −1 . The nanocomposite exhibits a specific capacitance as high as 300 F g −1 at 2 mV s −1 and 291 F g −1 at 0.25 A g −1 , and presents 95.5% long–term cycling stability over 3000 cycles. The pseudo-capacitive role of Cr 2 O 3 nanoribbons is found to be important towards total capacitance of nanocomposite material. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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