A novel Cr2O3-carbon composite as a high performance pseudo-capacitor electrode material. (20th July 2015)

• Record Type: Journal Article
• Authors: Ullah, Shaheed; Khan, Inayat Ali; Choucair, Mohammad; Badshah, Amin; Khan, Ishtiaq; Nadeem, Muhammad Arif
• Is Part Of: Electrochimica acta. Volume 171(2015)
• Page Start: 142
• Page End: 149
• Publication Date: 2015-07-20
• Subjects: capacitance -- polyfurfuryl alcohol -- nanoribbons -- nanocomposite; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2015.04.179
• Languages: English
• ISSNs: 0013-4686

Abstract

Abstract: Novel graphitic material containing chromium oxide (Cr2 O3 ) 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 Cr2 O3 nanoribbons is found to be important towards total capacitance of nanocomposite material.