A novel Cr 2 O 3 -carbon composite as a high performance pseudo-capacitor electrode material

Autor:	Inayat Ali Khan, Mohammad Choucair, Muhammad Nadeem, Amin Badshah, Ishtiaq Khan, Shaheed Ullah
Rok vydání:	2015
Předmět:	Nanocomposite Materials science Carbonization General Chemical Engineering Composite number chemistry.chemical_element Nanotechnology Capacitance law.invention Capacitor X-ray photoelectron spectroscopy chemistry Chemical engineering law Electrochemistry Carbon BET theory
Zdroj:	Electrochimica Acta. 171:142-149
ISSN:	0013-4686
DOI:	10.1016/j.electacta.2015.04.179
Popis:	Novel graphitic material containing chromium oxide (Cr2O3) 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 m2 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 Cr2O3 nanoribbons is found to be important towards total capacitance of nanocomposite material.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a83b31aacb3873870762252777328142 https://doi.org/10.1016/j.electacta.2015.04.179 Zobrazit plný text záznamu Full Text from ScienceDirect