A novel Cr2O3-carbon composite as a high performance pseudo-capacitor electrode material

被引：66

作者：

Ullah, Shaheed ^{[1
]}

Khan, Inayat Ali ^{[1
]}

Choucair, Mohammad ^{[2
]}

Badshah, Amin ^{[1
]}

Khan, Ishtiaq ^{[1
]}

Nadeem, Muhammad Arif ^{[1
]}

机构：

[1] Quaid I Azam Univ, Dept Chem, Catalysis & Nanomat Lab 27, Islamabad 45320, Pakistan

[2] Univ Sydney, Sch Chem, Sydney, NSW 2006, Australia

来源：

ELECTROCHIMICA ACTA | 2015年 / 171卷

关键词：

capacitance; polyfurfuryl alcohol; nanoribbons; nanocomposite; METAL-ORGANIC FRAMEWORK; ELECTROCHEMICAL STORAGE; TRIVALENT CHROMIUM; REACTION-MECHANISM; CARBON NANOTUBES; SUPERCAPACITORS; ENERGY; OXIDATION; SEPARATION; REDUCTION;

D O I：

10.1016/j.electacta.2015.04.179

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Novel graphitic material containing chromium oxide (Cr2O3) nanoribbons is obtained by carbonizing a mixture of polyfurfuryl alcohol and MIL-101(Cr) at 900 degrees 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 Cr2O3 nanoribbons is found to be important towards total capacitance of nanocomposite material. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：142 / 149

页数：8

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