Hierarchical cerium oxide derived from metal-organic frameworks for high performance supercapacitor electrodes

被引：139

作者：

Zeng, Guojin ^{[1
,2
]}

Chen, Ying ^{[1
,2
]}

Chen, Lin ^{[1
,2
]}

Xiong, Peixun ^{[1
,2
]}

Wei, Mingdeng ^{[1
,2
]}

机构：

[1] Fuzhou Univ, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350002, Fujian, Peoples R China

[2] Fuzhou Univ, Inst Adv Energy Mat, Fuzhou 350002, Fujian, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2016年 / 222卷

基金：

高等学校博士学科点专项科研基金; 中国国家自然科学基金;

关键词：

CeO2; alkali treatment; redox couple; supercapacitor; electrochemical property; SOLID-STATE THERMOLYSIS; FACILE SYNTHESIS; CO3O4; COMPOSITE; NANOSTRUCTURES; NANOCOMPOSITE; ELECTROLYTES; ARRAYS; CEO2;

D O I：

10.1016/j.electacta.2016.11.035

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Presented in this report is a new, simple and effective method for synthesizing hierarchical dumbbell shaped CeO2 derived from a Ce-BTC MOF at room temperature. The product was characterized using Xray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopic measurements. When used as an electrode in a supercapacitor with a KOH electrolyte and a K4Fe(CN)(6) redox-active additive, the capacitor exhibited large a specific capacitance, high rate capability and good cycling stability. Capacitances of 779 and 501 F g(-1) were achieved at rates of 1 and 15 A g(-1). Simultaneously, the capacity retention was maintained at nearly 91% after 10000 cycles. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：773 / 780

页数：8

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