超级电容器
铈
电容
电极
材料科学
热液循环
纳米棒
磷酸氢
化学工程
比表面积
纳米技术
磷酸盐
化学
催化作用
物理化学
有机化学
冶金
工程类
作者
Jonghee Yoon,Jin-Soo Bak,Inho Cho,Rajangam Vinodh,Bruno G. Pollet,R. Suresh Babu,Sang-Yong Kim,Sungshin Kim
出处
期刊:Molecules
[MDPI AG]
日期:2022-11-09
卷期号:27 (22): 7691-7691
被引量:8
标识
DOI:10.3390/molecules27227691
摘要
In this manuscript, we are reporting for the first time one dimensional (1D) cerium hydrogen phosphate (Ce(HPO4)2.xH2O) electrode material for supercapacitor application. In short, a simple hydrothermal technique was employed to prepare Ce(HPO4)2.xH2O. The maximum surface area of 82 m2 g-1 was obtained from nitrogen sorption isotherm. SEM images revealed Ce(HPO4)2.xH2O exhibited a nanorod-like structure along with particles and clusters. The maximum specific capacitance of 114 F g-1 was achieved at 0.2 A g-1 current density for Ce(HPO4)/NF electrode material in a three-electrode configuration. Furthermore, the fabricated symmetric supercapacitor (SSC) based on Ce(HPO4)2.xH2O//Ce(HPO4)2.xH2O demonstrates reasonable specific energy (2.08 Wh kg-1), moderate specific power (499.88 W kg-1), and outstanding cyclic durability (retains 92.7% of its initial specific capacitance after 5000 GCD cycles).
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