Novel Supercapacitor Electrode Derived from One Dimensional Cerium Hydrogen Phosphate (1D-Ce(HPO4)2.xH2O)

In this manuscript, we are reporting for the first time one dimensional (1D) cerium hydrogen phosphate (Ce(HPO4)(2).xH(2)O) electrode material for supercapacitor application. In short, a simple hydrothermal technique was employed to prepare Ce(HPO4)(2).xH(2)O. The maximum surface area of 82 m(2) g(-1) was obtained from nitrogen sorption isotherm. SEM images revealed Ce(HPO4)(2).xH(2)O 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).xH(2)O//Ce(HPO4)(2).xH(2)O 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).

Automated summary

In this manuscript, we report for the first time the use of one-dimensional cerium hydrogen phosphate as an electrode material for supercapacitors. The material was prepared using a simple hydrothermal technique. The resulting material exhibited a high specific surface area and a nanorod-like structure. In a three-electrode configuration, the material showed a high specific capacitance. Furthermore, a symmetric supercapacitor fabricated using this material demonstrated reasonable specific energy, moderate specific power, and outstanding cyclic durability.