Novel Supercapacitor Electrode Derived from One Dimensional Cerium Hydrogen Phosphate (1D-Ce(HPO(4))(2).xH(2)O)

In this manuscript, we are reporting for the first time one dimensional (1D) cerium hydrogen phosphate (Ce(HPO(4))(2).xH(2)O) electrode material for supercapacitor application. In short, a simple hydrothermal technique was employed to prepare Ce(HPO(4))(2).xH(2)O. The maximum surface area of 82 m(2) g(−1) was obtained from nitrogen sorption isotherm. SEM images revealed Ce(HPO(4))(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(HPO(4))/NF electrode material in a three-electrode configuration. Furthermore, the fabricated symmetric supercapacitor (SSC) based on Ce(HPO(4))(2).xH(2)O//Ce(HPO(4))(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).