Novel Supercapacitor Electrode Derived from One Dimensional Cerium Hydrogen Phosphate (1D-Ce(HPO<sub>4</sub>)<sub>2</sub>.xH<sub>2</sub>O)
Jong Hee Yoon,
Bak Jinsoo,
Inho Cho,
Rajangam Vinodh,
Bruno G. Pollet,
Rajendran Suresh Babu,
Hee-Je Kim,
Sungshin Kim
Affiliations
Jong Hee Yoon
Department of Electrical and Computer Engineering, Pusan National University, Busan 46241, Korea
Bak Jinsoo
Department of Electrical and Computer Engineering, Pusan National University, Busan 46241, Korea
Inho Cho
Department of Electrical and Computer Engineering, Pusan National University, Busan 46241, Korea
Rajangam Vinodh
Department of Electrical and Computer Engineering, Pusan National University, Busan 46241, Korea
Bruno G. Pollet
Green Hydrogen Lab (GH2Lab), Institute for Hydrogen Research (IHR), Université du Québec à Trois-Rivières (UQTR), 3351 Boulevard des Forges, Trois-Rivières, QC G9A 5H7, Canada
Rajendran Suresh Babu
Laboratory of Experimental and Applied Physics, Centro Federal de Educação Tecnológica Celso Suckow da Fonseca, Av. Maracanã Campus 229, Rio de Janeiro 20271-110, Brazil
Hee-Je Kim
Department of Electrical and Computer Engineering, Pusan National University, Busan 46241, Korea
Sungshin Kim
Department of Electrical and Computer Engineering, Pusan National University, Busan 46241, Korea
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).
