Superior electrochemical performance of metal ligand framework-neodymium oxide composite for energy storage devices

• Published in: Journal of electroanalytical chemistry (Lausanne, Switzerland) Vol. 963; p. 118305
• Main Authors: Iqbal, Muhammad Zahir, Khizar, Asma, Shaheen, Misbah, Dahshan, A., Badi, Nacer, Dastgeer, Ghulam, Wabaidur, Saikh Mohammad
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15.06.2024
• Subjects: Batteries; Electrode materials; Hybrid supercapacitor; MOFs; Oxide; Supercapacitors; Oxide; Supercapacitors; Electrode materials; Batteries; MOFs; Hybrid supercapacitor
• ISSN: 1572-6657; 1873-2569
• DOI: 10.1016/j.jelechem.2024.118305

[Display omitted] •Battery grade electrode composite comprising Nd2O3 and MOF is explored.•The synergistic effect of composite is investigated for energy storage applications.•The hybrid device attains energy (91 Wh/kg) and power of (5950 W/kg) respectively. Battery supercapacitor hybrids are gaining increasing importance in the realm of energy storage, driven by their exceptional electrochemical attributes, where the choice of electrode material emerges as a paramount factor for their efficacy. Here the enhancement in the electrochemical activity from the synergistic effect produced by combining copper benzene tetra carboxylate with neodymium oxide (Cu-1,3,5-BTC/Nd2O3) along with the individual samples Cu-1,3,5-BTC, and Nd2O3, is studied via various electrochemical measurements which includes CV, GCD and EIS in half cell assembly and for real-world applications in full cell assembly. The hybrid device achieved a specific capacity (Qs) of 390 C/g with an energy density (Es) of 91 Wh/kg and power density (Ps) of 5950 W/kg respectively. Semi-empirical approaches such as linear and quadratic models were further employed and compared to scrutinize the CV curves and to deconvolute the capacitive and diffusive contribution.