Randomized trial demonstrates enhanced energy storage in asymmetric supercapacitors using Ni–Mo layered double hydroxides, suggesting improved capacities.
Key Points
This research aims to optimize the morphology of NiMo-Layered Double Hydroxides (LDHs) to enhance their performance as positive electrodes in asymmetric supercapacitors.
Tuning shape and morphology of NiMo-LDHs by varying anion precursors (chloride/nitrate) using in situ hydrothermal method.
Evaluating specific capacity at 1 A g–1 and testing energy/power densities in a hybrid cell design with V2CTx film as negative electrode.
Conducting 10,000 continuous cycle tests to assess capacity retention.
NiMo-LDH (2:1) achieved a specific capacity of approximately 2394 C g–1 at 1 A g–1.
Hybrid cell design provided an energy density of 77.6 Wh kg–1 and a power density of 450 W kg–1.
Over 10,000 cycles, the system retained 125.3% of its initial capacity.