Novel rhombus-shaped cerium oxide sheets as a highly durable methanol oxidation electrocatalyst and high-performance supercapacitor electrode material

Enhanced electrochemical performance of Ce-MOF/h-CeO2 composites for high-capacitance energy storage applications

“…The CV curves obtained at different scan rates (10,20,30,40,50, and 100 mV s −1 ) for h-CeO 2 , Ce-MOF, Ce-MOF/h-CeO 2 -1, and Ce-MOF/h-CeO 2 -2 are shown in Fig. 5(a)-(d).…”

“…Cerium oxide (CeO 2 ), known as ceria, is noted for its affordability, non-toxicity, abundance, and ability to undergo reversible transitions between Ce 3+ and Ce 4+ states, alongside high oxygen storage capacity, 29 making it suitable for supercapacitor applications. Reported 30 specific capacitance of cerium oxide sheets is 481 F g −1 at a scan rate of 5 mV s −1 , retaining about 83% capacity after 500 cycles. Transition metal-doped MOFs have shown promise as supercapacitor electrodes, with specific capacitance values ranging significantly.…”