Perovskites for Supercapacitors

Gamma-induced interconnected networks in microporous activated carbons from palm petiole under NaNO3 oxidizing environment towards high-performance electric double layer capacitors (EDLCs)

“…However, the recorded curve was asymmetric showing a broad reduction peak without a corresponding oxidation peak of equal magnitude, thus indicating some resistance. The similar results to our CV shapes at the lowest scan rate implying pseudocapacitive behavior were reported previously [64][65][66][67] . The explanation for this is that the Faradaic process can occur on both surface and interior of the electrode 68 , and such process is considered slow when compared to non-Faradic, such as EDLC.…”

Performance of sodium-ion supercapattery using LaMnO3 and rGO in non-aqueous electrolyte

“…19 Perovskites have good ionic conductivity and thermal stability owing to the defects associated with the crystal lattice, as well as high electron mobility, and hence they find extensive use as catalysts. 21 Owing to its good stability, ion/electron transport, and redox features, LaMnO 3 has also recently been considered as a supercapacitor electrode 22–26 and as a catalyst for the oxygen reduction reaction. 27,28 For example, Mo et al prepared calcium-doped LaMnO 3 by sol–gel synthesis and found that the supercapacitor device could deliver a specific energy of 7.6 W h kg −1 at a low power density of 160 W kg −1 .…”