Engineered perovskite LaCoO3/rGO nanocomposites for asymmetrical electrochemical supercapacitor application

Morphological Impact of Perovskite-Structured Lanthanum Cobalt Oxide (LaCoO3) Nanoflakes Toward Supercapacitor Applications

“…These values suggest that charge storage process could be due to a capacitive-combined diffusion process, where the charge storage process is controlled by (i) the surface adsorption of OH – (capacitive) and (ii) the intercalation of O 2– ions into the bulk of the electrode (diffusion-controlled process). To estimate the significant contribution from the capacitive and diffusion-controlled processes, − the power law can be split into two parts, and it can be written as I normalp = k 1 v + k 2 v 1 / 2 where k 1 and k 2 are constants for the fixed potential. In the equation, k 1 v and k 2 v 1/2 represent the surface-capacitive and diffusion-controlled contributions, respectively.…”

Overview of the oxygen vacancy effect in bimetallic spinel and perovskite oxide electrode materials for high-performance supercapacitors

“…3A and B). 74,75 Double perovskite, triple perovskite, and other perovskite-based oxides can be derived by doubling and tripling this general formula. 76,77 Among them, single perovskite-type materials are promising active electrodes in SCs because of their greater tap density, high working potential window, and high capacity.…”

Novel Design of Perovskite-Structured Neodymium Cobalt Oxide Nanoparticle-Embedded Graphene Oxide Nanocomposites as Efficient Active Materials of Energy Storage Devices

“…Previously, the perovskite-type RECoO 3 has been investigated with carbon-based materials in supercapacitor applications. For instance, Vats et al reported the perovskite lanthanum cobaltite and nanocomposite with a reduced GO electrode with improved capacitance and rate capability for asymmetrical electrochemical supercapacitors . Chinnasa et al studied the electrochemical properties of a LaCoO 3 nanofiber-covered carbon nanotube as an electrode material for supercapacitor devices .…”

“…For instance, Vats et al reported the perovskite lanthanum cobaltite and nanocomposite with a reduced GO electrode with improved capacitance and rate capability for asymmetrical electrochemical supercapacitors. 35 Chinnasa et al studied the electrochemical properties of a LaCoO 3 nanofiber-covered carbon nanotube as an electrode material for supercapacitor devices. 36 Isacfranklin et al demonstrated the SmCoO 3 /rGO composite using the solvothermal route, which exhibited good energy and power density.…”