Two-dimensional perovskite LaNiO3 nanosheets with hierarchical porous structure for high-rate capacitive energy storage

Synthesis of LaMnO3-reduced graphene oxide or Sr composite and their application in electrochemical properties

“…It reveals that the LaMnO 3 at 900°C has the better specific capacitance value. According to this results, the result can be obtained by the formula: (mAh/g) is the specific capacitance, I (mA) represents the response discharge current, Δ t (s) is the discharge time, m (g) is the mass of the active material [3,5,23]. Figure 3(b) illustrates the specific capacitance of LaMnO 3 electrode as a function of current density.…”

“…The energy storage performances of supercapacitors mainly depend on the electrode materials [1,2]. In generally, three categories electrode materials are carbon materials, transition-metal oxide and conducting polymers respectively [2][3][4][5]. Carbon material is one of the important electrode materials due to their high electrical conductivity and stability.…”

“…However, the energy density in carbon materials is very low. Transition-metal oxides materials are widely applied as supercapacitor electrode materials due to their good thermal stability, high energy density, and the low cost [5][6][7][8][9][10][11].…”

“…15 MnO 3 have been discussed as supercapacitor electrodes using the solegel method [2,[14][15][16][17]. However, the effect of the calcination temperature and time in the fabricating samples as electrode materials of supercapacitors is blurry [3,5,17,18]. To improve the properties of electrochemical energy storage device, In addition, rGO is a two-dimensional carbon nanostructure with excellent electrical conductivity and physicochemical stability.…”

Diaminopyrene modified reduced graphene oxide as a novel electrode material for excellent performance supercapacitors

“…What's more, the selected-area electron diffraction (SAED) pattern of DAPrGO1 materials with a well-dened rings indicated that a porous nanostructure and with a good crystallinity. 37,38 These porous nanostructures with thin layers not only facilitated the diffusion and transmission of ions, but also provided more storage sites and reaction sites, which have great advantages and potential in the eld of energy storage.…”