Hydrothermal synthesis of Fe₃O₄/RGO composites and investigation of electrochemical performances for energy storage applications

Abstract

Highly porous nano-structured Fe3O4 particles were successfully prepared on the surface of reduced graphene oxide (RGO) sheets through a one-step hydrothermal method.

Self Charging Sulfanilic Acid Azocromotrop/Reduced Graphene Oxide Decorated Nickel Oxide/Iron Oxide Solar Supercapacitor for Energy Storage Application

“…4, respectively. The peaks at 715.1 and 728.5 eV are ascribed to the Fe 2p3/2 and Fe 2p1/2, respectively [7,12]. The peaks at 860 and 877.1 eV are ascribed to the Ni 2p3/2 and Ni 2p1/2, respectively.…”

“…The NiO store charges by following the reversible redox mechanism NiO + OH − ↔ NiOOH + e − [7]. On the other hand Fe 3 O 4 store the charge following the inter conversion between the Fe(II) and Fe(III) states [12]. It is expected that the synergistic effect of both EDLC and pseudocapacitance from RGO and NiO/Fe 3 O 4 may enhance the overall electrochemical properties of the SSC device.…”

Synthesis, characterization and adsorption properties of magnetite/reduced graphene oxide nanocomposites

“…Various approaches have been used to prepare MRGO nanocomposites, such as co-precipitation method [9][10][11], solvothermal method [12][13][14][15], hydrothermal method [16][17][18][19][20], in situ chemical method [21,22], covalent bonding method [23,24], gas/liquid interface method [25] and electrochemical method [8,26]. Each of these methods has indisputable advantages and disadvantages.…”

In situ preparation of a SAC-RGO@Ni electrode by electrochemical functionalization of reduced graphene oxide using sulfanilic acid azocromotrop and its application in asymmetric supercapacitors

“…1,9 Generally, materials with pseudo-nature are used as positive electrode materials. 1,2,7,[10][11][12][13] The surface modication also prevents the restacking of graphene layers and increases the effective surface area providing good ionic exchange with the electrolyte. 1,2,9 Furthermore, different covalent and non-covalent surface modications of reduced GO (RGO) can provide pseudocapacitance along with EDLC.…”