Fe2O3-reduced graphene oxide composites synthesized via microwave-assisted method for sodium ion batteries

MgFe2O4/reduced graphene oxide composites as high-performance anode materials for sodium ion batteries

“…7 displays the CV curves of MFO/RGO-2 in the initial 5 cycles scanned in a voltage range of 0-3 V at a scan rate of 0.2 mV s À1 . In the first cathodic scan, an irreversible peak is observed at around 0.75 V, which is ascribed to the formation of SEI film on the surface of electrode [40,41]. In the subsequence cycles, the cathodic peak at 0.55 V can be attributed to the reduction of Fe 3+ to Fe 0 and the formation of amorphous Na 2 O and MgO, which is similar to the processes reported in LIBs [16,19,42,43].…”

“…9(a) shows the cycling performance of MFO, RGO, MFO/ RGO-1, MFO/RGO-2 and MFO/RGO-3 anodes at a current density of 50 mA g À1 . As seen clearly, pure MFO exhibits a relative high initial specific capacity but a poor cycling performance, and its reversible capacity decreases to below 50 mAh g À1 after 30 cycles that is still higher than that of pure Fe 2 O 3 as reported in our previous work [40]. On the contrary, RGO shows an excellent cycling performance and retains a reversible capacity of 136.5 mAh g À1 after 70 cycles without obvious fading.…”

A Novel 2D Porous Print Fabric-like α-Fe2O3 Sheet with High Performance as the Anode Material for Lithium-ion Battery

“…To improve the cycling and rate performances, enormous effort has been devoted to overcome these shortcomings [15,16]. The methods include downsizing particles [17], carbon coating [18], and constructing hybrid nanocomposites [19], etc.. Due to the synergistic effect between Fe 2 O 3 and RGO, the composite became a potential electrode material for SIBs (sodium ion batteries) [20]. Wang et al prepared interconnected α-Fe 2 O 3 nanosheet arrays on Ti foil via a facile galvanostatic electrodeposition method and thermal treatment.…”

Scalable synthesis and superior performance of TiO2-reduced graphene oxide composite anode for sodium-ion batteries

“…At present, carbon materials [15][16][17][18], alloys [19,20], metal oxides, and sulfides have been reported as anode materials for SIBs [9,21,22]. Among them, TiO 2 is considered to be a promising material due to its excellent chemical stability, easy fabrication, low cost, and no toxicity [23][24][25][26][27][28].…”