One-pot co-precipitation synthesis of Fe3O4 nanoparticles embedded in 3D carbonaceous matrix as anode for lithium ion batteries

Carbon-incorporated Fe3O4 nanoflakes: high-performance faradaic materials for hybrid capacitive deionization and supercapacitors

“…The spin orbits of Fe 2p 1/2 and Fe 2p 3/2 can be further divided into two peaks, implying the presence of Fe 2+ and Fe 3+ . 25 The high-resolution O 1s spectrum (Fig. 4c) can be fitted into three peaks corresponding to the Fe-O bond at 530.2 eV, the C-O bond at 531.4 eV, and the O-H bond at 533.0 eV.…”

Nano‐Ferric Oxide Embedded in Graphene Oxide: High‐performance Electrocatalyst for Nitrogen Reduction at Ambient Condition

“…The peaks of Fe 2p and Fe 3p are observed in Fe 3 O 4 @rGO (Figure ), and the Fe 2p XPS spectrum (Figure ) can be deconvoluted into Fe 2+ (710.8 and 723.2 eV), Fe 3+ (712.2 and 725.9 eV), and the weak satellite peaks at 719 and 733 eV. [ 35 ] In the high‐resolution C 1s XPS spectrum (Figure ), the peaks can be deconvoluted into 288.4 eV (C = O), 286.2 eV (C‐O) and 284.5 (C‐C/C = C). As shown in the XPS O 1s spectrum (Figure 1e), it can be deconvoluted into 533.0 eV (C‐O), 531.9 eV (C = O), and 530.2 eV (Fe‐O‐C).…”

Aligned Ferric Oxide/Graphene with Strong Coupling Effect for High-Performance Anode

“…16,17 Additionally, a huge volume change at (de)lithiation causes the pulverization of Fe 3 O 4 leading to the rapid attenuation of the capacity. 18,19 Learning from the coupling effect of interfacial engineering, the electronic coupling effect would form an imbalanced electric field. 20−26 For example, Chen et al reported that the cobalt sulfide was strongly coupled with graphene, and the hybrid exhibited an excellent charge transfer ability.…”