Synthesis of graphene@Fe₃O₄@C core–shell nanosheets for high-performance lithium ion batteries

Abstract

Graphene@Fe3O4@C core–shell nanosheets are synthesized by a one-pot solvothermal method, which are promising candidates as anodes in LIB applications.

Sandwich-like mesoporous graphene@magnetite@carbon nanosheets for high-rate lithium ion batteries

“…The GS@Fe 3 O 4 @C precursor was-prepared by a facial solvothermal process according to previous work reported [35,36]. In typical synthesis process, 22 mg of GO was dispersed into 35 mL of absolute ethanol by sonication for 1 h. Then, 300 mg of ferrocene and 3 mL of nitric acid (15 wt %) were dissolved in the resultant GO solution by stirring for 1 h. The resultant mixture was then transferred into a 50 mL Teflon-lined stainless steel autoclave, sealed, and maintained at 210 C for 24 h in an oven before cooling to room temperature.…”

Graphene-like carbon sheet/Fe3O4 nanocomposites derived from soda papermaking black liquor for high performance lithium ion batteries

“…2h) of an individual Fe3O4 nanoparticle displays its superlattice structure with a larger lattice spacing of 0.98 nm [41]. and 43.1° [22][23][24][25][26][27][28][29][30][31] and the diffraction peaks of β-SiC (PDF#49-1623) with a cubic crystal system [42]. The broad peak indicates that its structure has a high degree of disorder.…”

“…The composite anode materials of graphene and Fe3O4 have been recently explored and show enhanced high capacity and excellent cycling performance of LIBs [25][26][27][28][29][30][31]. However, utilization of the active materials.…”

Etching‐in‐a‐Box: A Novel Strategy to Synthesize Unique Yolk‐Shelled Fe3O4@Carbon with an Ultralong Cycling Life for Lithium Storage

“…The specifi c synthetic strategy for the fabrication of Fe 3 O 4 @C yolk-shelled nanocubes is illustrated in Figure 1 Fe 2 O 3 nanocubes synthesized through a facile and scalable coprecipitation method are used as the precursors. [5][6][7] One effective approach is to design and synthesize hollow nanostructured Fe 3 O 4 -based nanomaterials. [1][2][3][4][5] To address this issue, various strategies have been proposed to improve the electrochemical performance of Fe 3 O 4 -based anodes by tuning the morphology and structure at nanoscale or using carbonaceous materials as the buffer layer.…”