Frogspawn inspired hollow Fe₃C@N–C as an efficient sulfur host for high-rate lithium–sulfur batteries

Abstract

A hollow Fe3C@N–C with frogspawn-like architecture was successfully constructed as an efficient sulfur host for high-rate and long-life lithium–sulfur batteries.

Large Scale Synthesis of Three‐dimensional Hierarchical Porous Framework with High Conductivity and its Application in Lithium Sulfur Battery

“…The CV method is implemented to detect the diffusion characteristics of the HPBC‐ x ( x =0,8,12) cathode Li + at different scan rates of 0.1∼0.3 mV s −1 (In Figure 5). Based on the linear relationship between the peak current of all cathodes and anodes and the square root of the scan rate, [49] the pictures shown in Figure 5f can prove the above points. The Li + diffusion coefficient can be calculated from their previous slopes.…”

The design of phase change materials with carbon aerogel composites for multi-responsive thermal energy capture and storage

“…20,27,28 The peaks of around 399.1 eV, 401.1 eV, 406.1 eV, 531.1 eV and 532.0 eV suggest pyridinic N, graphitic N, N-O, C=O and C-O. [26][27][28] Moreover, the peaks at about 707.6 eV and 710.9 eV confirm the presence of Fe (0) and Fe 3 C. 28,32 which promote the conversion of graphitic carbon and impart magnetic property into the final FCA PCMs composite. 33,34 These characteristic peaks are totally the same with the standard PDF card No.…”

Recent advances of hollow-structured sulfur cathodes for lithium–sulfur batteries

“…10e) was designed and presented as an efficient sulfur host. 137 The Fe 3 C@N-C was obtained by annealing polydopamine (PDA) coated cubic Prussian blue (PB), when the metallike Fe 3 C generated from the PB precursor was encapsulated in nitrogen-doped carbon shells derived from PDA (Fig. 10d).…”

“…(d) Schematic for frogspawn-like hollow Fe 3 C@N-C preparation, (e) TEM image of Fe 3 C@N-C; the inset is the photo of frogspawn, (f) rate-performance of Fe 3 C@N-C/S, super P/S, and N-C/S (nitrogen-doped carbon). Reproduced with permission 137. Copyright 2019 the Royal Society of Chemistry.…”