Ultrafast kinetics and high capacity for Stable Sodium Storage enabled by Fe3Se4/ZnSe heterostructure engineering

Hierarchical Self-Assembly Strategy for Scalable Synthesis of Li3VO4/N Doped C Nanosheets for High-Rate Li-Ion Storage

“…Under high magnification (Figure d), it is found that the matrix also consists of numerous nanoparticles of much smaller sizes. The assembly of LVO into big-sized particles and then into nanosheets results in numerous holes, which can provide abundant active sites and guarantee fast electrochemical reaction kinetics. , Such a specific architecture of the LVO@NC NSs stemming from a self-assembly process coincides with the high surface area of 93.5 m 2 g –1 (Figure S4a). Meanwhile, the mean pore size is ∼4 nm (Figure S4b), which may stem from the gaps among various LVO@NC NSs .…”

Research progress on ZnSe and ZnTe anodes for rechargeable batteries

“…Further construction of bimetallic selenides via cation-exchange for ZnSe/Sb 2 Se 3 @NC hollow microspheres, for example, could enhance the Na + ion storage capability and the cycling performance. 120 Some similar works have been published in recent years; these typical structures/composites include ZnSe/CeO 2 /RGO, 89 2D CuGaSe 2 @ZnSe-NC, 65 core-shell or yolk-shell ZnSe/CoSe/@NC or ZnSe/CoSe 2 @NC nanobox/polyhedra, 69,[121][122][123] Fe 3 Se 4 / ZnSe@NC nanospheres and nanocubes, 105,124 CoSe 2 /ZnSe@C nanoparticles, 125 ZnSe/Sb 2 Se 3 @NC hollow microspheres, 120 heterojunction nanoparticles embedded in carbon nanofibers/ nanorods (Cu 2 Se-ZnSe-CNFs, porous ZnSe/CoSe 2 /C, ZnSe/ Co 0.85 Se@NC@C), [126][127][128] ZnSe⊂N-C@MoSe 2 /rGO, 55 ZnSe/ Co 0.85 Se@NC@rGO, 129 2D CoSe 2 /ZnSe@NC hybrid, 86 and 3D or hierarchical CoSe 2 /ZnSe@NC hybrids etc. 90 Furthermore, the optimization of electrolytes is also of importance for SIBs with ZnSe-based anode materials; e.g., Li et al demonstrate that the use of NaOTf/DIGLYME (NaOTf: sodium trifluoromethanesulfonate) as an electrolyte shows significantly enhanced Na + reaction kinetics, apparently reduced activation energy, and higher initial Coulomb efficiency (ICE) in comparison with traditional NaPF 6 or NaClO 4 in EC/DEC (ethylene carbonate/diethyl carbonate) electrolyte, accompanied by the formation of a more stable, uniform and thinner amorphous solid electrolyte interphase (SEI) with less decomposed Na 2 CO 3 /NaF (Fig.…”

“…Further construction of bimetallic selenides via cation-exchange for ZnSe/Sb 2 Se 3 @NC hollow microspheres, for example, could enhance the Na + ion storage capability and the cycling performance. 120 Some similar works have been published in recent years; these typical structures/composites include ZnSe/CeO 2 /RGO, 89 2D CuGaSe 2 @ZnSe-NC, 65 core–shell or yolk–shell ZnSe/CoSe/@NC or ZnSe/CoSe 2 @NC nanobox/polyhedra, 69,121–123 Fe 3 Se 4 /ZnSe@NC nanospheres and nanocubes, 105,124 CoSe 2 /ZnSe@C nanoparticles, 125 ZnSe/Sb 2 Se 3 @NC hollow microspheres, 120 heterojunction nanoparticles embedded in carbon nanofibers/nanorods (Cu 2 Se-ZnSe-CNFs, porous ZnSe/CoSe 2 /C, ZnSe/Co 0.85 Se@NC@C), 126–128 ZnSe⊂N-C@MoSe 2 /rGO, 55 ZnSe/Co 0.85 Se@NC@rGO, 129 2D CoSe 2 /ZnSe@NC hybrid, 86 and 3D or hierarchical CoSe 2 /ZnSe@NC hybrids etc . 90…”

Recent Advances of Pore Structure in Disordered Carbons for Sodium Storage: A Mini Review

“…In addition, the NMR also can be used as imaging analysis in the deposition of sodium to make an elaboration on the nucleation process of sodium metal. [73] In order to investigate the status of sodium in the disordered carbon matrix under different voltage region, the 23 Na NMR is seen as one of the most powerful tools to analyze the process of reversible sodiation/desodiation in the disordered graphene sheets or pores of disordered carbons. Extensive literatures reported that sodium maybe stored in the disordered carbon in a partial quasi-metallic sodium.…”

“…For anode materials, alloys, transition metal oxides, metal-organic frameworks and various carbonaceous materials have been widely reported in recent years. [21][22][23][24][25][26][27] Similarly, multiple strategies were adopted to enhance performance that involve morphology-design to promote ions diffusion [28][29] and defect-introduction to create active sites, [30] and so on.…”