Multifunctional ionic liquid-assisted interfacial engineering towards ZnS nanodots with ultrastable high-rate lithium storage performance

Abstract

In this article, a new zinc-containing ionic liquid (IL) [HMMIm]2[ZnCl4] (HMMIm = 1-hexyl-2,3-dimethyl-imidazolium) is designed, which acts as a multifunctional source for the interfacial engineering of ZnS nanodots (NDs). Given...

A facile precursor route towards the synthesis of Fe1−xS@NC-rGO composite anode materials for high-performance lithium-ion batteries

“…The capacity loss occurring initially results from the formation of SEI film, while the capacity loss at the second and third cycles may be derived from the formation and dissolution of intermediate metal sulfides in the electrolyte. 14,25 Similar phenomena can also be observed among Fe 1− x S@NC (Fig. 4b), Fe 1− x S@NC-rGO-1 (Fig.…”

“…The increased graphitization degree significantly improves the conductivity of composites, which accelerates the transfer of Li + ions and electrons. 25 Table S1† summarizes the elemental analysis (EA) results of the as-obtained composites. It shows that, for Fe 1− x S@NC, Fe 1− x S@NC-rGO-1, Fe 1− x S@NC-rGO-2 and Fe 1− x S@NC-rGO-3 composites, the C content is 17.92 wt%, 21.63 wt%, 25.44 wt%, and 31.33 wt%, respectively, while the N content is 4.43 wt%, 3.72 wt%, 3.65 wt%, and 0.67 wt%, respectively; these are consistent with the weight loss trends observed in the thermogravimetric analysis (TGA) results (Fig.…”

Ni-Directed biphase N-doped Mo2C as an efficient hydrogen evolution catalyst in both acidic and alkaline conditions

“…The five samples all presented the characteristics of a type IV isotherm, and the pores can be attributed to the inter-linking of nanocrystals. 44 The specific surface areas of Ni x -Mo 2 C/N were calculated to be 60.02, 59.55, 66.99, 66.19, and 46.23 m 2 g −1 for x = 0, 5, 10, 15, and 20, respectively. The BET results showed a similar tendency in surface area to that from ECSA.…”

Green synthesis of carbon-supported ultrafine ZnS nanoparticles for superior lithium-ion batteries

“…10 As a typical carbon nanomaterial, reduced graphene oxide has been widely applied as a framework to load monodisperse ZnS NPs. 11,12 Hou et al 13 anchored ZnS NPs of ∼10 nm to a carbon nanotube (CNT) bundle via the additional usage of thiourea as the linking agent for covalent coupling. Another successful approach involves simultaneous carbonization and sulfidation of Zn-based zeolitic imidazolate frameworks, leading to tightly-rooted ZnS nanorods within hollow carbon polyhedra.…”