N-doped carbon-coated Tin sulfide/graphene nanocomposite for enhanced lithium storage

Enhanced Electrochemical Performance by In Situ Phase Transition from SnS2 Nanoparticles to SnS Nanorods in N-Doped Hierarchical Porous Carbon as Anodes for Lithium-Ion Batteries

“…However, the continuous increase of capacity after ∼200 cycles can be explained as the electrolyte decomposition and the activation of active materials and defects. , N-HPC/SnS shows a specific capacity of 938.84 mAh/g for the first cycle at 0.5 A/g, and it is stable at 638.74 mAh/g over 800 cycles. Such cycling performance is comparable to the previous publications related to the tin-sulfide-based anode material in lithium-ion batteries, which further demonstrates the merits of N-HPC and 1D SnS nanorods. ,,,,, The internal resistance of N-HPC/SnS 2 and N-HPC/SnS before and after cycling was characterized by electrochemical impedance spectra (EIS) (Figure S11). The charge-transfer resistance ( R ct ) and the ion diffusion rate are compared by the semicircle in the high-frequency region and the slope line in the low-frequency region, respectively.…”

“…Such cycling performance is comparable to the previous publications related to the tin-sulfide-based anode material in lithium-ion batteries, which further demonstrates the merits of N-HPC and 1D SnS nanorods. 10,13,14,40,42,43 The internal resistance of N-HPC/SnS 2 and N-HPC/SnS before and after cycling was characterized by electrochemical impedance spectra (EIS) (Figure S11). The charge-transfer resistance (R ct ) and the ion diffusion rate are compared by the semicircle in the highfrequency region and the slope line in the low-frequency region, respectively.…”

Titania - Supported transition metals sulfides as photocatalysts for hydrogen production from propan-2-ol and methanol

“…Thioacetamide has been widely used as sulfur source for synthetic and analytic purposes. In various conditions, reaction of metals precursors with thioacetamide has been applied to prepare sulfides of Mo [30], Co and Ni [31], Cd [32], Sn [33] and other metals. Here we use uniform aqueous reflux synthesis conditions.…”

Ball-Milled Silicon with Amorphous Al2O3/C Hybrid Coating Embedded in Graphene/Graphite Nanosheets with a Boosted Lithium Storage Capability

“…In the last decades, a rapid growing demand for clean and renewable energy has stimulated the development of new energy storage systems and the relevant materials. − Among these systems, lithium-ion batteries (LiBs) have been widely applied in portable electronic devices, electric vehicles, and other large-scale applications because of their inherent advantages such as a long cycle life and a high energy density. It is known that commercial graphite has a low theoretical specific capacity of 372 mA h g –1 as anodes for LiBs, which does not satisfy the high energy demands. , Therefore, it is necessary to seek applications of other alternative anode materials with a high specific capacity, such as metal oxides, hard carbons, and metal alloys.…”