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ZnS/C nanoparticles with core/shell structure are prepared by a simple solvothermal process followed by an annealing process. The core consists of a quite amount of ultrasmall ZnS nanocrystals (∼10nm) dispersing in in situ formed carbon matrix, which is covered by an outer carbon shell with ∼4nm thickness. The nano-sized ZnS crystals effectively shorten the lithium ion diffusion paths, while the uniform...
CoSn 2 -C nanocomposites with Sn 30 Co 15 C 55 average formula, consisting of CoSn 2 nanocrystals dispersed in a disordered carbon matrix were obtained by a mechanochemical method from CoSn 3 , Co and graphite, and for comparison, by a typical mechanical milling. Crystal structure and microstructure of the materials were characterized by XRD, SEM and...
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