Zhao, YanLiu, ZhengjunZhang, YongguangMentbayeva, AlmagulWang, XinMaximov, M. Yu.Liu, BaoxiBakenov, ZhumabayYin, Fuxing2017-11-132017-11-132017Zhao et al.(>8), 2017, Facile Synthesis of SiO2@C Nanoparticles Anchored on MWNT as High-Performance Anode Materials for Li-ion Batteries, Nanoscale Research LettersDOI 10.1186/s11671-017-2226-2http://nur.nu.edu.kz/handle/123456789/2782Carbon-coated silica nanoparticles anchored on multi-walled carbon nanotubes (SiO2@C/MWNT composite) were synthesized via a simple and facile sol-gel method followed by heat treatment. Scanning and transmission electron microscopy (SEM and TEM) studies confirmed densely anchoring the carbon-coated SiO2 nanoparticles onto a flexible MWNT conductive network, which facilitated fast electron and lithium-ion transport and improved structural stability of the composite. As prepared, ternary composite anode showed superior cyclability and rate capability compared to a carbon-coated silica counterpart without MWNT (SiO2@C). The SiO2@C/MWNT composite exhibited a high reversible discharge capacity of 744 mAh g−1 at the second discharge cycle conducted at a current density of 100 mA g−1 as well as an excellent rate capability, delivering a capacity of 475 mAh g−1 even at 1000 mA g−1. This enhanced electrochemical performance of SiO2@C/MWNT ternary composite anode was associated with its unique core-shell and networking structure and a strong mutual synergistic effect among the individual components.enOpen Access - the content is available to the general publicAttribution-NonCommercial-ShareAlike 3.0 United StatesLithium-ion batteryanodeSiO2@C/MWNT compositesol-gel synthesisArticle