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| Publications [#336310] of Jie Liu
search www.chem.duke.edu.Journal Articles
- Wu, ZG; Li, JT; Zhong, YJ; Liu, J; Guo, XD; Huang, L; Zhong, BH; Sun, SG, Synthesis of hierarchical worm-like SnO2@C aggregates and their enhanced lithium storage properties,
Journal of Alloys and Compounds, vol. 620
(September, 2014),
pp. 407-412, Elsevier BV [doi]
(last updated on 2026/01/16)
Abstract: The present paper reports a synthetic strategy of hierarchical worm-like SnO2@C aggregates with enhanced electrochemical performances. Specifically, a glucose-assisted hydrothermal treatment of the intermediate Co-Sn alloy nanoparticles, which were formed by carbothermal reduction of mixed commercial SnO2 and Co3O4 nanoparticles. The SnO2@C sample exhibits enhanced cycling performance in comparison with raw commercial SnO2 nanoparticles and intermediate Co-Sn alloy nanoparticles when used as anode of lithium ion battery. A stable capacity of 533.6 mA h g-1 at 100 mA g-1 and 477.0 mA h g-1 at 400 mA g-1 remains after 60 cycles. When the current density increases to 1600 mA g-1, the SnO2@C sample still deliver a high capacity of 384.2 mA h g-1. The superior electrochemical performances could be attributed to the synergistic effect of unique worm-like aggregates structure and carbon surface-layer, which facilitate the electron transportation and buffer the large volume change.
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