Synthesis of hierarchical worm-like SnO2@C aggregates and their enhanced lithium storage properties
Synthesis of hierarchical worm-like SnO2@C aggregates and their enhanced lithium storage properties
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多级蠕虫状SnO2@C聚集体的合成及其增强的锂存储性能
DOI:
10.1016/j.jallcom.2014.08.176
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发表时间:
2015-01
影响因子:
6.2
通讯作者:
Sun Shi-Gang
中科院分区:
文献类型:
--
作者:
Wu Zhen-Guo;Li Jun-Tao;Zhong Yan-Jun;Liu Jie;Guo Xiao-Dong;Huang Ling;Zhong Ben-He;Sun Shi-Gang
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 SnO2and Co3O4nanoparticles. The SnO2@C sample exhibits enhanced cycling performance in comparison with raw commercial SnO2nanoparticles and intermediate Co–Sn alloy nanoparticles when used as anode of lithium ion battery. A stable capacity of 533.6 mA h g−1at 100 mA g−1and 477.0 mA h g−1at 400 mA g−1remains 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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DOI:
10.1039/ad9791600143
发表时间:
1979
期刊:
--
影响因子:
--
作者:
M. R. Palacín
通讯作者:
M. R. Palacín
影响因子:
3.9
作者:
Linghui Yu;D. Cai;Haihui Wang;M. Titirici
通讯作者:
Linghui Yu;D. Cai;Haihui Wang;M. Titirici
影响因子:
6.2
作者:
Wang, Fei;Yao, Gang;Xu, Minwei;Zhao, Mingshu;Sun, Zhanbo;Song, Xiaoping
通讯作者:
Song, Xiaoping
影响因子:
6.2
作者:
Shejun Hu;Dawei Sun;Xiong Song;Juan Li
通讯作者:
Juan Li
影响因子:
9.2
作者:
Guo, Jinxue;Jiang, Bin;Liu, Hongtian
通讯作者:
Liu, Hongtian