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Synergistic Effect of SnO 2 /ZnWO 4 Core–Shell Nanorods with High Reversible Lithium Storage Capacity
Author(s) -
Xing LiLi,
Yuan Shuang,
He Bin,
Zhao YaYu,
Wu XiaoLing,
Xue XinYu
Publication year - 2013
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201300337
Subject(s) - nanorod , lithium (medication) , materials science , nanocomposite , chemical engineering , nanoparticle , capacity loss , electrochemistry , nanotechnology , core (optical fiber) , shell (structure) , chemistry , electrode , composite material , medicine , endocrinology , engineering
High reversible lithium storage capacity is obtained from novel SnO 2 /ZnWO 4 core–shell nanorods. At C/20 (20 h per half cycle) rate, the reversible capacity of SnO 2 /ZnWO 4 core–shell nanorods is as high as 1000 mAh g −1 , much higher than that of pure ZnWO 4 , SnO 2 , or the traditional theoretical result of the simple mixture. Such performance can be attributed to the synergistic effect between the nanostructured SnO 2 and ZnWO 4 . The distinct electrochemical activity of ZnWO 4 nanorods probably activates the irreversible capacity of the SnO 2 nanoparticles. These results indicate that high‐performance lithium ion batteries can be realized by introducing the synergistic effect of one‐dimensional core–shell nanocomposites.