Triple-walled SnO2@N-doped carbon@SnO2 nanotubes as an advanced anode material for lithium and sodium storage
作者： Jie Yue , Wenpeng Wang , Nana Wang , Xianfeng Yang , Jinkui Feng
DOI: 10.1039/C5TA06080J
关键词:
摘要: Triple-walled SnO2@N-doped carbon@SnO2 nanotubes are synthesized by a facile process with high-quality PPy as the template. This structure has SnO2 nanoparticles closely attached to both external and internal surfaces of N-doped carbon nanotubes, thus assuring good charge-transfer kinetics all nanoparticles. Meanwhile, it doubles loading density in nanocomposite, offers adequate room accommodate volume deformation on/in nanotubes. All these features make nanocomposite well fitted for lithium or sodium storage. It is found that this an anode material ion batteries can deliver reversible capacity 935 mA h g−1 after 100 cycles at 200 g−1, 658 300 2000 g−1. In case batteries, its could be still preserved 492 50 current 25
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