NDLI: Bottom-up synthesis of nitrogen-doped porous carbon scaffolds for lithium and sodium storage

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Bottom-up synthesis of nitrogen-doped porous carbon scaffolds for lithium and sodium storage

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Bottom-up synthesis of nitrogen-doped porous carbon scaffolds for lithium and sodium storage

Content Provider	Royal Society of Chemistry (RSC)
Author	Wang, Yanrong Liu, Jie Hu, Yi Zhu, Guoyin Chen, Renpeng Wang, Xiaoqi Lu, Hongling Jin, Zhong Chen, Tao Ma, Lianbo Tie, Zuoxiu
Copyright Year	2017
Abstract	Here we report an effective bottom-up solution-phase process for the preparation of nitrogen-doped porous carbon scaffolds (NPCSs), which can be employed as high-performance anode materials for both lithium-ion batteries (LIBs) and sodium-ion batteries (SIBs). The as-obtained NPCSs show favorable features for electrochemical energy storage such as high specific surface area, appropriate pore size distribution (3.9 nm in average), large pore volume (1.36 cm3 g−1), nanosheet-like morphology, a certain degree of graphitization, enlarged interlayer distance (0.38 nm), high content of nitrogen (∼5.6 at%) and abundant electrochemically-active sites. Such a unique architecture provides efficient Li+/Na+ reservoirs, and also possesses smooth electron transport pathways and electrolyte access. For LIBs, the anodes based on NPCSs deliver a high reversible capacity of 1275 mA h g−1 after 250 cycles at 0.5 C (1 C = 372 mA g−1), and outstanding cycling stabilities with a capacity of 518 mA h g−1 after 500 cycles at 5 C and 310 mA h g−1 after 1500 cycles even at 10 C. For SIBs, the anodes based on NPCSs display a reversible capacity of 257 mA h g−1 at 50 mA g−1, and superior long-term cycling performance with a capacity of 191 mA h g−1 after 1000 cycles at 200 mA g−1.
Starting Page	1972
Ending Page	1977
Page Count	6
File Format	HTM / HTML PDF
ISSN	20403364
Volume Number	9
Issue Number	5
Journal	Nanoscale
DOI	10.1039/c6nr08296c
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology

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