Journal
APPLIED SURFACE SCIENCE
Volume 437, Issue -, Pages 136-143Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2017.12.144
Keywords
Biomass; Nitrogen-doped; Lithium-ion batteries; Carbon nanosheets
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Funding
- National Natural Science Foundation of China [51272016, 51272019, 51672021]
- Foundation of Excellent Doctoral Dissertation of Beijing City [YB20121001001]
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In this paper, a low-cost and environmental friendly synthesis strategy is proposed to fabricate nitrogendoped biomass-based ultra-thin carbon nanosheets (N-CNS) with interconnected framework by using soybean milk as the carbon precursor and sodium chloride as the template. The interconnected porous nanosheet structure is beneficial for lithium ion transportation, and the defects introduced by pyridine nitrogen doping are favorable for lithium storage. When used as the anodes for lithium-ion batteries, the N-CNS electrode shows a high initial reversible specific capacity of 1334 mAh g(-1) at 50 mA g(-1), excellent rate performance (1212, 555 and 336 mAh g(-1) at 0.05, 0.5 and 2 A g(-1), respectively) and good cycling stability (355 mAh g(-1) at 1 A g(-1) after 1000 cycles). Furthermore, this study demonstrates the prospects of biomass and soybean milk, as the potential anode for the application of electrochemical energy storage devices. (C) 2017 Elsevier B.V. All rights reserved.
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