Journal
BIORESOURCE TECHNOLOGY
Volume 127, Issue -, Pages 66-71Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2012.09.132
Keywords
Lignosulfonate; Poly(2-ethylaniline); Pyrolysis; Lithium-ion batteries anode
Funding
- National Natural Science Foundation of China [51272045]
- Natural Science Foundation of Fujian Province, China [2012J01201]
- Science-Technology Foundation of Education Bureau of Fujian Province, China [JA12031]
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Lignosulfonate/poly(2-ethylaniline) (LS-PEA) composite nanospheres were prepared via in situ polymerization of 2-ethylaniline (EA) with lignosulfonate (LS) as a dispersant. LS-PEA nanospheres with an average diameter of 155 nm were obtained at an optimal LS concentration of 20 wt.%. Subsequently, nitrogen-containing carbon nanospheres were fabricated via direct pyrolysis of the LS-PEA composite nanospheres at 600-800 degrees C. The carbon nanospheres prepared by pyrolysis were used as anodes of lithium-ion batteries. The first charge and discharge capacity of carbon nanospheres prepared at 700 degrees C at current densities of 60 and 100 mA g(-1) were 980 and 432 mAh g(-1), and 764 and 342 mAh g(-1), respectively. The batteries still owned a high capacity of 353 and 296 mAh g(-1) after 20 cycles. The results indicated that these nitrogen-containing carbon nanospheres could be used as a promising candidate for electrode materials of lithium-ion batteries. (C) 2012 Elsevier Ltd. All rights reserved.
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