title: Fabrication, characterization and application of nitrogen-containing carbon nanospheres obtained by pyrolysis of lignosulfonate/poly(2-ethylaniline).
abstract: 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 °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 °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.
authors.affiliation: College of Materials Science and Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, People's Republic of China.
authors.forename: Zhi-Wei
authors.initials: ZW
authors.lastname: He
authors.forename: Qiu-Feng
authors.initials: QF
authors.lastname: Lü
authors.forename: Qilang
authors.initials: Q
authors.lastname: Lin
mesh_terms: D000814:Aniline Compounds / Q000737:chemistry*; D002244:Carbon / Q000032:analysis* / Q000737:chemistry; D011211:Electric Power Supplies; D004563:Electrochemistry; D004566:Electrodes; D006358:Hot Temperature; D008031:Lignin / Q000031:analogs & derivatives* / Q000737:chemistry; D049329:Nanostructures / Q000032:analysis* / Q000737:chemistry; D009584:Nitrogen / Q000032:analysis*
chemical_list: D000814:Aniline Compounds; D002244:Carbon; C001545:lignosulfuric acid; D008031:Lignin; D009584:Nitrogen