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Nitrogen-and oxygen-containing carbon micro/nanospheres (C-PAN and C-PNA) were prepared by direct pyrolysis of lignosulfonate/polyaniline and lignosulfonate/poly(N-ethylaniline) composite spheres at the temperature of 700 degrees C. The two type lignin-based composite spheres were prepared by an in situ polymerization of aniline and N-ethylaniline in the presence of lignosulfonate, respectively. The carbon spheres were investigated by thermal gravimetric analysis, scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, and X-ray photoelectron spectroscopy and were used as anodes for lithium ion batteries. The two carbon spheres showed different electrochemical performances due to their different surface functional groups and structures The C-PAN carbon nanospheres had better electrochemical performance as anodes for lithium ion batteries than that of C-PNA carbon microspheres. The first charge capacity and discharge capacity of the C-PAN nanospheres at a current density of 60, 100, and 200 mA g(-1) exhibited a discharge capacity of 1450, 1094, and 770 mAh g(-1), respectively, and a charge capacity of 707, 698, and 446 mAh g(-1) respectively. Furthermore, it still owned a high discharge capacity at a current density of 60, 100, and 200 mA g(-1) of 526, 431, and 338 mAh g(-1), respectively, after 20 cycles.
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ACS SUSTAINABLE CHEMISTRY & ENGINEERING
ISSN: 2168-0485
Year: 2013
Issue: 3
Volume: 1
Page: 334-340
7 . 1 0 0
JCR@2023
ESI Discipline: CHEMISTRY;
JCR Journal Grade:4
CAS Journal Grade:4
Cited Count:
WoS CC Cited Count: 45
SCOPUS Cited Count: 44
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 2
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