Monodispersed hard carbon spherules with uniform nanopores

作者: Qing Wang , Hong Li , Liquan Chen , Xuejie Huang

DOI: 10.1016/S0008-6223(01)00040-9

关键词: CarbonNanoporeScanning electron microscopeNanotechnologyLithiumGrapheneChemical engineeringBET theoryTransmission electron microscopyParticle sizeChemistry

摘要: Hard carbon with perfect spherical morphology was prepared for the first time by a hydrothermal method. It has controllable monodispersed particle size and a smooth surface. Transmission electron microscopy shows that there are a large quantity of uniform nanopores of about 0.4 nm in diameter and only very few parallel graphene sheets exist within the spherules. This hard carbon material has a specific BET surface area of 400 m2/g for N2 as adsorbate, and can reversibly store lithium up to 430 mAh/g. This shows …

参考文章(22)
Guangli Che, Brinda B. Lakshmi, Ellen R. Fisher, Charles R. Martin, Carbon nanotubule membranes for electrochemical energy storage and production Nature. ,vol. 393, pp. 346- 349 ,(1998) , 10.1038/30694
P. Scharff, New carbon materials for research and technology Carbon. ,vol. 36, pp. 481- 486 ,(1998) , 10.1016/S0008-6223(98)00055-4
Hang Shi, Coke vs. graphite as anodes for lithium-ion batteries Journal of Power Sources. ,vol. 75, pp. 64- 72 ,(1998) , 10.1016/S0378-7753(98)00093-7
Takashi Kyotani, Control of pore structure in carbon Carbon. ,vol. 38, pp. 269- 286 ,(2000) , 10.1016/S0008-6223(99)00142-6
Sidney John Gregg, Adsorption, Surface Area and Porosity ,(1967)
Hiroyuki Fujimoto, Akihiro Mabuchi, Katsuhisa Tokumitsu, Takahiro Kasuh, Relationship between the charge capacity of a turbostratic carbon anode for a Li secondary battery and its structure Carbon. ,vol. 38, pp. 871- 875 ,(2000) , 10.1016/S0008-6223(99)00185-2
Sumio Iijima, Helical microtubules of graphitic carbon Nature. ,vol. 354, pp. 56- 58 ,(1991) , 10.1038/354056A0
Mark B Shiflett, Henry C Foley, Ultrasonic Deposition of High-Selectivity Nanoporous Carbon Membranes Science. ,vol. 285, pp. 1902- 1905 ,(1999) , 10.1126/SCIENCE.285.5435.1902