作者: Qing Wang , Hong Li , Liquan Chen , Xuejie Huang
DOI: 10.1016/S0008-6223(01)00040-9
关键词: Carbon 、 Nanopore 、 Scanning electron microscope 、 Nanotechnology 、 Lithium 、 Graphene 、 Chemical engineering 、 BET theory 、 Transmission electron microscopy 、 Particle size 、 Chemistry
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 …