使用离子液体直接将天然石墨剥离成微米级的少层石墨烯片。
Direct exfoliation of natural graphite into micrometre size few layers graphene sheets using ionic liquids.
机构信息
Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
出版信息
Chem Commun (Camb). 2010 Jul 7;46(25):4487-9. doi: 10.1039/c0cc00799d. Epub 2010 May 19.
PMID:20485780
Abstract
Stable high-concentration suspensions (up to 0.95 mg mL(-1)) of non-oxidized few layer graphene (FLG), five or less sheets, with micrometre-long edges were obtained via direct exfoliation of natural graphite flakes in ionic liquids, such as 1-butyl-3-methyl-imidazolium bis(trifluoro-methane-sulfonyl)imide ([Bmim]-[Tf(2)N]), by tip ultrasonication.
摘要
通过在离子液体（如 1-丁基-3-甲基-咪唑双（三氟甲烷磺酰）亚胺([Bmim]-[Tf(2)N])）中，通过尖端超声处理，直接剥离天然石墨片，得到了稳定的高浓度悬浮液（高达 0.95mg mL(-1)）的未氧化的少层石墨烯（FLG），其边缘长达数微米，有五张或更少的薄片。
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