Separation and Characterization of Single-Walled and Multiwalled Carbon Nanotubes by Using Flow Field-Flow Fractionation

详细信息    查看全文

• 作者：Bailin Chen and John P. Selegue
• 刊名：Analytical Chemistry
• 出版年：2002
• 出版时间：September 15, 2002
• 年：2002
• 卷：74
• 期：18
• 页码：4774 - 4780
• 全文大小：456K
• 年卷期：v.74,no.18(September 15, 2002)
• ISSN：1520-6882

文摘

Oxidatively shortened single-walled and multiwalled carbon nanotubes were characterized by using flow field-flowfractionation (FlFFF) under normal and steric modes,respectively. Narrow size fractions were collected fromFlFFF separations. The carbon nanotubes in each fractionwere further characterized by using scanning and transmission electron microscopy. FlFFF separates carbonnanotubes principally on the basis of length, leading tofractions with relatively uniform lengths. The relationshipbetween nanotube length and FlFFF elution volume isdiscussed.