Time-dependent study of the exfoliation process of carbon nanotubes in aqueous dispersions by using UV-visible spectroscopy

被引：210

作者：

Grossiord, N

Regev, O

Loos, J

Meuldijk, J

Koning, CE

机构：

[1] Eindhoven Univ Technol, Polymer Chem Lab, Labs Polymer Technol & Mat & Interface Chem, Proc Dev Grp, NL-5600 MB Eindhoven, Netherlands

[2] Dutch Polymer Inst, NL-5600 AX Eindhoven, Netherlands

[3] Ben Gurion Univ Negev, Chem Engn Lab, IL-84105 Beer Sheva, Israel

来源：

ANALYTICAL CHEMISTRY | 2005年 / 77卷 / 16期

关键词：

D O I：

10.1021/ac050358j

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this paper we demonstrate that the sonication-driven exfoliation of aggregates and bundles of single-wall carbon nanotubes (SWNTs) in an aqueous surfactant solution can be easily monitored by UV-vis spectroscopy. The different stages of the exfoliation process were directly visualized by cryogenic temperature transmission electron microscopy, showing an excellent correspondence with the spectroscopic data: the maximum achievable exfoliation (which does not mean that 100% of the NTs are effectively exfoliated) corresponds to the maximum UV-vis absorbance of the NT solution. Moreover, it has been observed that NTs produced by the arc-discharge technology (Carbolex NTs) require less energy to achieve maximum exfoliation than NTs produced by chemical vapor deposition (HiPCO NTs). Ibis difference is attributed to weaker van der Waals attraction between Carbolex NTs in the bundles and aggregates.

引用

页码：5135 / 5139

页数：5

共 17 条

[1]

Dresselhaus M. S., 1996, SCI FULLERENES CARBO

[2] PHYSICS OF CARBON NANOTUBES [J].

DRESSELHAUS, MS ;

DRESSELHAUS, G ;

SAITO, R .

CARBON, 1995, 33 (07) :883-891

[3] High weight fraction surfactant solubilization of single-wall carbon nanotubes in water [J].

Islam, MF ;

Rojas, E ;

Bergey, DM ;

Johnson, AT ;

Yodh, AG .

NANO LETTERS, 2003, 3 (02) :269-273

[4] Production of aqueous colloidal dispersions of carbon nanotubes [J].

Jiang, LQ ;

Gao, L ;

Sun, J .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2003, 260 (01) :89-94

[5] Grafting of alkoxyamine end-capped (co)polymers onto multi-walled carbon nanotubes [J].

Lou, XD ;

Detrembleur, C ;

Sciannamea, V ;

Pagnoulle, C ;

Jérôme, R .

POLYMER, 2004, 45 (18) :6097-6102

[6] Mechanical damage of carbon nanotubes by ultrasound [J].

Lu, KL ;

Lago, RM ;

Chen, YK ;

Green, MLH ;

Harris, PJF ;

Tsang, SC .

CARBON, 1996, 34 (06) :814-816

[7] Dispersion of single-walled carbon nanotubes in aqueous solutions of the anionic surfactant NaDDBS [J].

Matarredona, O ;

Rhoads, H ;

Li, ZR ;

Harwell, JH ;

Balzano, L ;

Resasco, DE .

JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (48) :13357-13367

[8] A microscopic and spectroscopic study of interactions between carbon nanotubes and a conjugated polymer [J].

McCarthy, B ;

Coleman, JN ;

Czerw, R ;

Dalton, AB ;

Panhuis, MIH ;

Maiti, A ;

Drury, A ;

Bernier, P ;

Nagy, JB ;

Lahr, B ;

Byrne, HJ ;

Carroll, DL ;

Blau, WJ .

JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (09) :2210-2216

[9] Preparation of conductive nanotube-polymer composites using latex technology [J].

Regev, O ;

ElKati, PNB ;

Loos, J ;

Koning, CE .

ADVANCED MATERIALS, 2004, 16 (03) :248-+

[10] Supramolecular self-assembly of lipid derivatives on carbon nanotubes [J].

Richard, C ;

Balavoine, F ;

Schultz, P ;

Ebbesen, TW ;

Mioskowski, C .

SCIENCE, 2003, 300 (5620) :775-778

← 1 2 →