A simple mechanical technique to obtain carbon nanoscrolls from graphite nanoplatelets

被引：39
作者：
Carotenuto, Gianfranco [1 ]
Longo, Angela [1 ]
De Nicola, Sergio [2 ,3 ]
Camerlingo, Carlo [4 ]
Nicolais, Luigi [5 ]
机构：
[1] CNR, Inst Composite & Biomed Mat, I-80125 Naples, Italy
[2] Complesso Univ MS Angelo, Natl Res Council, SPIN Inst, I-80126 Naples, Italy
[3] Complesso Univ MS Angelo, INFN Sez Napoli, I-80126 Naples, Italy
[4] CNR, Inst Cybernet E Caianiello, I-80078 Pozzuoli, Italy
[5] Univ Naples Federico II, Dept Mat Engn & Prod, I-80125 Naples, Italy
来源：
NANOSCALE RESEARCH LETTERS | 2013年 / 8卷
关键词：
Carbon nanoscrolls; Shear stress; Bi-axially oriented polypropylene; Graphite nanoplatelets; BIAXIALLY ORIENTED POLYPROPYLENE; FABRICATION;
D O I：
10.1186/1556-276X-8-403
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A simple approach for the bulk production of carbon nanoscrolls (CNSs) is described. This method is based on the application of shear-friction forces to convert graphite nanoplatelets into carbon nanoscrolls using a bi-axially oriented polypropylene (BOPP) surface. The combined action of shear and friction forces causes the exfoliation of graphite nanoplatelets and the simultaneous roll-up of graphite layers. Evidence of the CNS formation is given by optical microscopy, scanning electron microscopy, and transmission electron microscopy. These investigations reveal that the CNSs have a long tube-like and fusiform structure with a hollow core surrounded by few layers of graphene. Micro-Raman spectroscopy shows that the produced structures are not defect free, and optical spectroscopy reveals distinctive features due to the presence of two weak absorption bands at 224 and 324 nm.
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页码：1 / 6
页数：6
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