scholarly journals Imaging and Characterization of Molecules and One-Dimensional Crystals Formed within Carbon Nanotubes

MRS Bulletin ◽  
2004 ◽  
Vol 29 (4) ◽  
pp. 265-271 ◽  
Author(s):  
J. Sloan ◽  
D.E. Luzzi ◽  
A.I. Kirkland ◽  
J.L. Hutchison ◽  
M.L.H. Green
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotubes ◽  
Transmission Electron Microscopy ◽  
Single Walled Carbon Nanotubes ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
One Dimensional ◽  
Transmission Electron ◽  
Walled Carbon Nanotubes

AbstractThe imaging and characterization of individual molecules and atomically thin, effectively one-dimensional crystals of rock salt and other halides encapsulated within single-walled carbon nanotubes are reviewed in this article. These species were imaged by conventional and super-resolved high-resolution transmission electron microscopy and by scanning tunneling microscopy, revealing the detailed atomic structure of these nanoscopic species.

scholarly journals Encapsulated Molecules in Carbon Nanotubes: Structure and Properties

2001 ◽  
Vol 675 ◽  
Author(s):  
Richard Russo ◽  
Brian W. Smith ◽  
B.C. Satishkumar ◽  
David E. Luzzi ◽  
Harry C. Dorn
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotubes ◽  
Thermal Stability ◽  
Transmission Electron Microscopy ◽  
Single Walled Carbon Nanotubes ◽  
Structure And Properties ◽  
One Dimensional ◽  
Transmission Electron ◽  
Walled Carbon Nanotubes ◽  
Thermal Stability Of

ABSTRACTWe encapsulate a number of fullerenes inside single-walled carbon nanotubes (SWNTs) including La2@C80 and ErxSc3–xN@C80(x=0–3). The structural properties of these nanoscopic hybrid materials are described using high resolution transmission electron microscopy and electron diffraction. It is found that the encapsulated fullerenes self-assemble into long, one-dimensional chains. The thermal stability of these supramolecular assemblies are studied and large variations are found. The behavior is nominally consistent with the mass of the encapsulated metallofullerenes.

Image Restoration of One-Dimensional HgTe Crystals Formed within Single Walled Carbon Nanotubes

2006 ◽  
Vol 514-516 ◽  
pp. 1131-1134
Author(s):  
Jeremy Sloan ◽  
Robin Carter ◽  
Angus I. Kirkland ◽  
Rüdiger R. Meyer ◽  
Alexis Vlandas ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotubes ◽  
Three Dimensional ◽  
Single Walled Carbon Nanotubes ◽  
One Dimensional ◽  
Single Walled Carbon ◽  
Semiconductor Crystals ◽  
Transmission Electron ◽  
Walled Carbon Nanotubes ◽  
Separate Crystal

Restored high resolution transmission electron microscopy (HRTEM) images have been recorded from 1D semiconductor crystals formed within narrow diameter (ca. 1.4 nm) single walled carbon nanotubes (SWNTs). Two unique projections were obtained from separate crystal fragments encapsulated within separate nanotubes that has facilitated the reconstruction of the three dimensional arrangement of atoms within the two encapsulated fragments.

Structural and morphological variations of encapsulated metal oxides in single walled carbon nanotubes

2005 ◽  
Vol 901 ◽  
Author(s):  
Pedro MFJ Costa ◽  
Narun Thamavaranukup ◽  
Thomas Rutherford ◽  
Steffi Friedrichs ◽  
Jeremy Sloan ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotubes ◽  
Transmission Electron Microscopy ◽  
Metal Oxides ◽  
Morphological Characteristics ◽  
Single Walled Carbon Nanotubes ◽  
Morphological Variations ◽  
Single Walled Carbon ◽  
Transmission Electron ◽  
Walled Carbon Nanotubes

AbstractSingle walled carbon nanotubes have been filled with a variety of metal oxides and the structural and morphological characteristics of the metal_oxide@SWNT composites studied. Advanced techniques of software aberrations correction for transmission electron microscopy were used for characterisation. This research shows that, despite their higher reactivity compared to salts such as halides, oxides can be encapsulated within SWNTs with some compounds attaining remarkable filling yields.

Large Scale Combustion Synthesis of Single-Walled Carbon Nanotubes and Their Characterization

2008 ◽  
Vol 8 (11) ◽  
pp. 6065-6074 ◽  
Author(s):  
Henning Richter ◽  
Meri Treska ◽  
Jack B. Howard ◽  
John Z. Wen ◽  
Sebastien B. Thomasson ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotubes ◽  
Transmission Electron Microscopy ◽  
Combustion Synthesis ◽  
Large Scale ◽  
Single Walled Carbon Nanotubes ◽  
Process Conditions ◽  
Single Walled Carbon ◽  
Transmission Electron ◽  
Walled Carbon Nanotubes

Since its invention in 1991, premixed combustion synthesis of fullerenic materials has been established as the major industrial process for manufacturing of these materials. Large-scale production of fullerenes such as C60, C70 and C84 has been implemented. More recently, combustion technology has been extended to the targeted synthesis of single-walled carbon nanotubes (SWCNT). Addition of catalyst precursor and operation at well-controlled fuel-rich but non-sooting conditions are required. Extensive parametric studies have allowed for the optimization of the formation of high-quality SWCNT. Purification techniques previously reported in the literature have been adjusted and used successfully for the nearly complete removal of metal and metal oxide. Material has been characterized using Raman spectroscopy, scanning (SEM) and transmission electron microscopy (TEM), scanning transmission electron microscopy (STEM), atomic force microscopy (AFM), X-ray diffraction (XRD), and thermogravimetric analysis (TGA). Correlations between process conditions and nanotube properties such as length have been established. Product reproducibility and process scalability of the combustion process have been demonstrated. Sample preparation was found to affect significantly the apparent characteristics of nanotubes as seen in electron microscopy images.

Purification and Characterization of Single-Walled Carbon Nanotubes

1999 ◽  
Vol 593 ◽  
Author(s):  
H.Y. Kim ◽  
W.B. Choi ◽  
N.S. Lee ◽  
D.S. Chung ◽  
J.H. Kang ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotubes ◽  
Sulfuric Acid ◽  
Volume Ratio ◽  
Single Walled Carbon Nanotubes ◽  
Tem Analysis ◽  
Single Walled Carbon ◽  
Transmission Electron ◽  
Walled Carbon Nanotubes

ABSTRACTSingle-walled carbon nanotubes (SWNTs) were purified and cut into short length by the liquid phase oxidation using the typical oxidants such as HNO3, H2SO4 and their mixture. The SWNTacid solutions were refluxed at high temperature, filtered on poly tetra-fluoro ethylene (PTFE) filter paper. rinsed with distilled water, and then dried at room temperature. In order to find optimum purifying condition, acid solutions were made by mixing nitric / sulfuric acid by the different volume ratio. The reaction time was also varied from 1h to 6h. Through this method, purified SWNTs with the length of less than 2μm were successfully obtained, which was confirmed by scanning electron microscopy (SEM). From transmission electron microscopy (TEM) analysis, it was verified that SWNTs were purified with little damage on surface and metal catalysts were efficiently removed when sulfuric acid was mixed, which was also confirmed by energy disperse spectrum analysis (EDS). Moreover, size distribution of the purified SWNTs was characterized with Field Flow-Fractionation (FFF) method.

scholarly journals Transmission Electron Microscopy and Three-Dimensional Tomography of Peptide-Coated Single-Walled Carbon Nanotubes

2011 ◽  
Vol 17 (S2) ◽  
pp. 1008-1009
Author(s):  
P Bajaj ◽  
J Nguyen ◽  
C Gilpin ◽  
G Dieckmann ◽  
C Chiu ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotubes ◽  
Transmission Electron Microscopy ◽  
Three Dimensional ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Transmission Electron ◽  
Walled Carbon Nanotubes

Extended abstract of a paper presented at Microscopy and Microanalysis 2011 in Nashville, Tennessee, USA, August 7–August 11, 2011.

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