Mechanical Properties of Low-Dimensional Carbon Structures

Author(s):  
C. E. Bottani
2007 ◽  
Vol 33 (2) ◽  
pp. 268-271 ◽  
Author(s):  
T. I. Buryakov ◽  
A. I. Romanenko ◽  
O. B. Anikeeva ◽  
A. V. Okotrub ◽  
N. F. Yudanov ◽  
...  

2019 ◽  
Vol 9 (8) ◽  
pp. 1673 ◽  
Author(s):  
Li-Ying Liu ◽  
Yang Ding ◽  
Bo Zhou ◽  
Ning-Ning Jia ◽  
Kuan Wang ◽  
...  

Na2Ti7O15 (NTO) can be selected as candidate anode for high-performance sodium-ion batteries (SIBs). However, there are few reports of research on the mechanical properties of low-dimensional NTO, which is important for the stability of SIBs. In this work, by using the one-step hydrothermal method, NTO nanowires (NWs) with good orientation were prepared successfully. The transmission electron microscopy (TEM) and selected area electron diffraction (SAED)showed that the NTO NWs had a good aspect ratio and dispersion, with lengths over 20 μm. Further microstructure analysis showed that the nanowires grew along the (020) direction, and there were some "stripe" structures along the growing direction, which provides a good tunnel structure for Na ion channels. Further, the in situ mechanical analysis showed that the NTO NWs had excellent elastic deformation characteristics and mechanical structural stability. In addition, the NTO NWs also showed a good gas sensitivity to NO and NH3. Our results showed that the prepared NTO nanowires with a stripe tunnel oriented-structure and excellent mechanical properties may have a potential application in SIBs or other wearable sensor devices.


2001 ◽  
Vol 705 ◽  
Author(s):  
V. Ksenevich ◽  
J. Galibert ◽  
V. Samuilov ◽  
Y.-S. Seo ◽  
J. Sokolov ◽  
...  

AbstractThe charge transport and quantum interference effects in low-dimensional mesoscopic carbon networks prepared using self-assembling were investigated. The mechanism of conduction in low-dimensional carbon networks was found to depend on the annealing temperature of the nitrocellulose precursor. The charge transport mechanism for carbon networks obtained at Tann=750 0C was found to be the hopping conductivity in the entire investigated temperature range. The Coulomb gap near the Fermi level in the density of states was observed in the investigated carbon networks. The width of the Coulomb gap was found to be decreased with the annealing temperature of the carbon structures. The crossover from the strong localization to the weak localization regime of the charge transport in the carbon structures, obtained at Tann=950 0C and Tann=1150 0C, was observed in the temperature range T>100 K and T>20 K, respectively.


1992 ◽  
Vol 06 (23n24) ◽  
pp. 3603-3612 ◽  
Author(s):  
Klaus Sattler

Understanding carbon in its various forms became recently the focus of many research activities due to the production of C 60 and other fullerenes. Besides the fullerenes, other novel forms of carbon might be realized in the laboratory. In this respect, the physics of low-dimensional carbon configurations is of special interest. We will discuss the effect of defects on a graphitic sheet, ‘rotated’ stacking of graphitic sheets, and the adsorption characteristics of submonolayer carbon on graphite. Using a scanning tunneling microscope, we find that the local density of states can strongly vary due to defects, or layer misorientations, leading to periodic modulations of the graphitic electron state density. A variety of observed anomalous structures are explained by lateral electron state density variations rather than by atomic reconstructions.


2017 ◽  
Vol 7 (1) ◽  
Author(s):  
C. H. Wong ◽  
R. Lortz ◽  
E. A. Buntov ◽  
R. E. Kasimova ◽  
A. F. Zatsepin

2019 ◽  
Vol 125 (15) ◽  
pp. 154301 ◽  
Author(s):  
V. Celebonovic ◽  
J. Pesic ◽  
R. Gajic ◽  
B. Vasic ◽  
A. Matkovic

2008 ◽  
Vol 33-37 ◽  
pp. 681-686
Author(s):  
Tao Hua ◽  
Hui Min Xie ◽  
Peng Zhang ◽  
Fei Yi Du ◽  
Bing Pan ◽  
...  

The spider silk is considered as a new type of biomaterials with its excellent mechanical properties. The mechanical properties of the spider silk are crucial to their applications. In this study the mechanical properties of spider silk were studied with a micro-tensile system driven by magnet-coil force actuator, which is very effective to measure the properties of low dimensional materials. The Young’s modulus of the spider silk is obtained, the relationship between the mechanical properties of spider silk and time is also acquired.


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