ADVANCED NANOMETROLOGY TECHNIQUES OF CARBON NANOTUBES CHARACTERIZATION
Journal Title: Metrology and Measurement Systems - Year 2008, Vol 15, Issue 4
Abstract
It has become evident that carbon nanotubes (CNTs) possess exceptionally high physical, mechanical, electrical, and structural properties that made them attractive for researchers to investigate. In this paper, CNTs synthesized by submerged DC arc in deionized water were subjected to six different characterization techniques in order to have an insight into their intrinsic properties. Stages of CNTs growth scenario during their synthesis were captured by Transmission Electron Microscopy (TEM). Images of Scanning Tunneling Microscopy (STM) depicted the spaghetti-like nature of nanotubes sized in the range from 6 to 8 nm diameters with bends and kinks observed. Transmission Electron Diffraction Microscopy (TEDM) images declared the purity of the synthesized CNTs. Also, Fourier Transformation Infra Red (FTIR) spectrum analysis depicted the transmittance and frequency band widths of peaks relevant to the functional groups. In addition, Raman spectrum analysis disclosed the G and D modes with no radial breathing mode (RBM) for a random sample of the synthesized CNTs indicating some defects, strain, oxidation stated of the SWCNTs with the possibility of multiwalled carbon nanotubes existence as well. Thermo Gravimetric Analysis (TGA) reflected the thermal stability of the synthesized CNTs as they sustained temperatures approaching almost 1000oC. Thus, it can be concluded that the used techniques proved to successfully characterize the synthesized CNTs, so that they can be reasonably nominated for suitable potential application.
Authors and Affiliations
SALAH ALI, M. ETMAN, B. AZZAM, R. RASHAD
Keywords
Related Articles
- EP ID EP113116
- DOI -
- Views 71
- Downloads 0
DATA FUSION APPLICATIONS IN THE TRAFFIC PARAMETERS MEASUREMENT
In the paper the problem of measuring road traffic parameters using systems with complex algorithms for measurement data processing is discussed. A characteristic feature of these systems is utilising there data fusion m...
QUANTUM HALL EFFECT: THE FUNDAMENTALS
The basic understanding of the physics behind and the reasons for very high precision of the resistivity ρxy quantisation in integer quantum Hall effect (IQHE) and the application of the effect in metrology to define a q...
HONORARY DOCTORATE FOR PROF. OSANNA
Prof. Dr. techn. Dr.h.c. Peter Herbert Osanna of the Vienna University of Technology, member of the International Programme Committee of Metrology and Measurement Systems, a journal of the Polish Academy of Sciences, rec...
ANALYSIS OF THE IRREGULARLY SAMPLED SIGNALS ABOVE THE NYQUIST LIMIT
A new method of spectrum analysis of the nonuniformly sampled data above the Nyquist limit is proposed, which is based on the digital spectral shift to the baseband, optional filtering and the subsequent spectrum analysi...
THE NEW MEASURE OF LOW-FREQUENCY DISTURBANCES IN POWER SYSTEM
The paper presents new approach to voltage disturbances measurement in electric power network. It is assumed that analyzed disturbances are caused by simultaneous amplitude and phase modulation. Analytic signal is used f...