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In this paper, a simple and inexpensive method of preparing carbon-based nanomaterials via Co-based catalyst has been demonstrated. It was shown by various optical and structural characterization that well-graphitized carbon nano-sphere can be prepared using the proposed process. Through the data extracted from Raman spectra, it was found that the as-deposited samples showed much lower Id/Ig than...
Electrospray technique is one of improved technique that is more advantageous than the other techniques. This technique does not require a complex reactor and is considered as cost effective method. The deposition quality can be controlled by adjusting the voltage, flow rate and concentration of TiO2 suspension. At various suspension concentrations like 0.40%, 0.20%, 0.10% and 0.04%, TiO2 nanoparticles...
By the use of a coaxial pulsed vacuum arc discharge deposition method (APD), we have developed a catalyst deposition system for support powders or sheet materials under vacuum. In this poster, we introduce Pt catalysis processing for fuel cells and evaluation of the resulting electrical properties.
Hyaluronic acid (HA) is a high molecular weight glycosaminoglycan found in the extracellular matrix and joints in the body. Elevated levels in the serum are associated with liver disease so detection at concentrations in the microgram per liter range is useful for monitoring cirrhosis progression. Conventional methods can measure HA in this range but they take several days and require multiple preparation...
The particles grown in gas phase of carbon sputtering plasmas were observed, and analyzed in chemical composition and atomic arrangement. The atomic arrangement obviously changed from amorphous to crystalline with addition of fluorine-contained gas (CF4). The fluorine atom enhanced the formation of nano-sized particles with graphite structure. The fluorine content was not be found in the crystalline...
Carbon nanotubes (CNTs) offer unique properties such as the highest current density, ballistic transport, ultrahigh thermal conductivity, and extremely high mechanical strength. Because of these remarkable properties, they have been expected for use as wiring materials and as alternate channel materials for extending complementary metal-oxide-semiconductor (CMOS) performance in future very large scale...
Carbon nanotubes (CNTs) films were synthesized at low pressure using nickel as catalyst by thermal chemical vapor deposition with hydrogen-acetylene mixture. The Raman characteristics and morphological features of CNTs at different substrate temperatures were investigated. The variation of CNTs morphological feature mainly depends on the substrate temperatures. In the low temperature range (450-550degC),...
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