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Single-walled carbon nanotubes (SWNTs) have been synthesized by an arc discharge method using asphalt and petroleum coke as carbon source. The morphology and structure of SWNT products synthesized with Fe as catalyst were characterized by scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), Raman spectroscopy and energy dispersive X-ray spectroscopy (EDX)....
In this study, we investigated the impact of human settlement growth on vegetation carbon uptake in the eastern United States between 1992/1993 and 2001. Human settlement growth was measured by changes in the density of housing units. Vegetation carbon uptake was estimated with gross primary production (GPP) based on the light-use efficiency approach applied to satellite imagery. Annual GPP was found...
Platinum catalysts on activated carbon (AC) were developed and examined for the removal of organic pollutants from wastewater. The Pt/AC2 catalysts were more active than the Pt/ACl and Pt/AC3. With the analysis of BET, XPS and SEM, it was found that the quantities of oxygen containing groups on the AC surface increased after AC supports were pre-treated by oxidant, and farther the dispersion of Pt...
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