Showing papers by "Gilles Flamant published in 2000"
TL;DR: In this article, a thermodynamic analysis has determined in detail the speciation of Hg, Se, and As, which are the most volatile trace elements in the flue gas from burning bituminous coal, depending on the temperature (400-1800 K), the atmosphere (reducing or oxidizing conditions), and the chlorine content.
52 citations
TL;DR: In this paper, the growth mechanisms of single-wall carbon nanotubes (SWNTs) produced by the solar method as a function of the experimental conditions and the nature of catalysts were investigated.
Abstract: We report here some studies of the growth mechanisms of single-wall carbon nanotubes (SWNTs) produced by the solar method as a function of the experimental conditions and the nature of catalysts. A large set of transmission electron microscopy (TEM) pictures seems to confirm the existence of one dominant growth mechanism, close to the model proposed by Saito et al., whatever the used catalyst might be. Nevertheless, the Raman spectra clearly show that the change of catalyst induces differences in diameter, structure, and electronic properties of SWNTs.
35 citations
TL;DR: In this article, a set of pyrometers were developed and applied for surface temperature monitoring in thermal plasma processing: a 1-spot monochromatic, a 1 -spot multiwavelength and a bi-dimensional system.
25 citations
TL;DR: In this article, a 2D-hydrodynamic model is developed for a simulation of nanoscale particles formation in a laser-produced erosive flow propagating from the irradiated surface into the ambient gas.
16 citations
TL;DR: In this article, the influence of this heating on the efficiency of cadmium removal from aqueous solutions by immersing these two feldspars into these solutions is presented.
15 citations
TL;DR: In this paper, a spouted bed reactor non-isothermal modelling is developed, in which the sport, the fountain, and the annulus region are taken into account, and flow pattern is based on the streamtube formulation with a special approach for flat-bottomed reactors.
15 citations
TL;DR: In this paper, the authors reported the production of carbon nanotubes by direct vapourization of graphite targets containing different couples of catalysts using a 2 kW solar furnace.
Abstract: In this work we report the production of carbon nanotubes by direct vapourization of graphite targets containing different couples of catalysts using a 2 kW solar furnace. With this small-scale experimental set-up we observed the evolution of the structure of the produced nanotubes with experimental conditions, pressure and flow rate of the inert gas (argon) and target composition. High pressure favours the production of bundles of single-wall nanotubes (SWNTs) and the purity of the produced material depends on the target temperature and the cooling rate of the vapour. We also discuss the influence of the target composition.
12 citations
29 May 2000
2 citations