[PDF] Top 20 Carbon nanotubes grown in situ by a novel catalytic method
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Carbon nanotubes grown in situ by a novel catalytic method
... Carbon nanotubes, 1 which may possess outstanding properties, are currently prepared by arc- ...this method has a poor selectivity between the different forms of carbon obtained ... Voir le document complet
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Fe-substituted mullite powders for the in situ synthesis of carbon nanotubes by catalytic chemical vapor deposition
... prepared by combustion and further calcination in air at different ...temperatures. A detailed study involving notably Mo¨ssbauer spectroscopy showed that the Fe 3+ ions are distributed between the ... Voir le document complet
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Carbon nanotubes prepared in situ in a cellular ceramic by the gelcasting-foam method
... ions in the subsequent H 2 -CH 4 ...to a porosity of ...reveal a highly porous microstructure ( Fig. 4a ), with a commu- nicating ...observed in the pore walls ( ... Voir le document complet
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Carbon nanotubes prepared in situ in a cellular ceramic by the gelcasting-foam method
... ions in the subsequent H 2 -CH 4 ...to a porosity of ...reveal a highly porous microstructure ( Fig. 4a ), with a commu- nicating ...observed in the pore walls ( ... Voir le document complet
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High specific surface area carbon nanotubes from catalytic chemical vapor deposition process
... 2 A carbon nanotube specimen with a carbon content of 83 ...and a specific surface area equal to 790 m rg Ž corresponding to 948 m rg of carbon is prepared by a ... Voir le document complet
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Metal nanoparticles for the catalytic synthesis of carbon nanotubes
... atoms in the vapour produces dramatic changes. In the so-called “ scooter Ï mecha- nism, Guo et ...closes, a few metal atoms (perhaps only one) chemisorb on the carbon cluster and migrate to ... Voir le document complet
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High specific surface area carbon nanotubes from catalytic chemical vapor deposition process
... 2 A carbon nanotube specimen with a carbon content of 83 ...and a specific surface area equal to 790 m rg Ž corresponding to 948 m rg of carbon is prepared by a ... Voir le document complet
8
In situ CCVD synthesis of carbon nanotubes within a commercial ceramic foam
... containing a large quan- tity of CNTs within millimetre-sized pores, were prepared for the first ...of a commercial ceramic foam by a 60 g L 21 slurry of a ...powder in ethanol. ... Voir le document complet
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In situ CCVD synthesis of carbon nanotubes within a commercial ceramic foam
... created by human activity. Novel or improved materials for heterogeneous catalysis are of primary ...of a substrate on which a large quantity of nanometre-sized active particles are dispersed ... Voir le document complet
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Carbon Nanotubes by a CVD Method. Part II: Formation of Nanotubes from (Mg, Fe)O Catalysts
... of carbon nanotubes (CNTs) from different Fe/MgO oxide powders that were prepared by combustion synthesis and characterized in detail in a companion ...present in the ... Voir le document complet
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Metal nanoparticles for the catalytic synthesis of carbon nanotubes
... result in the gasiÐcation of the amorphous carbon, leading to the cleaning of the ...Moreover, a decrease in the contact time at constant tempera- ture leads to the predominance of ... Voir le document complet
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Electrical conductivity of carbon nanotubes grown inside a mesoporous anodic aluminium oxide membrane
... probe method (ASTM F390–398) to measure the sheet electrical resistance of the carbon layer deposited over the surface of alumina membranes at room ...composed by four collinear equally spaced ... Voir le document complet
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Synthesis of carbon nanotubes/hydroxyapatite composites using catalytic methane cracking
... it a promising candidate for enhancing the heat transfer performance of energy storage ...used in several applications, such as ...as a function of Ca/P molar ratio, it may be applied as catalyst ... Voir le document complet
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Mössbauer Spectroscopy Involved in the Study of the Catalytic Growth of Carbon Nanotubes
... multiwalled carbon nanotubes are prepared by a catalytic-chemical- vapor-deposition method involving the simultaneous formation of Fe or Co nanometric particles from oxide solid ... Voir le document complet
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Large scale production of multi-walled carbon nanotubes by fluidized bed catalytic chemical vapor deposition : a parametric study
... nm, in good agreement with the internal MWNT ...formed by the interaction of isolated ...adsorption in MWNT have confirmed that the adsorption between the tubes is a very important effect ... Voir le document complet
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Mössbauer Spectroscopy Involved in the Study of the Catalytic Growth of Carbon Nanotubes
... multiwalled carbon nanotubes are prepared by a catalytic-chemical- vapor-deposition method involving the simultaneous formation of Fe or Co nanometric particles from oxide solid ... Voir le document complet
9
A Study of the Formation of Single- and Double-Walled Carbon Nanotubes by a CVD Method
... with a small amount of DWNTs by disproportionation of CO at 1200 ° C on Al 2 O 3 -supported Mo ...nm in diameter, are found with a single catalytic particle of commensurate diameter ... Voir le document complet
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Carbon Nanotubes by a CVD Method. Part II: Formation of Nanotubes from (Mg, Fe)O Catalysts
... implying a narrow association between the large particles and the ...distributions in Fe10U4R and ...slightly in the majority (Figure ...only a statistical parameter since it is not an ... Voir le document complet
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Quantitative detection of carbon nanotubes in biological samples by an original method based on microwave permittivity measurements
... concentration in amphibian ...sample in the HF range in order to develop a quantification methodology suited to ecotoxicological studies made in labo- ratory ...consisted in ... Voir le document complet
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Electrical conductivity of carbon nanotubes grown inside a mesoporous anodic aluminium oxide membrane
... probe method (ASTM F390–398) to measure the sheet electrical resistance of the carbon layer deposited over the surface of alumina membranes at room ...composed by four collinear equally spaced ... Voir le document complet
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