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The suitability of the NiMgO catalyst as a catalyst in chiral-selective growth of single-walled carbon nanotubes (SWNTs) by chemical vapor deposition has been assessed. It reveals that catalyst calcination temperature plays an important role in affecting the catalyst performances. Using CO as the carbon precursor and a chemical vapor deposition reaction temperature of 600 °C, NiMgO pre-calcined at...
In situ boron or nitrogen doping in chemical vapor deposition growth of graphene on Cu (111) surface was extensively investigated by first-principles calculations. It was found that, during graphene growth, both boron and nitrogen atoms can be incorporated onto the graphene edge by overcoming the medium barriers of 1.50 and 1.95 eV, respectively. And, once a boron or nitrogen atom has been embedded...
Polyethylene was crystallized on carbon nanotubes (CNTs) resulting in the formation of nanosheets on the surface. The material was then carbonized in sulfuric acid at 20°C for 24h, resulting in a carbon shish-kebab (CSK) structure. Incorporating the CSKs in polyimide (PI) matrix produced a uniform dispersion in which interactions between the nodules producing an interlocking effect that significantly...
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