Graphene has been intensively studied in recent years in order to take advantage of its unique properties. Its synthesis on SiC substrates by solid-state graphitization appears a suitable option for graphene-based electronics. However, before developing devices based on epitaxial graphene, it is desirable to understand and finely control the synthesis of material with the most promising propert...

Single suspended carbon nanofibers on carbon micro-structures were fabricated by directed electrospinning and subsequent pyrolysis at 900 C of carbon nanotube/polyacrylonitrile (CNT/PAN) composite material. The electrical conductivity of the nanofibers was measured at different weight fractions of CNTs. It was found that the conductivity increased almost two orders of magnitude upon adding 0.5 ...

Despite the recent interest in catalytic graphitization to obtain graphite-like materials from hard-carbon sources, many aspects of its mechanism are still poorly unknown. We performed a series situ experiments study phase transformations during precursor using an iron catalyst at temperatures up 1100 °C and ex total scattering 2000 structural evolution resulting graphitized carbon. Our results...

Carbon nanotubes were produced from post-consumer mixed waste plastics using a pyrolysis-catalysis process. The catalysts used Ni-Fe bimetals supported over four different porous materials. Ni-Fe/MCM41 catalyst displayed the highest catalytic activity for of in terms carbon material yield at 55.60 wt.%. order was Ni-Fe/MCM41> Ni-Fe/ZSM5> Ni-Fe/Beta > Ni-Fe/NKF5, which closely related to their d...

Electrospun fibrous membranes find place in diverse applications like sensors, filters, fuel cell membranes, scaffolds for tissue engineering, organic electronics etc. The objectives of present work are to electrospun polyacrylonitrile (PAN) nanofibers and PAN-CNT nanocomposite nanofibers and convert into carbon nanofiber and carbon-CNT composite nanofiber. The work was divided into two parts, ...

An improved SOFC anode with excellent stability against carbon deposition syngas as fuel is reported. The material Ni–La0.8Sr0.2FeO3 (LSF) composite synthesized by anhydrous impregnation. After reduction in wet H2 (3% H2O), the partially decomposes to SrLaFeO4 and exsolved Fe. Fe forms Ni–Fe alloy impregnated Ni. particle size of about 20–50 nm. nanoparticles disperse on surface La0.8Sr0.2FeO3 ...