Graphene is one of most exceptional type of nanocarbon. It is a two-dimensional, one atom thick, nanosheet of sp 2 hybridized carbon atoms. Graphene has been employed as nanofiller for shape memory polymeric nanocomposites due to outstanding electrical c
(i.e., linking groups) between phenyl ring carbon atoms in the lignin structure. By being “melt-processible” is meant that the crosslinked lignin can be melted or converted to a molten, highly viscous, or rubbery state starting at a particular glass transition temperature. The melted or ...
theoretical shapes of the photoluminescence band is associated with the broadening of carbon-induced acceptor levels (i.e., with the formation of the acceptor impurity band), resulting from the effect of electric fields of randomly distributed ionized acceptors and donors on "isolated" carbon atoms....
The absorption band at 350 nm (0 day) was also shifted to 320 nm (14 days) over time; however, no obvious shift was seen in maximum emission at 450 nm indicating that the size of the cluster (number of atoms for one molecule) was almost retained25 (Fig. 1d). Besides, ...
(b) After the cutting process (along the armchair orientation of a graphene sheet), the simulation shows that the edge is straight and along the direction of cutting. (c) The zoomed-in images of the carbon-atoms at the edge (for cutting along armchair, zigzag and chiral or mixing ...
parallel equidistant sheets or layers of carbon atoms, usually referred to as graphene layers or basal planes, are linked or bonded together and groups thereof are arranged in crystallites. Highly ordered graphites consist of crystallites of considerable size: the crystallites being highly aligned or...
The molar ratio of the three components, macrodiol:LDI:PD, was 1:5.05:4, resulting in a LDI-PD content of 29 wt%. Taking into account the bio-based carbon content and weight percentage of the components it was determined that the bio-based carbon content of the matrix was 75%. ...
In other words, composite PCM materials should not only play a role in thermal energy storage, but also serve as photon capture and heater under the solar radiation [28]. Between the various carbon materials, expanded graphite [29], [30], graphene [31], graphene oxide [32], [33], [34...
For example, FET devices with 100 GHz switching frequencies have been fabricated using graphene nanoribbons13. The nanoribbon edges can be terminated using a variety of different atoms, which opens up application opportunities, in particular for nanoribbons in polymer hosts for fab- rication of ...
Representative 13C NMR spectra of CSEs with different DSs are shown in Fig. 2b. The signals around ~173 ppm are attributed to the carbon of C = O groups. The signals between 60 and 10 ppm are ascribed to the carbons of aliphatic chains, while the carbons of AGUs of cellulose...