Carbon materials with high pentagon density

@article{Diana2020CarbonMW,
  title={Carbon materials with high pentagon density},
  author={Nooramalina Diana and Yasuhiro Yamada and Syun Gohda and Hironobu Ono and Shingo Kubo and Satoshi Sato},
  journal={Journal of Materials Science},
  year={2020},
  volume={56},
  pages={2912 - 2943}
}
Pentagons in carbon materials have attracted attentions because of the potential high chemical reactivity, band gap control, and electrochemical activity. However, it is challenging to prepare a carbon film with high pentagon density because of the curvature and the high reactivity caused by the presence of pentagons, and it is also challenging to estimate the percentage of pentagons in carbon materials because of the limitation of current analytical techniques. In this work, the percentage of… 
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References

SHOWING 1-10 OF 91 REFERENCES
Effects of Intrinsic Pentagon Defects on Electrochemical Reactivity of Carbon Nanomaterials.
TLDR
Theoretical calculations reveal that intrinsic pentagons in the basal plane can contribute to the local electronic redistribution and the contraction of band gap, making the carbon matrix possess superior binding affinity and electrochemical reactivity, showing the influence of intrinsic pentagon defects for developing carbon-based nanomaterials toward energy conversion and storage devices.
Carbon materials with controlled edge structures
Quantitative Analysis of Zigzag and Armchair Edges on Carbon Materials with and without Pentagons Using Infrared Spectroscopy.
TLDR
A novel two-dimensional method to quantify edge structures of carbon materials with and without pentagons was developed by analyzing both out-of-planes sp2C-H bending and in-plane sp2 C-H stretching vibration.
Analyses of oxidation process for isotropic pitch-based carbon fibers using model compounds
Knoevenagel condensation using nitrogen-doped carbon catalysts
Selective doping of nitrogen into carbon materials without catalysts
Selective doping of nitrogen into carbon materials in the absence of catalysts is a key for various applications of carbon materials. It is well known that most nitrogen-containing raw materials
Helical microtubules of graphitic carbon
THE synthesis of molecular carbon structures in the form of C60 and other fullerenes1 has stimulated intense interest in the structures accessible to graphitic carbon sheets. Here I report the
The nature of strength enhancement and weakening by pentagon-heptagon defects in graphene.
TLDR
It is shown here that GB strength can either increase or decrease with the tilt, and the behaviour can be explained well by continuum mechanics.
ReaxFF Molecular Dynamics Simulation for the Graphitization of Amorphous Carbon: A Parametric Study.
TLDR
This study indicates that both Chenoweth 2008 and Srinivasan 2015 potential sets are appropriate for molecular dynamics simulations in which the growth of graphitic structures is investigated.
...
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