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Network Covalent Solids

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Updated: Dec 24, 2025

Preparation and Characterization of C60/Graphene Hybrid Nanostructures

Preparation and Characterization of C60/Graphene Hybrid Nanostructures

Published on: May 15, 2018

Local Carbon Concentration Determines the Graphene Edge Structure.

Da Li^1,2, Yanchao Wang¹, Tian Cui^1,3

¹State Key Lab of Superhard Materials, College of Physics, Jilin University, Changchun 130012, P.R. China.

The Journal of Physical Chemistry Letters

|April 17, 2020

Summary

Researchers explored graphene edge structures using particle swarm optimization, discovering new stable configurations and self-passivated edges with unique geometric features. This work advances understanding of graphene

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Simultaneous Synthesis of Single-walled Carbon Nanotubes and Graphene in a Magnetically-enhanced Arc Plasma

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Area of Science:

Materials Science
Computational Chemistry
Nanotechnology

Background:

Graphene edge structures and properties are crucial for its applications.
The mechanism determining diverse graphene edge formations remains unclear.

Purpose of the Study:

To perform a global search for graphene edge structures.
To build databases of stable armchair and zigzag graphene edge configurations.
To elucidate the mechanisms behind graphene edge formation.

Main Methods:

Utilized the particle swarm optimization algorithm for a comprehensive search.
Systematically analyzed and categorized graphene edge structures.
Investigated the role of local carbon concentration in edge formation.

Main Results:

Identified the most stable graphene edge structures.
Created databases for armchair and zigzag graphene edges.
Discovered novel self-passivated edge structures containing octagons and triangles.
Observed "apical dominance" in armchair edges.
Explained experimentally observed edges (ac(56), ac(677), Klein) via local carbon concentration.

Conclusions:

Graphene edge self-passivation is key to edge stability.
The developed databases are valuable for studying nanotubes and fullerenes.
Local carbon concentration influences the formation of specific experimentally observed graphene edges.