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Iron Particle Nanodrilling of Few Layer Graphene at Low Electron Beam Accelerating Voltages
Author(s) -
CamposDelgado Jessica,
Baptista Daniel L.,
FuentesCabrera Miguel,
Sumpter Bobby G.,
Meunier Vincent,
Terrones Humberto,
Kim Yoong Ahm,
Muramatsu Hiroyuki,
Hayashi Takuya,
Endo Morinobu,
Terrones Mauricio,
Achete Carlos A.
Publication year - 2013
Publication title -
particle and particle systems characterization
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.877
H-Index - 56
eISSN - 1521-4117
pISSN - 0934-0866
DOI - 10.1002/ppsc.201200041
Subject(s) - graphene , economies of agglomeration , nanoparticle , materials science , nanotechnology , layer (electronics) , electron , particle (ecology) , chemical engineering , physics , nuclear physics , geology , oceanography , engineering
Atomic vacancies in graphene are created under relatively low energy electron bombardment, but the formation of vacancies is significanlty enhanced by iron nanocatalysis. The evolution of the overall process involves nanoparticle agglomeration, interlayer migration, and confinement to nearby defects. The catalytic activation of metal nanoparticles via elecron irradiation on graphene‐like surfaces appears to be a novel process that can be used to obtain porous graphene sheets with high surface areas.