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Jessica Campos-Delgado, Daniel L. Baptista, Miguel Fuentes-Cabrera, Bobby G. Sumpter, Vincent Meunier, Humberto Terrones, Yoong Ahm Kim, Hiroyuki Muramatsu, Takuya Hayashi, Morinobu Endo, Mauricio Terrones and Carlos A. Achete Iron Particle Nanodrilling of Few Layer Graphene at Low Electron Beam Accelerating Voltages Particle & Particle Systems Characterization 30

Version of Record online: 7 NOV 2012 | DOI: 10.1002/ppsc.201200041

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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.

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