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- W2080246551 abstract "Abstract Many outstanding properties of graphene are blocked by the existence of structural defects. Herein, we propose an important healing mechanism for the growth of graphene, which is produced via plasma‐enhanced chemical vapor decomposition (PECVD), that is, the healing of graphene with single vacancies by decomposed CH 4 (hydrocarbon radical CH x , x =1, 2, 3). The healing processes undergo three evolutionary steps: 1) the chemisorption of the hydrocarbon radicals, 2) the incorporation of the C atom of the hydrocarbon radicals into the defective graphene, accompanied by the adsorption of the leaving H atom on the graphene surface, 3) the removal of the adsorbed H atom and H 2 molecule to generate the perfect graphene. The overall healing processes are barrierless, with a huge released heat of 530.79, 290.67, and 159.04 kcal mol −1 , respectively, indicative of the easy healing of graphene with single vacancies by hydrocarbon radicals. Therefore, the good performance of the PECVD method for the generation of graphene might be ascribed to the dual role of the CH x ( x =1, 2, 3) species, acting both as carbon source and as defect healer." @default.
- W2080246551 created "2016-06-24" @default.
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- W2080246551 date "2012-01-31" @default.
- W2080246551 modified "2023-10-16" @default.
- W2080246551 title "Role of Hydrocarbon Radicals CHx (x=1, 2, 3) in Graphene Growth: A Theoretical Perspective" @default.
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- W2080246551 doi "https://doi.org/10.1002/cphc.201100864" @default.
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