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Graphene from Amorphous Titanium Carbide by Chlorination under 200 oC and Atmospheric Pressures
Tao Peng, Zongkui Kou, Hui Wu & Shichun Mu*
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The synthesis of graphene via decomposition of SiC has opened a promising route for large-scale production of graphene. However, extremely high requirements for almost perfectly ordered crystal SiC and harsh process conditions such as high temperatures (.12006C) and ultra-high vacuum are two significant challenges hindering its wide use to synthesize graphene by decomposition of SiC. Here, we show that the readily available precursor of carbides, amorphous TiC (a-Ti1-xCx), can be transformed into graphene nanosheets (GNS) with tunable layers by chlorination method at very low temperatures (2006C) and ambient pressures. Moreover, freestanding GNS can be achieved by stripping off GNS from the surface of resulting particles. Therefore, our strategy, the direct transformation of a-Ti1-xCx into graphene, is simple and expected to be easily scaled up.SCI REP-UK:Ò»ÖÖͨ¹ýÂÈ»¯·¨½«ÎÞ¶¨ÐÎ̼»¯îÑת»¯ÎªÊ¯Ä«Ï©µÄ·½·¨
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