Graphene from amorphous titanium carbide by chlorination under 200 °C and atmospheric pressures.
Graphene from amorphous titanium carbide by chlorination under 200 °C and atmospheric pressures.
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无定形碳化钛在 200 摄氏度和大气压下氯化得到石墨烯
DOI:
10.1038/srep05494
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发表时间:
2014-06-30
影响因子:
4.6
通讯作者:
Mu S
中科院分区:
文献类型:
--
作者:
Peng T;Kou Z;Wu H;Mu S
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 (>1200°C) 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 (200°C) 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.
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