Anomalous restoration of graphitic layers from graphene oxide in ethanol environment at ultrahigh temperature using solar furnace
Anomalous restoration of graphitic layers from graphene oxide in ethanol environment at ultrahigh temperature using solar furnace
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DOI：
10.7567/apex.9.025103
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发表时间：
2016-01
影响因子：
2.3
通讯作者：
T. Ishida;Y. Miyata;Y. Shinoda;Yoshihiro Kobayashi
中科院分区：
文献类型：
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作者：
T. Ishida;Y. Miyata;Y. Shinoda;Yoshihiro Kobayashi
从有缺陷的氧化石墨烯的石墨结构的恢复进行了检查，在反应性乙醇环境中，在100 ℃。通过拉曼光谱进行的结构分析表明，多层石墨烯中的乱层结构以及高结晶度是通过乙醇环境中的超高温过程实现的。这种现象是非常反常的，因为它与在惰性环境中观察到的结果形成鲜明对比，在惰性环境中石墨化显著进行以形成Bernal堆叠多层石墨烯。在乙醇环境中的石墨化的抑制可能是由于在恢复过程中的碳和蚀刻物种的同时供应。
The restoration of graphitic structures from defective graphene oxide was examined in a reactive ethanol environment at ultrahigh temperatures. Structural analysis by Raman spectroscopy indicates that turbostratic structures as well as high crystallinity in multilayer graphene were accomplished by an ultrahigh-temperature process in an ethanol environment. This phenomenon is quite anomalous since it is in striking contrast to the results observed in inert environments, where graphitization proceeds significantly to form a Bernal stacking multilayer graphene. The suppression of graphitization in ethanol environments is probably caused by the simultaneous supply of carbon and etching species during the restoration process.