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利用鳞片石墨热还原法制备石墨烯

DOI: 10.14062/j.issn.0454-5648.2015.12.19

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Abstract:

以天然鳞片石墨为原料,采用改进的Hummers法制备氧化石墨,再经热处理还原获得石墨烯。研究了热处理温度和碳酸氢铵的加入对氧化石墨还原的影响。结果表明随着热处理温度从400℃升高到800℃,石墨烯的层间距由0.369nm降低到0.335nm,D峰与G峰强度比(ID/IG)值降低至0.89。在400℃添加碳酸氢铵后,石墨烯的层间距由0.369nm降低为0.353nm,ID/IG值由0.96增大到1.06。

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