Electrochemistry of well-defined graphene samples: role of contaminants.
Electrochemistry of well-defined graphene samples: role of contaminants.
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DOI：
10.1039/c4fd00064a
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发表时间：
2014-11
影响因子：
3.4
通讯作者：
Hollie V. Patten;Matěj Velický;Nick Clark;C. Muryn;I. Kinloch;R. Dryfe
中科院分区：
文献类型：
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作者：
Hollie V. Patten;Matěj Velický;Nick Clark;C. Muryn;I. Kinloch;R. Dryfe
我们报告的电化学特性的定义明确的石墨烯样品，通过机械剥离制备。机械剥离是高纯度石墨烯样品的首选方法，尽管该方法固有的复杂性和所得薄片的小规模。然而，一个重要但目前尚不清楚的领域是吸附物如加工残留物对石墨烯层性质的作用。我们报告高分辨率的显微镜和电化学表征的各种聚（甲基丙烯酸甲酯）（PMMA）转移石墨烯样品，与明确的目的是调查电化学活性和样品纯度之间的关系。
We report the electrochemical characterisation of well-defined graphene samples, prepared by mechanical exfoliation. Mechanical exfoliation is the method of choice for high purity graphene samples, despite the inherent complexity of the approach and the small scale of the resultant flakes. However, one important, yet presently unclear area, is the role of adsorbates such as processing residue, on the properties of the graphene layer. We report high resolution microscopic and electrochemical characterisation of a variety of poly(methyl methacrylate) (PMMA) transferred graphene samples, with the explicit aim of investigating the relationship between electrochemical activity and sample purity.