Site identification of carboxyl groups on graphene edges with Pt derivatives.
Site identification of carboxyl groups on graphene edges with Pt derivatives.
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DOI：
10.1021/nn800352y
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发表时间：
2008-09
期刊：
影响因子：
17.1
通讯作者：
R. Yuge;Minfang Zhang;M. Tomonari;T. Yoshitake;S. Iijima;M. Yudasaka
中科院分区：
文献类型：
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作者：
R. Yuge;Minfang Zhang;M. Tomonari;T. Yoshitake;S. Iijima;M. Yudasaka
尽管人们对纳米碳的羧基化学官能化进行了大量的研究，并对羧基的性质和数量进行了很好的研究，但羧基的位置还没有得到明确的解释。在这里，我们表明，通过使用铂胺络合物作为着色剂，可以识别羧基的位置。在乙醇中将铂胺络合物与石墨烯混合后，发现在石墨烯的边缘有许多平均尺寸约为0.6 nm的铂胺络合物簇合物，这表明羧基主要存在于石墨烯的边缘。这些结果将使通过化学修饰为纳米管和其他纳米碳的各种应用添加功能变得更容易。
Although chemical functionalization at carboxyl groups of nanocarbons has been vigorously investigated and the identities and quantities of the carboxyl groups have been well studied, the location of carboxyl groups had not previously been clarified. Here, we show that site identification of carboxyl groups is possible by using Pt-ammine complex as a stain. After Pt-ammine complexes were mixed with graphenes in ethanol, many Pt-ammine complex clusters with an average size of about 0.6 nm were found to exist at edges of graphene sheets, indicating that the carboxyl groups mainly existed at the graphene edges. These results will make it easier to add functionalities by chemical modifications for various applications of nanotubes and other nanocarbons.