Experimental three-dimensional description of the liquid hexadecane/graphite interface.
Experimental three-dimensional description of the liquid hexadecane/graphite interface.
复制标题
液体十六烷/石墨界面的实验三维描述。
DOI：
10.1021/la803665k
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
J. Cousty
中科院分区：
文献类型：
--
作者：
L. P. Van;V. Kyrylyuk;Jérôme Polesel;F. Thoyer;C. Lubin;J. Cousty
利用基于石英音叉传感器的原子力显微镜，在室温下对液态十六烷与高取向热解石墨表面之间的界面进行了三维描述。与衬底表面接触的C16 H34单层表现出层状结构，而没有观察到在液体/石墨界面的扫描隧道显微镜报道了这种烷烃。第二层显示出非常弱的波纹对应于薄片边界。力/距离曲线示出了至少四个间隔0.4nm的振荡，除了具有0.38nm距离的第一周期，其对应于更靠近衬底的层。这样的描述同意以及烷烃/固体界面上获得的分子动力学结果。
By using an atomic force microscope based on a quartz tuning fork sensor, a 3-dimensional description of the interface between liquid hexadecane and a highly oriented pyrolytic graphite surface can be achieved at room temperature. The C16H34 monolayer in contact with the substrate surface exhibits a lamellar structure whereas no observation at the liquid/graphite interface by scanning tunnelling microscopy was reported for this alkane. The second layer shows very weak corrugations corresponding to lamella boundaries. Force/distance curves show at least four oscillations separated by 0.4 nm except for the first period with a 0.38 nm distance that corresponds to the layer closer the substrate. Such a description agrees well with molecular dynamics results obtained on alkane/solid interfaces.