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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Gas-phase Preparation of SO3-Graphite: Host-Exchange and Exfoliation
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Gas-phase Preparation of SO3-Graphite: Host-Exchange and Exfoliation

机译：SO3-石墨的气相制备：主体交换和剥离

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摘要

The reaction of sulfur trioxide with graphite via gas phase led to an intercalation of a double layer of sulfur trioxide with a basal spacing of 11.1 angstrom. The SO3-graphite was obtained atom-efficient as a single phase product without the need of purification. The increased basal space should facilitate an exfoliation by rendering the tactoids more shear labile. A further weakening of the attractive forces within a stack was done by the replacement of sulfur trioxide with the surfactant perfluorobutanesulfonic acid leading to a basal spacing of 16.8 angstrom. The large basal spacings were also preserved in suspension and no defects were created. The mechanical exfoliation with ultrasound predominantly broke the platelets. A rotor-stator device offering high shear forces was found to exfoliate the platelets more gently but there was still a good number of very small particles.
机译：三氧化硫与石墨的气相反应导致插层的基础间距为11.1埃的三氧化硫双层。无需纯化即可获得单原子形式的SO3-石墨高效原子产品。增加的基础空间应通过使触针具有更大的剪切不稳定力来促进剥离。通过用表面活性剂全氟丁烷磺酸代替三氧化硫，导致基层间距为16.8埃，从而使烟囱中的吸引力进一步减弱。大的基部间距也保留在悬浮液中，没有产生缺陷。超声机械剥脱主要破坏血小板。发现提供高剪切力的转子-定子装置可以使血小板更平滑地剥落，但是仍然有很多非常小的颗粒。

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