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Reactions of CO_2 on solid and liquid Al_(100)~+

机译:CO_2在固液Al_(100)〜+上的反应

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摘要

The reactions of CO_2 on the Al_(100)~+ cluster have been investigated as a function of cluster temperature (300-1100 K) and relative kinetic energy (0.2-10 eV). Two main products are observed at low cluster temperature: Al_(100)O~+ (which is believed to result from a stripping reaction) and Al_(100)CO_2 ~+ from complex formation. As the cluster temperature is raised, both products dissociate by loss of Al_2O. Al_(100)O~+ forms Al_(98) ~+, while Al_(100)CO_2 ~+ forms Al_(98)CO~+ and Al_(96)C~+. In both cases, loss of Al_2O turns-on above the melting temperature of Al_(100)~+. This presumably occurs because the overall reaction leading to the loss of Al_2O is significantly less endothermic for the liquid cluster than for the solid.
机译:研究了CO_2在Al_(100)〜+团簇上的反应与团簇温度(300-1100 K)和相对动能(0.2-10 eV)的关系。在较低的团簇温度下观察到两个主要产物:Al_(100)O〜+(据认为是由汽提反应产生的)和Al_(100)CO_2〜+。随着团簇温度的升高,两种产物都因Al_2O的损失而解离。 Al_(100)O〜+形成Al_(98)〜+,而Al_(100)CO_2〜+形成Al_(98)CO〜+和Al_(96)C〜+。在这两种情况下,Al_2O的损失都在Al_(100)〜+的熔化温度以上开启。据推测,这是因为,导致团簇Al_2O损失的整体反应对液体团簇的吸热明显低于对固体团的吸热。

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