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CO_2和CH_4在离子液体体系中的平均力位能的分子动力学模拟(英文)
Authors
崔哲
谢小东
郭艳东
霍锋
Publication date
1 January 2018
Publisher
Abstract
通过研究分子动力学模拟的径向分布函数,获得了气体分子CO_2/CH_4周围[Emim][Tf_2N],[Emim][BF_4],[Bmim][Tf_2N]和[Bmim][BF_4]等体系的微观结构,通过加权柱状图和伞形采样分别计算了4种体系中CO_2和CH_4分子对的平均力势能.结果表明,[Bmim][Tf_2N]中CO_2的势阱在4类离子液体中最深,在分子水平下获得的平均力势能与实际溶解度一致,平均力势能在选择合适的阴阳离子用于设计开发气体分离的离子液体时起到了重要作用
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Last time updated on 08/07/2019