K-H2O 和 K-H2O-EDTA界面的双电层结构示意图 (IMAGE)

Science China Press

K-H2O 和 K-H2O-EDTA界面的双电层结构示意图

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（a）K-H2O界面的示意图；（b）引入EDTA后的界面示意图。EDTA在EDL处通过Lewis acid-base作用参与钾阳离子溶剂化壳层，EDTA聚集层形成H-bond gap层，破坏初始的界面水氢键网络，减缓通过氢键网络的质子传递。

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©《中国科学》杂志社

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