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在子纳米通道中,受限水的结结构和低温过渡

Shuanglong Chen¹, Jianwen Wang¹, Xin Li¹

¹College of Physical Science and Technology, Bohai University, Jinzhou, Liaoning 121013, China.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy

|June 22, 2023

概括

在AlPO4-11通道中被封闭的水表现出独特的类似冰的和类似液体的结构,这是由于强烈的封闭. 这些结构在低温下发生变化,揭示了对水界面动态的新见解.

科学领域:

材料科学材料科学材料科学
物理化学物理化学
纳米技术纳米技术

背景情况:

界面和封闭式水在生物和地质过程中起着至关重要的作用.
了解水在狭窄空间中的行为对于各种科学领域至关重要.

研究的目的:

为了研究 AlPO4-11.11 的亚纳米通道中水的键结构和低温过渡.
阐明封闭水域独特的协调和结构组织.

主要方法:

红外光谱学被用来研究水结构.
用热重力测量分析来估计吸附的水分子的数量.

主要成果:

封闭的水分子表现出和 (类似冰) 和不和 (类似液体) 的协调,具有不同的键强度.
与框架Al站点的独特协调导致融化点以上的冰状结构.
强大的通道封闭促进了类似液体的结构,并抑制了广泛的四面体配置.
在较低的温度下,发生了结构转变,有利于小水寡合物,低密度无形冰状和液态结构.

结论:

在AlPO4-11中封闭的水表现出明显的结构组织和热动态行为.
强大的封闭和与框架的相互作用显著影响水结构和过渡.
这些发现为极端纳米通道中的水行为提供了关键的见解.

关键词:

封闭式水的限制水.主机与客人的互动.红外光谱中的红外光谱.接口互动互动的接口低温低温低温低温低温亚纳诺的频道是Subnano频道.

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