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同位素 (¹H/²H/³H) 在溶液中的分离使用在PTFE增强的纳上转移的石墨烯

Hyojoo Kim¹, Hongdoo Kim², Bhupendra Kumar Singh^1,3

¹Division of Advanced Nuclear Engineering (DANE), Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea.

ACS applied materials & interfaces

|July 3, 2025

概括

研究人员开发了一种新的基于石墨烯的膜,用于从液态水中分离包括三在内的同位素. 这项创新通过提高膜稳定性和选择性来解决核废水处理和核聚变能源方面的挑战.

科学领域:

材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.
核工程核工程是指核工程.

背景情况:

从放射性废水中分离对于核电和核聚变工业至关重要.
现有的纳菲欧基基烯膜因纳菲欧胀和石墨烯缺陷而与液态水作斗争.
和主要以水分子的形式存在,因此需要液相分离方法.

研究的目的:

开发一种经过修改的纳菲欧基基烯复合膜,用于在液态水中有效分离同位素.
通过修改膜研究同位素 (1H,2H,3H) 的运输机制和选择性.
评估石墨烯基膜在水电解系统中的度和去除的潜力.

主要方法:

通过将石墨烯转移到聚四乙烯增强的石墨烯上,制造出一种经过修改的纳菲奥基烯复合膜.
用电驱动和扩散驱动的运输实验来测量同位素导电性和选择性.
分析石墨烯在扩散能障碍和同位素分离机制中的作用.

主要成果:

经过修改的膜证明了在液态水中有效的同位素分离.
在电动驾驶下,单层石墨烯显示出明显高于D+的H+导电性.
与相比,石墨烯对施加了更高的扩散能量屏障,表明分离受零点能量差异的控制.

结论:

经过修改的纳菲奥基基烯膜结构克服了以前用于液态水应用的设计的局限性.
传输机制和石墨烯完整性是实现高同位素选择性的关键因素.
基于石墨烯的膜为核水电解中的管理提供了一个有前途的解决方案.

关键词:

这是一种PTFE-Nafion.石墨烯的转移转移同位素分离的方法孔隙填充方法孔隙填充方法放射性废水是放射性的废水.三是三中的一种.零点能量是指零点的能量.

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