数据驱动的发现具有高吸水能力的耐水性金属有机框架
Akash K Ball1, Gianmarco G Terrones1, Shuwen Yue1
1Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States.
ACS applied materials & interfaces
|June 5, 2025
概括
研究人员使用机器学习和模拟确定了具有高水吸收的稳定金属有机框架 (MOF). 这为诸如海水淡化等水应用所需的材料带来了进步.
科学领域:
- 材料科学 材料科学 材料科学
- 计算化学的计算化学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 金属有机框架 (MOFs) 对与水有关的应用,如海水淡化,显示出希望.
- 许多MOF在水中缺乏稳定性,阻碍了实际使用.
- 高吸水能力对于环境水应用至关重要.
研究的目的:
- 通过结合计算方法识别具有高吸水能力的水稳定MOF.
- 探索链接器功能化对MOF吸水的影响.
- 开发机器学习模型来选MOF的稳定性和容量.
主要方法:
- 高通量选MOFs,从实验稳定的候选人开始.
- 具有12个水友群的MOF连接器的功能化.
- 大法典蒙特卡罗 (GCMC) 模拟来计算水的吸收.
- 机器学习模型的开发和应用,用于同时选.
主要成果:
- 在MOF毛孔特征 (腔体直径,毛孔体积) 和吸水量之间发现了正相关性.
- 对MOF与疏水性链接剂观察到的相关性分解.
- 确定了74个有前途的MOF,预计它们具有高水吸收率,具有水稳定性.
结论:
- 机器学习和GCMC模拟对于识别具有所需水性质的MOF是有效的.
- 孔径大小和体积是关键,但链接器化学显著影响水相互作用.
- 已确定的MOF代表了先进水处理技术的有希望的候选人.
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