控制晶体多孔有机盐的结晶和水合状态
Megan O'Shaughnessy1,2, Alex C Padgham1, Rob Clowes1
1Materials Innovation Factory and Department of Chemistry, University of Liverpool, 51 Oxford Street, Liverpool, L7 3NY, UK.
Chemistry (Weinheim an der Bergstrasse, Germany)
|August 24, 2023
概括
研究人员开发了一种新的多孔材料,CPOS-7,使用高通量选和流量化学. 这一进步克服了水晶多孔有机盐 (CPOS) 的溶剂限制,并显示了捕获二氧化碳的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 超分子化学 超分子化学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 晶体多孔有机盐 (CPOS) 的可溶性较差,限制了合成溶剂的选择.
- 现有的方法在与隔离,扩展和扩大可获得的多孔材料的范围进行斗争.
- 由于CPOS构件的溶解度较低,因此需要新的合成策略.
研究的目的:
- 通过高通量选来克服CPOS合成中的溶剂限制.
- 开发一种新的多孔材料,CPOS-7,具有改进的性能.
- 探索流体化学在合成CPOS中的应用.
主要方法:
- 高通量溶剂选,以确定合适的结晶条件.
- 试图批量结晶,使用或不使用酸作为脱水剂.
- 流化学的应用,用于直接的,高晶度的CPOS-7合成.
- 气体吸附分析以评估二氧化碳捕获能力.
主要成果:
- 鉴定了一种新的多孔盐,CPOS-7,来自四甲 (TSPM) 和四甲 (TAPM).
- 酸成功地阻碍了竞争性水合相 (Hydrate2920) 的形成.
- 流化学使CPOS-7的直接高晶度形成成为可能,绕过了批量结晶的问题.
- CPOS-7 显示出有前途的二氧化碳吸收率 (4.3 mmol/g 在 195 K 温度下),表明高孔隙性.
结论:
- 高通量选和流化学显著扩大了CPOS的合成范围.
- CPOS-7是一种新型,高度多孔的材料,有可能用于二氧化碳捕获应用.
- 流化学为可扩展和高质量的CPOS合成提供了可行的途径.
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