介质结构细胞泡的表面修饰,以增强二元THF/H2酸盐水合物中的储量
Nithin B Kummamuru1,2, Radu-George Ciocarlan3, Maarten Houlleberghs4
1Sustainable Energy Air & Water Technology (DuEL), Department of Bioscience Engineering, University of Antwerp Groenenborgerlaan 171 2020 Antwerpen Belgium.
Sustainable energy & fuels
|June 27, 2024
概括
介质结构细胞泡 (MCF) 的固态调可以将 (H2) 储存在酸盐水合物中提高1.3倍. 接种有机分子可以改善H2的吸收和动力学,从而有效地储存能量.
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.
- 储能 储能 储能 储能 储能 储能
背景情况:
- 在酸盐水合物中储存 (H2) 是一个有前途的储能解决方案.
- 半结构细胞泡 (MCF) 为水合物形成提供了潜在的支架.
- 提高水合物中的H2储存动力学和容量仍然是一个关键的挑战.
研究的目的:
- 为了研究MCF的固态调整,以改善H2在酸盐水合物中的储存.
- 在MCF中增强二元H2-THF酸盐酸盐的形成动力学和容量.
- 探索材料修改与H2储存性能之间的相关性.
主要方法:
- 在MCF的内部表面上植入促进分子 (例如,四基).
- 在修改和未修改的MCF中形成二元H2-THF酸盐水合物.
- 使用X射线衍射 (XRD) 和高压H NMR光谱学进行表征.
- 评估H2吸收能力和水合物形成动力学.
主要成果:
- 与未经修改的MCF相比,修改后的MCF显示H2储存能力高约1.3倍.
- 移植增强了二进制H2-THF酸盐水合物形成的动力学.
- 在262 K的温度下,为碳密度较低的修改MCF,实现了0.52 wt% H2储存的最佳调.
- 一个多阶段的动力模型准确地预测了MCF内的水合物增长.
结论:
- 通过有机分子接种对MCF进行固态调整,可显著增强H2储存在酸盐水合物中.
- 通过接种引入的疏水性促进了H2的封闭,并提高了储存能力.
- 这种方法为推进H2储存技术提供了一个有希望的,节能的方法.
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