氢气储存
多孔性
重量分析
材料科学
超分子化学
甲烷
稳健性(进化)
化学工程
氢
巴(单位)
氢键
纳米技术
分子
复合材料
化学
有机化学
地质学
工程类
生物化学
海洋学
合金
基因
作者
Jia‐Xin Wang,Xu Zhang,Chenghao Jiang,Tengfei Zhang,Jiyan Pei,Wei Zhou,Taner Yildirim,Banglin Chen,Guodong Qian,Bin Li
标识
DOI:10.1002/anie.202411753
摘要
Development of highly porous and robust HOFs for high‐pressure methane and hydrogen storage remains a grand challenge due to the fragile nature of hydrogen bonds. Herein, we report a strategy of constructing double‐walled framework to target highly porous and robust HOF (ZJU‐HOF‐5a) for extraordinary CH4 and H2 storage. ZJU‐HOF‐5a features a minimized twofold interpenetration with double‐walled structure, in which multiple supramolecular interactions are existed between the interpenetrated walls. This structural configuration can notably enhance the framework robustness while maintaining its high porosity, affording one of the highest gravimetric and volumetric surface areas of 3102 m2 g−1 and 1976 m2 cm−3 among the reported HOFs so far. ZJU‐HOF‐5a exhibits an extremely high volumetric H2 uptake of 43.6 g L−1 at 77 K/100 bar and working capacity of 41.3 g L−1 under combined swing conditions, and also impressive methane storage performance with a 5−100 bar working capacity of 187 (or 159) cm3 cm−3 at 270 K (or 296 K). SCXRD studies on CH4‐loaded ZJU‐HOF‐5a reveal that abundant supramolecular binding sites combined with ultrahigh porosities account for its high CH4 storage capacities. Combined with high stability, super‐hydrophobicity, and easy‐recovery, ZJU‐HOF‐5a is placed among the most promising materials for H2 and CH4 storage applications.
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