Double-Walled Mesoporous Hydrogen-Bonded Organic Frameworks with High Methane Storage Capacity

作者：Ruihua Zhang, Chun Tang, Shuliang Yang, Penghao Li, Han Han, Yong Wu, Guangcheng Wu, Xueze Zhao, Bai‐Tong Liu, Sheng‐Nan Lei, Bohan Tang, Enxu Liu, Yi-Kang Xing, Charlotte L. Stern, Christos D. Malliakas, James Fraser Stoddart · 发表于：Journal of the American Chemical Society · 年份：2025 · DOI：10.1021/jacs.5c02705 · 被引用次数：32 · 研究领域：Metal-Organic Frameworks: Synthesis and Applications、Covalent Organic Framework Applications、Membrane Separation and Gas Transport

High Resolution Image Download MS PowerPoint Slide The development of mesoporous hydrogen-bonded organic frameworks (HOFs) is critically important for various applications, yet it poses significant challenges. Herein, we present the synthesis and characterization of a robust mesoporous HOF, RP-H200, constructed through the orchestration of π–π stacking and hydrogen bonding interactions in a 2-fold interpenetrated framework. RP-H200 features a unique double-walled structure with a pore size of 3.6 nm, representing the largest pore size among reported HOFs to date. The framework exhibits a high surface area of 2313 m 2 g –1, with aromatic surfaces dominating the mesoporous channels. The methane storage performance of RP-H200 reaches a high capacity of 0.31 g g –1 at 270 K/100 bar and 0.25 g g –1 at 296 K/100 bar. The combination of large permanent mesoporosity, excellent thermal stability, and high surface area in RP-H200 makes it a promising candidate for clean energy storage and other functions.