Simulation of cryo-adsorptive hydrogen storage of covalent organic frameworks in a wide pressure zone

被引:0
作者
Gao, Linlin [1 ,2 ]
Wang, Haocheng [1 ]
Dong, Xueqiang [1 ,2 ]
Zhang, Teng [3 ]
Gong, Maoqiong [1 ,2 ]
机构
[1] Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Cryogen, POB 2711, Beijing 100190, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100039, Peoples R China
[3] Beijing Inst Technol, Adv Technol Res Inst Jinan, Jinan 250300, Shandong, Peoples R China
关键词
COFs; Cryo-adsorptive hydrogen; Hydrogen storage density; Simulation; ACTIVATED CARBON; METHANE; PERFORMANCE; CAPACITY;
D O I
10.1016/j.ijhydene.2024.07.311
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Cryo-adsorptive hydrogen storage exhibits high hydrogen storage density and low storage pressure, rendering it highly promising. Among various adsorption materials, covalent organic frameworks (COFs) stand out as promising materials for cryo-adsorptive hydrogen storage. However, current research has problems of low research pressure and limited hydrogen storage density, which hinder the widespread application of cryoadsorptive hydrogen storage. In this work, the gravimetric and volumetric hydrogen storage densities of different cryo-adsorptive hydrogen storage tanks are simulated and predicted in the pressure range of 0.1-55 MPa at 77 K. Nine kinds of COFs are selected as adsorbents for cryo-adsorptive hydrogen storage. The modified Dubinin-Astakhov (D-A) model is used to simulate the hydrogen adsorption isotherms. The relevant model parameters of COFs are nonlinearly fitted and then validated for reliability. The results indicate that under specific conditions, 3D COFs can achieve hydrogen storage density comparable to liquid hydrogen at relatively lower pressures, exhibiting excellent cryo-adsorptive hydrogen storage performance with promising application prospects.
引用
收藏
页码:765 / 773
页数:9
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