期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 9, 期 15, 页码 1802-1808出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/b618053a
关键词
-
资金
- EPSRC [EP/D069076/1, EP/D074312/1, EP/D074460/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [GR/T24296/01, EP/D074460/1, EP/D069076/1, EP/D074312/1] Funding Source: researchfish
The challenge of storing hydrogen at high volumetric and gravimetric density for automotive applications has prompted investigations into the potential of cryo-adsorption on the internal surface area of microporous organic polymers. A range of Polymers of Intrinsic Microporosity (PIMs) has been studied, the best PIM to date (a network-PIM incorporating a triptycene subunit) taking up 2.7% H-2 by mass at 10 bar/77 K. HyperCrosslinked Polymers (HCPs) also show promising performance as H-2 storage materials, particularly at pressures 410 bar. The N-2 and H-2 adsorption behaviour at 77 K of six PIMs and a HCP are compared. Surface areas based on Langmuir plots of H2 adsorption at high pressure are shown to provide a useful guide to hydrogen capacity, but Langmuir plots based on low pressure data underestimate the potential H2 uptake. The micropore distribution influences the form of the H2 isotherm, a higher concentration of ultramicropores (pore size < 0.7 nm) being associated with enhanced low pressure adsorption.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据