石墨烯
石墨
氢
化学物理
插层(化学)
俘获
材料科学
纳米技术
分子
分子动力学
渗透
化学工程
计算化学
化学
无机化学
膜
有机化学
复合材料
生态学
生物化学
工程类
生物
作者
Jie Xu,Weilin Li,Wenna Tang,Gan Liu,Yujian Zhu,Guowen Yuan,Lei Wang,Xiaoxiang Xi,Libo Gao
出处
期刊:Nano Letters
[American Chemical Society]
日期:2023-08-16
卷期号:23 (17): 8203-8210
标识
DOI:10.1021/acs.nanolett.3c02321
摘要
There is a lack of deep understanding of hydrogen intercalation into graphite due to many challenges faced during characterization of the systems. Therefore, a suitable route to trap isolated hydrogen molecules (H2) between the perfect graphite lattices needs to be found. Here we realize the formation of hydrogen bubbles in graphite with controllable density, size, and layer number. We find that the molecular H2 cannot be diffused between nor escape from the defect-free graphene lattices, and it remains stable in the pressurized bubbles up to 400 °C. The internal pressure of H2 inside the bubbles is strongly temperature dependent, and it decreases as the temperature rises. The proton permeation rate can be estimated at a specific plasma power. The producing method of H2 bubbles offers a useful way for storing hydrogen in layered materials, and these materials provide a prospective research platform for studying nontrivial quantum effects in confined H2.
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