单层
吸附
密度泛函理论
兴奋剂
基质(水族馆)
分子
氢气储存
过渡金属
材料科学
氢
物理化学
化学物理
计算化学
化学
无机化学
纳米技术
催化作用
有机化学
光电子学
海洋学
地质学
作者
Shulin Yang,Yanan Liu,Gui Lei,Yulin Xie,Liping Peng,Hu Xu,Zhao Wang,Haoshuang Gu
标识
DOI:10.1016/j.ijhydene.2021.04.200
摘要
The adsorption of hydrogen (H2) molecules on MoS2 monolayers doped with Fe, Co, Ni, Ru, Rh, Pd, Os, Ir or Pt was calculated via first-principle density functional theory (DFT). The H2 was found to interact most strongly with the MoS2 doped with Os with a higher adsorption energy of −1.103 eV. Investigations of the adsorptions of two to five H2 molecules on Os-doped MoS2 monolayers indicate that there are at most four H2 interacting stably with the substrate with a promising average adsorption energy of −0.792 eV. Molecular dynamics simulations also confirmed that the four H2 molecules can still be reasonably adsorbed and stored on the Os-doped MoS2 monolayer with a comparable average adsorption energy of −0.713 eV at 300 K. This study indicates that MoS2 monolayer doped with Os is a promising substrate to interact strongly with H2 and can be applied to effectively store H2 at room temperature.
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