Electronic structure transformation induced by dual-metal orbital hybridization in RexMn1-xS2 monolayer for hydrogen evolution reaction
Electronic structure transformation induced by dual-metal orbital hybridization in RexMn1-xS2 monolayer for hydrogen evolution reaction
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RexMn1-xS2单层中双金属轨道杂化诱导的电子结构转变用于析氢反应
DOI:
10.1016/j.surfin.2021.101671
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发表时间:
2021-12
影响因子:
6.2
通讯作者:
Lizhe Liu
中科院分区:
文献类型:
--
作者:
Yun Shan;Tinghui Li;Lizhe Liu
Electronic structure transformation of two-dimensional materials plays a critical role in determining their physical and chemical characteristics. Herein, the dual-metal orbital hybridization strategy is proposed to disclose the electronic structure transition in RexMn1-xS2monolayer based on the density function theory. The calculations disclose that the dual-metal atomic hybridization makes it transforms into indirect semiconductor from direct feature. More interestingly, the orbital interaction between Mn and Re atoms can efficiently reduce carrier effective mass and work function, leading to an excellent hydrogen evolution reaction (HER). As a result, the Gibbs free energy of hydrogen adsorbed onto surface site tends to zero, demonstrating a good HER catalytic activity. In addition, the contribution of structural deformation onto electronic structure transformation is also considered into our system to provide a useful guidance for follow-up experimental study.
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