期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 5, 期 45, 页码 23530-23535出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ta08665b
关键词
-
资金
- National Key Research and Development Program of China [2017YFB0701700]
- National Natural Science Foundation for Distinguished Young Scientists of China [51225205]
- National Natural Science Foundation of China [61274005]
- China Postdoctoral Science Foundation [2016M59103]
Exploring new two-dimensional (2D) crystals attracts great interest in the materials community due to their potential intriguing properties. Here, we report a new family of 2D transition metal borides (labeled as MBenes) that can be produced by selectively etching the A layer from a family of layered transition metal borides (MAB phases). The emerged MBenes are demonstrated to possess great stability with isotropic and ultrahigh Young's modulus. Meanwhile, our results show that 2D Mo2B2 and Fe2B2 MBenes are metallic with excellent electronic conductivity, which are highly desirable for applications in Li-ion batteries (LIB) and electrocatalysis. Furthermore, 2D Mo2B2 and Fe2B2 are confirmed to have an omnidirectional small diffusion energy barrier and high storage capacity for Li atoms, which highlight MBenes as appealing electrode materials for LIBs. Moreover, 2D Fe2B2 MBene also exhibits superior catalytic activity for the hydrogen evolution reaction (HER) with hydrogen adsorption Gibbs free energy close to the optimal value (0 eV), indicating its promising application as an electrocatalyst for hydrogen evolution. Considering the large number of possible MAB phases, more MBenes with attractive applications are anticipated theoretically and/or experimentally in the near future.
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