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钴修饰氮化铝纳米管的储氢性能
引用本文:李平,陈艳,周庭艳,杨昆,李阳军,杨秀德,吴波.钴修饰氮化铝纳米管的储氢性能[J].原子与分子物理学报,2021,38(4):042003.
作者姓名:李平  陈艳  周庭艳  杨昆  李阳军  杨秀德  吴波
作者单位:遵义师范学院,遵义师范学院,遵义师范学院,贵州师范大学,遵义师范学院,遵义师范学院,遵义师范学院
摘    要:本文采用密度泛函理论中的广义梯度近似系统地研究了钴原子修饰的(5,5)单壁氮化铝纳米管(SWANNT)的几何结构、电子性质以及储氢性能.研究结果表明:钴原子倾向于以顶位的形式吸附于(5,5) SWANNT表面N原子上.在钴原子周围可以吸附4个完整的H分子,平均吸附能为0.624 e V,表明钴原子修饰的SWANNT材料有望在温和环境中实现对H分子的快速吸附和脱附.

关 键 词:SWANNT  第一性原理  密度泛函理论
收稿时间:2020/7/19 0:00:00
修稿时间:2020/8/17 0:00:00

Hydrogen storage of Co-decorated AlN nanotube
Li Ping,Chen Yan,Zhou Ting-Yan,Yang Kun,Li Yang-Jun,Yang Xiu-De and Wu Bo.Hydrogen storage of Co-decorated AlN nanotube[J].Journal of Atomic and Molecular Physics,2021,38(4):042003.
Authors:Li Ping  Chen Yan  Zhou Ting-Yan  Yang Kun  Li Yang-Jun  Yang Xiu-De and Wu Bo
Institution:Zunyi Normal University,Zunyi Normal University,Zunyi Normal University,Guizhou Normal University,Zunyi Normal University,Zunyi Normal University,Zunyi Normal University
Abstract:A comprehensive density functional theory (DFT) study of the geometric structures, electronic properties, and hydrogen storage properties on Co-decorated (5,5) single-walled aluminum nitride nanotube (SWANNT) was carried out. The results show that Co atom prefers to bind on the top of N atom at the surface of (5,5) SWANNT. Co atom can adsorb up to four H2 molecules with an average adsorption energy of 0.624 eV, which indicates that Co-decorated SWANNT is expected to rapidly adsorb and desorb H2 molecules under the condition of moderate temperature and pressure.
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