Li decorated heteroborospherene C4B32 as high capacity and reversible hydrogen storage media: A DFT study

被引：17

作者：

Liu, Pingping ^{[1
,2
]}

Zhang, Yafei ^{[3
]}

Liu, Fangming ^{[1
,2
]}

Zhou, Dan ^{[1
,2
]}

机构：

[1] Yangtze Normal Univ, Coll Mat & Engn, Chongqing 408000, Peoples R China

[2] Yangtze Normal Univ, Chongqing Key Lab Extraordinary Bond Engn & Adv M, Chongqing 408100, Peoples R China

[3] Chengdu Univ, Sch Elect Informat & Elect Engn, Chengdu 610106, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2022年 / 47卷 / 23期

关键词：

Hydrogen storage; Adsorption; First principles; Heteroborospherene; GENERALIZED GRADIENT APPROXIMATION; PROMISING MATERIALS; GRAPHDIYNE; MOLECULES; FULLERENE; GRAPHYNE; SOLIDS; B-80; TI;

D O I：

10.1016/j.ijhydene.2022.01.208

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this work, adsorption of H-2 molecules on heteroborospherene C-2v C4B32 decorated by alkali atoms (Li) is studied by density functional theory calculations. The interaction between Li atoms and C4B32 is found to be strong, so that it prevents agglomeration of the former. An introduced hydrogen molecule tilts toward the Li atoms and is stably adsorbed on C4B32. It is obtained that Li4C4B32 can store up to 12H(2) molecules with hydrogen uptake capacity of 5.425 wt% and average adsorption energy of-0.240 eV per H-2. Dynamics simulation results show that 6H(2) molecules can be successfully released at 300 K. Obtained results demonstrate that Li decorated C4B32 is a promising material for reversible hydrogen storage. (c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：11948 / 11954

页数：7

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