A novel hydrogen storage system of KLi3(NH2)4-4LiH with superior cycling stability

被引：16
作者：
Dong, Bao-Xia [1 ]
Gao, Jing-Jing [1 ]
Teng, Yun-Lei [1 ]
Tian, Hui [1 ]
Wang, Long-Zheng [1 ]
机构：
[1] Yangzhou Univ, Coll Chem & Chem Engn, Yangzhou 225002, Jiangsu, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2016年 / 41卷 / 11期
关键词：
Hydrogen storage; Lithium amide; Potassium amide; Cycling stability; N-H SYSTEM; THERMAL-DECOMPOSITION; LI; DESORPTION; LIAL(NH2)(4); HYDRIDES; COMPLEX;
D O I：
10.1016/j.ijhydene.2016.01.159
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 study, we first examined the hydrogen release, uptake, and reversibility properties of the KLi3(NH2)(4)-4LiH system and elucidated the influence of potassium cations' substitution into LiNH2 on the hydrogen storage properties of the LiNH2-LiH composite. Our results show that mixing of the potassium cations into LiNH2 can destabilize LiNH2, therefore decreasing the hydrogen desorption temperature and enhancing hydrogen desorption rate of the LiNH2-LiH system. Notably, the KLi3(NH2)(4)-4LiH composite exhibits a superior cycling stability compared with the LiNH2-LiH composite prepared under the same condition. Copyright (C) 2016, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：5371 / 5377
页数：7
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