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

作者：Dong, Bao-Xia; Gao, Jing-Jing; Teng, Yun-Lei^*; Tian, Hui; Wang, Long-Zheng

来源：International Journal of Hydrogen Energy, 2016, 41(11): 5371-5377.

DOI：10.1016/j.ijhydene.2016.01.159

• Hydrogen storage
• Lithium amide
• Potassium amide
• Cycling stability

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.

• 出版日期2016-3-22
• 单位扬州大学