脱氢
催化作用
氢气储存
材料科学
氢
氢化铝
锂(药物)
氢化物
化学工程
兴奋剂
球磨机
无机化学
氮化物
氢化镁
冶金
化学
纳米技术
有机化学
医学
光电子学
工程类
甲醇
图层(电子)
内分泌学
作者
Shaolei Zhao,Long Liang,Baozhong Liu,Limin Wang,Fei Liang
出处
期刊:Small
[Wiley]
日期:2022-03-20
卷期号:18 (17)
被引量:8
标识
DOI:10.1002/smll.202107983
摘要
The high dehydrogenation temperature of aluminum hydride (AlH3 ) has always been an obstacle to its application as a portable hydrogen source. To solve this problem, lithium nitride is introduced into the aluminum hydride system as a catalyst to optimize the dehydrogenation drastically, which reduces the initial dehydrogenation temperature from 140.0 to 66.8 °C, and provides a stable hydrogen capacity of 8.24, 6.18, and 5.75 wt.% at 100, 90, and 80 °C within 120 min by adjusting the mass fraction of lithium nitride. Approximately 8.0 wt.% hydrogen can be released within 15 min at 100 °C for the sample of 10 wt.% doping. Moderate dehydrogenation temperature slows down the inevitable self-dehydrogenation process during the ball-milling process, and the enhanced kinetics at lower temperature shows the possibility of application in the fuel cell.
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