Effect of nano-structured Ta2C on hydrogen absorption-desorption kinetics of Mg-H-2 system
Effect of nano-structured Ta2C on hydrogen absorption-desorption kinetics of Mg-H-2 system
复制标题
纳米结构Ta2C对Mg-H-2体系吸放氢动力学的影响
DOI：
10.1016/j.ijhydene.2019.06.216
复制
发表时间：
2019
影响因子：
7.2
通讯作者：
Zhang Q A
中科院分区：
文献类型：
--
作者：
Xu C;Zhang Q A
High purity Ta2C was successfully prepared and the hydrogen absorption−desorption kinetic properties of MgH2−10 wt% Ta2C composites were investigated systematically. It was found that the hydrogen absorption of Mg−10 wt% Ta2C (20 nm) composite takes about 5 min to reach saturation at 573 K, and its hydride fully desorbs hydrogen within 15 min at 623 K. These kinetic properties are much better than those of the undoped Mg and MgH2prepared under the same condition, respectively. The improvement in the hydrogen storage kinetics is ascribed to the catalytic effect of Ta2C and its inhibition role in crystallite growth.
