A new solid material for hydrogen storage

作者：Zheng Xueping^*; Zheng Jiaojiao; Liu Shenglin; Qu Xuanhui; Li Ping; Gao Yanbei; Luo Weihua

来源：International Journal of Hydrogen Energy, 2015, 40(33): 10502-10507.

DOI：10.1016/j.ijhydene.2015.07.015

• A new hydrogen storage material
• Hydrolysis product
• Reversible capacities
• Hydrogen storage

A new hydrogen storage material, a hydrolysis product of sodium borohydride (HPSB) which shows good reversible capacities for hydrogen storage at 150 degrees C under vacuum condition after absorbing hydrogen during 5 min at room temperature under 3 MPa hydrogen pressure, is reported. It has been shown that both changing the catalysts for NaBH4 hydrolysis and adding catalysts directly into HPSB are two very effective methods to further improve HPSB hydrogen storage capacity. The dehydrogenation of HPSB-Y2O3 and TiO2-doped HPSB-Y(2)o(3) were found to reach 2.4 wt.% and 4.6 wt.%, respectively. Importantly, the reversible dehydrogenation ability of HPSB-Y2O3 does not decrease after successive cycles. In comparison, the reversible dehydrogenation of HPSB-CeO2 is higher and reaches 5.9 wt.% at 150 degrees C after hydrogen adsorption for 5 min at room temperature under 3 MPa hydrogen pressure. Compared to other hydrogen storage materials, especially solid-state hydrogen storage, these materials show several advantages in their capacity and, especially, their ability to operate under mild conditions.

• 出版日期2015-9-7
• 单位北京科技大学; 长安大学