Nanoconfinement of borohydrides in CuS hollow nanospheres: A new strategy compared to carbon nanotubes

作者：Lai Qiwen; Christian Meganne; Aguey Zinsou Kondo Francois^*

来源：International Journal of Hydrogen Energy, 2014, 39(17): 9339-9349.

DOI：10.1016/j.ijhydene.2014.04.002

• Hydrogen storage
• Borohydrides
• Nanoconfinement
• Hollow sphere
• Reversibility

Herein, the nanoconfinement of LiBH4 and NaBH4 in a carbon (carbon nanotubes, MBH4@CNT ) and an inorganic support (CuS hollow nanospheres, MBH4@CuS) is compared. Both led to drastic improvements in hydrogen storage properties, with hydrogen desorption occurring from room temperature, and the reversibility greatly enhanced. However, successive hydrogen desorption and absorption cycles for MBH4@CNT led to a decrease in hydrogen storage capacity, most likely due to partial oxidation from oxygen-containing groups on the surface of the carbon nanotubes. In contrast, little to no decrease in capacity was observed for MBH4@CuS, indicating that similar materials may be a more viable alternative for future nanoconfinement research.

• 出版日期2014-6-5