A highly active Co-B catalyst for hydrogen generation from sodium borohydride hydrolysis

作者：Liu Bin Hong^*; Li Qian

来源：International Journal of Hydrogen Energy, 2008, 33(24): 7385-7391.

DOI：10.1016/j.ijhydene.2008.09.055

• Cobalt boride
• Catalyst
• Hydrogen generation
• Sodium borohydride
• Hydrolysis

Co-B catalysts were prepared by the chemical reduction of COCl(2) with NaBH(4) for hydrogen generation from borohydride hydrolysis. The catalytic properties of the Co-B catalysts were found to be sensitive to the preparation conditions including pH of the NaBH(4) Solution and mixing manner of the precursors. A Co-B catalyst with a very high catalytic activity was obtained through the formation of a colloidal Co(OH)(2) intermediate. The ultra-fine particle size of 10 nm accounted for its super activity for hydrogen generation with a maximum rate of 26 L min(-1) g(-1) at 30 degrees C. The catalyst also changed the hydrolysis kinetics from zero-order to first-order.

• 出版日期2008-12
• 单位浙江大学