Hydrogen generation from catalytic hydrolysis of sodium borohydride solution using Cobalt-Copper-Boride (Co-Cu-B) catalysts

作者：Ding, Xin Long; Yuan, Xianxia^*; Jia, Chao; Ma, Zi Feng

来源：International Journal of Hydrogen Energy, 2010, 35(20): 11077-11084.

DOI：10.1016/j.ijhydene.2010.07.030

• Sodium borohydride
• Hydrogen generation
• Catalyst

Co-Cu-B, as a catalyst toward hydrolysis of sodium borohydride solution, has been prepared through chemical reduction of metal salts, CoCl2 center dot 6H(2)O and CuCl2, by an alkaline solution composed of 7.5wt% NaBH4 and 7.5wt% NaOH. The effects of Co/Cu molar ratio, calcination temperature, NaOH and NaBH4 concentration and reaction temperature on catalytic activity of Co-Cu-B for hydrogen generation from alkaline NaBH4 solution have been studied. X-ray diffraction (XRD), scanning electron microscope (SEM) and Nitrogen adsorption-desorption isotherm have been employed to understand the results. The Co-Cu-B catalyst with a Co/Cu molar ratio of 3:1 and calcinated at 400 degrees C showed the best catalytic activity at ambient temperature. The activation energy of this catalytic reaction is calculated to be 49.6 kJ mol(-1).

• 出版日期2010-10
• 单位上海交通大学