A composite of borohydride and super absorbent polymer for hydrogen generation

作者：Li Z P^*; Liu B H; Liu F F; Xu D

来源：Journal of Power Sources, 2011, 196(8): 3863-3867.

DOI：10.1016/j.jpowsour.2010.11.003

• Underwater vehicle
• Sodium borohydride
• Hydrogen evolution
• Composite material
• Gel
• Borohydride hydrolysis

To develop a hydrogen source for underwater applications, a composite of sodium borohydride and super absorbent polymer (SAP) is prepared by ball milling sodium borohydride powder with SAP powder, and by dehydrating an alkaline borohydride gel. When sodium polyacrylate (NaPAA) is used as the SAP, the resulting composite exhibits a high rate of borohydride hydrolysis for hydrogen generation. A mechanism of hydrogen evolution from the NaBH(4)-NaPAA composite is suggested based on structure analysis by X-ray diffraction and scanning electron microscopy. The effects of water and NiCl(2) content in the precursor solution on the hydrogen evolution behavior are investigated and discussed.

• 出版日期2011-4-15
• 单位浙江大学