A novel design of solid-state NaBH4 composite as a hydrogen source for 2 W PEMFC applications

作者：Hsueh, Chan Li; Liu, Cheng Hong; Chen, Bing Hung; Lee, Ming San; Chen, Cheng Yen; Lu, Yu Wen; Tsau, Fanghei; Ku, Jie Ren^*

来源：Journal of Power Sources, 2011, 196(7): 3530-3538.

DOI：10.1016/j.jpowsour.2010.12.058

• Hydrogen generation
• Sodium borohydride
• Hydrolysis
• Catalyst
• Silicone rubber

Hydrolysis of sodium borohydride (NaBH4) is a promising method for on-board hydrogen supply to polymer electrolyte membrane fuel cells (PEMFC). This article presents an attempt to design a novel solid-state NaBH4 composite, which is made up of NaBH4 powder, Co2 /IR-120 catalyst and silicone rubber, for hydrogen generator. The silicone rubber can act as a stabilizer in the solid-state NaBH4 composite because of its surface hydrophobicity leading to reduced diffusion rate of water into the composite. The solid-state NaBH4 composite can produce hydrogen stably near 25 mL min(-1) for at least 2 h without employment of any mechanical control system. Using the hydrogen generated from the solid-state NaBH4 composite, a 2W PEMFC stack is successfully operated to power a cellular phone.

• 出版日期2011-4-1
• 单位中山大学