1. A novel design of solid-state NaBH4 composite as a hydrogen source for 2W PEMFC applications
- Author
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Hsueh, Chan-Li, Liu, Cheng-Hong, Chen, Bing-Hung, Lee, Ming-San, Chen, Cheng-Yen, Lu, Yu-Wen, Tsau, Fanghei, and Ku, Jie-Ren
- Subjects
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HYDROGEN production , *PROTON exchange membrane fuel cells , *COMPOSITE materials , *SILICONE rubber , *HYDROLYSIS , *SODIUM borohydride , *SOLID state chemistry , *CATALYSTS - Abstract
Abstract: 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 25mLmin−1 for at least 2h 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. [Copyright &y& Elsevier]
- Published
- 2011
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