Aluminum-Based Hydrogen Generator for a Mini-Type Proton Exchange Membrane Fuel Cell with an Innovative Flow Field Plate

作者：Hsieh, Shou Shing^*; Her, Bing Shyan; Chen, Cheng I

来源：International Journal of Electrochemical Science, 2012, 7(8): 6859-6876.

• Mini Hydrogen Generator
• Proton Exchange Membrane Fuel Cell
• Aluminum
• Sodium Hydroxide

An orientation-free mini-type hydrogen generator, which produces high purity hydrogen from a chemical reaction between aluminum and a sodium hydroxide (NaOH) solution, is designed and fabricated with an innovative perforated flow field plate and tested for a range of related parameters. An examination of the effects of the solution concentration and feeding rate, the initial temperature of the sodium hydroxide solution, as well as the open hole ratio of the perforated flow field plate on the PEM fuel cell performance, is quantitatively made. The results indicate that, with a suitable open ratio of the perforated flow field plate, there is a substantial increase in fuel cell performance, in terms of power density, limiting current density and cell impedance, as compared to previous studies. It is found that the maximum power density can reach to 75 mWcm(-2) and the limiting current density is up to 375 mAcm(-2) at optimum condition for the present aluminum-based hydrogen generator coupled with a PEM fuel cell.

• 出版日期2012-8
• 单位中山大学