An alkaline direct NaBH(4)-H(2)O(2) fuel cell with high power density

作者：Cao Dianxue^*; Chen Dandan; Lan Jian; Wang Guiling

来源：Journal of Power Sources, 2009, 190(2): 346-350.

DOI：10.1016/j.jpowsour.2008.12.134

• Pt-Ru
• Pd-Ir
• Borohydride, hydrogen peroxide
• Liquid alkaline fuel cell

A high performance alkaline direct borohydride-hydrogen peroxide fuel cell with Pt-Ru catalyzed nickel foam as anode and Pd-Ir catalyzed nickel foam as cathode is reported. The electrodes were prepared by electrodeposition of the catalyst components on nickel foam. Their morphology and composition were analyzed by SEM-EDX. The effects of concentrations of NaBH(4) and H(2)O(2) as well as operation temperature on the cell performance were investigated. The cell exhibited an open circuit voltage of about 1.0V and a peak power density of 198 mWcm(-2) at a current density of 397 mAcm(-2) and a cell voltage of 0.5V using 0.2 mol dm(-3) NaBH(4) as fuel and 0.4 mol dm(-3) H(2)O(2) as Oxidant operating at room temperature. Electrooxidation of NaBH(4) on Pt-Ru nanoparticles was studied using a rotating disk electrode and complete 8e(-) oxidation was observed in 2 mol dm(-3) NaOH solution containing 0.01 mol dm(-3) NaBH(4).

• 出版日期2009-5-15
• 单位哈尔滨工程大学