低成本纸基无膜直接过氧化氢燃料电池性能的实验研究

Muhammet Çelik
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引用次数: 1

摘要

研制了一种纸基无膜直接过氧化氢燃料电池,并在不同氢氧化钾浓度(1 ~ 7 mol lt -1,步进2)、不同过氧化氢浓度(1、2、3 mol lt -1)和不同温度(20、30、40℃)下进行了测试,并对该燃料电池在停流和连续流条件下的稳定性进行了研究。实验结果表明,当阳极溶液由2 mol l -1 h2o和5 mol l -1氢氧化钾组成,阴极溶液由2 mol l -1硫酸和2 mol l -1过氧化氢组成时,在40℃时获得的最大功率密度为6.79 mW cm -2,最大开路电压为0.87 V。研究发现,如果不断向燃料电池中提供反应物,则可获得3.12 mA cm -2的电流密度。在停止反应物流动的情况下,所开发的燃料电池可以产生91分钟的能量。
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An Experimental Study of the Performance of a Low-Cost Paper-Based Membraneless Direct Hydrogen Peroxide Fuel Cell
A paper-based membraneless direct hydrogen peroxide fuel cell was developed and tested under different potassium hydroxide concentrations (1 to 7 mol lt -1 , stepping by 2), different hydrogen peroxide concentrations (1, 2, 3 mol lt -1 ) and different temperatures (20, 30, 40 o C). Moreover, the developed fuel cell was studied for stability under stopped and continuous flow conditions. From the experiments, it was found that the maximum power density of 6.79 mW cm -2 and the maximum open circuit voltage of 0.87 V at 40 o C were obtained when the anode solution consisted 2 mol lt -1 H 2 O 2 and 5 mol lt -1 potassium hydroxide and cathode solution consisted 2 mol lt -1 sulfuric acid and 2 mol lt -1 hydrogen peroxide. It was found that if the reactants were supplied constantly into the fuel cell, a current density of 3.12 mA cm -2 was obtained. The developed fuel cell produced energy for 91 minutes when the reactant flow was stopped.
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