流化床电极直接碳燃料电池实验研究

Experimental Study of a Fluidized Bed Electrode Direct Carbon Fuel Cell

将流化床电极应用到直接碳燃料电池(DCFC)中,得到一种新型的流化床电极直接碳燃料电池(FBEDCFC).为研究该燃料电池的输出特性,搭建了环形FBEDCFC实验装置,分析了反应温度、阴极气体流速、阳极气体流速、镍催化剂添加量和炭颗粒粒径对燃料电池放电曲线的影响.结果表明:反应温度为923K、阳极气体流速为18.59mm/s、阴极气体流速为19.57mm/s、镍催化剂添加量为45g、炭颗粒粒径为2.5~3.5mm时,可得到FBEDCFC的开路电压和最大输出功率密度,分别为0.896V和28.70mW/cm2.

By applying the fluidized bed electrode to direct carbon fuel cell,a novel fluidized bed electrode direct carbon fuel cell(FBEDCFC)was developed.To study the output properties of the FBEDCFC,an annular experimental facility was set up,based on which the effects of following factors on the discharge curves were analyzed,such as the reaction temperature,cathode/anode gas flow,nickel catalyst content and carbon particle size,etc.Results show that the open circuit voltage and maximum output power density of respectively 0.896 Vand 28.70mW/cm2 can be reached by the FBEDCFC,under the conditions of reaction temperature at 923 K,anode gas flow of 18.59mm/s,cathode gas flow of 19.57mm/s,nickel catalyst content of 45 g and carbon particle size in 2.5-3.5mm.