直接液化石油气火焰燃料电池的制备与性能

Preparation and performance of direct liquefied petroleum gas fuel cells

采用流延-压烧工艺制备Ni-YSZ‖YSZ|GDC‖GDC-LSCF阳极支撑型固体氧化物燃料电池(SOFC)。以液化石油气(LPG)火焰作为阳极燃料,直接为电池的运行提供热量支撑,采用浸渍法将质量分数为0.8%的Ru-CeO_(2)纳米粒子煅烧在Ni-YSZ阳极内部,组装为直接火焰燃料电池(DFFC)。通过X射线衍射(XRD)、扫描电镜(SEM)及电化学测试等技术对阳极材料的物相、微观结构、电化学性能进行分析。结果表明:LPG气流量为400 mL/min时Ru-CeO_(2)负载的阳极电池最大功率密度达到160.2 mW/cm^(2),相较原电池提高10%;极化电阻降低到0.75Ω·cm^(2),运行40 h后没有产生明显积碳现象;Ru-CeO_(2)的引入有助于提高DFFC在LPG火焰下的催化活性和抗积碳性能。

Ni-YSZ‖YSZ|GDC‖ GDC-LSCF anode supported solid oxide fuel cell(SOFC) was prepared by tape casting-pressing sintering process.The liquefied petroleum gas(LPG) flame was used as the anode fuel to directly provide heat support for the operation of the battery.The 0.8 %(mass fraction) Ru-CeO_(2)nanoparticles were calcined inside the Ni-YSZ anode by impregnation method and assembled into a direct flame fuel cell(DFFC).The phase,microstructure and electrochemical properties of the anode materials were analyzed by XRD,SEM and electrochemical test.The results show that when the LPG gas flow is 400 mL/min,the maximum power density of the anode cell loaded with Ru-CeO_(2)reaches 160.2 mW/cm^(2),which is 10% higher than the original.The polarization resistance is reduced to 0.75 Ω·cm^(2) and there is no obvious carbon deposition after 40 hours of operation.Therefore,the introduction of Ru-CeO_(2)is helpful to improve the catalytic activity and anti-carbon deposition performance of DFFC under LPG flame.