The single cell of low temperature solid oxide fuel cell with sodium carbonate-SDC (samarium-doped ceria) as electrolyte and biodiesel as fuel

10th Joint Conference on Chemistry

Rahmawati, F.^1 ; Nuryanto, A.^1 ; Nugrahaningtyas, K.D.^1

Research Group of Solid State Chemistry and Catalysis, Chemistry Department, Sebelas Maret University, Jl. Ir. Sutami 36 A, Kentingan Surakarta

57126, Indonesia^1

关键词: Change of characteristics;    Electrical conductivity;    Fuel cell operation;    Fuel cell performance;    Low temperature solid oxide fuel cells;    Maximum power density;    Power densities;    Samarium doped cerias;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/107/1/012035/pdf
DOI  :  10.1088/1757-899X/107/1/012035

来源: IOP

【 摘 要 】

In this research NSDC (composite of Na2CO3-SDC) was prepared by the sol-gel method to produce NSDC1 and also by the ceramic method to produce NSDC2. The prepared NSDC then were analyzed by XRD embedded with Le Bail refinement to study the change of characteristic peaks, their crystal structure, and their cell parameters. Meanwhile, the measurement of impedance was conducted to study the electrical conductivity of the prepared materials. A single cell was prepared by coating NSDC-L (a composite of NSDC with Li0.2Ni0.7Cu0.1O2) on both surfaces of NSDC. The NSDC-L was used as anode and cathode. The ionic conductivity of NSDC1 and NSDC2 at 400oC are 4.1109 x 10-2S.cm-1and 1.6231 x 10-2S.cm-1, respectively. Both electrolytes have ionic conductivity higher than 1 x 10-4S.cm-1, therefore, can be categorized as good electrolyte [1]. However, the NSDC1 shows electrodeelectrolyte conduction. It indicates the existence of electronic migration from electrolyte- electrode or vice versa. Those may cause a short circuit during fuel cell operation and will reduce the fuel cell performance fastly. The single cell tests were conducted at 300, 400, 500 and 600 °C. The single fuel cell with NSDC1 and NSDC2 as electrolyte show maximum power density at 400 °C with the power density of 3.736 x 10-2mW.cm-2and 2.245 x 10-2mW.cm-2, respectively.