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      Articles written in Bulletin of Materials Science

    • A novel micro-solid oxide fuel cell ($\mu$-SOFC) for detecting methane content in biogas

      S PHAIJIT M SUKLUENG S MARTHOSA S NIYOMWAS N Y VOO A KUMAR

      More Details Abstract Fulltext PDF

      A novel micro-solid oxide fuel cell ($\mu$-SOFC), with a rectangular saw-tooth shape, was designed with a 50 wt% BYCF $+$ 50 wt% GDC$_{10}$ cathode and a 60 wt% NiO $+$ 40 wt% GDC10 anode deposited on a GDC$_{10}$ electrolyte substrate by the spray pyrolysis technique. $\mu$-SOFC receives methane only (CH$_4$) as fuel gas from one side. The fuel gas was applied at a flow rate of 0.2 l min$^{−1}$. The power density obtained was 1.0 $\mu$W at 800$^{\circ}$C. Voltage levels generated by the $\mu$-SOFCat 40–99.99% CH$_4$ was highly accurate representing the quantity of CH$_4$. Low accuracy was observed at 10–30% of CH$_4$. Therefore, $\mu$-SOFC is an application of SOFC technology to be a sensor for economically detecting CH$_4$ in a biogas system, while being capable of operating in humid conditions at high temperatures.

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