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    • Keywords


      $\mu$-SOFCs; BYCF cathode; methane; biogas; sensor.

    • Abstract


      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.

    • Author Affiliations



      1. Energy Technology Program, Faculty of Engineering, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
      2. PSU Energy Systems Research Institute (PERIN), Interdisciplinary Graduate School of Energy Systems, Prince of Songkla University, HatYai, Songkhla 90110, Thailand
      3. Faculty of Science and Industrial Technology, Prince of Songkla University, Suratthani Campus, Surat Thani 84000, Thailand
      4. Department of Mechanical Engineering, Faculty of Engineering, Prince of Songkla University, HatYai, Songkhla 90110, Thailand
      5. Centre for Advanced Material and Energy Sciences (CAMES), Universiti Brunei Darussalam, Jalan Tungku Link, Gadong BE1410, Brunei Darussalam
      6. Department of Mechanical Engineering, Delhi Technological University, Delhi 110042, India
    • Dates

  • Bulletin of Materials Science | News

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      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

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