Improved Performance and Durability of Anode Supported SOFC Operating on Biogas

Friday, 31 July 2015: 08:40
Lomond Auditorium (Scottish Exhibition and Conference Centre)
L. Troskialina (University of Birmingham), A. Dhir (UNIVERSITY OF BIRINGHAM), and R. Steinberger-Wilckens (University of Birmingham,UK)
Performance curves for both Sn-doped Ni-YSZ and un-doped Ni-YSZ single cells are presented in Fig.1.  The cell tests were carried out at 750oC under dry hydrogen flowing at 7mL/min Helium and 21mL/min H2 followed by biogas flowing at 7mL/min CO2: 14mL/min CH4: 7 mL/min He with the cathode side open to ambient air.   The cells were allowed to reduce under H2 for a minimum of 3hrs in OCV mode before any initial   data was obtained. Operation on hydrogen was run for 26 hours to stabilize cell performance before the fuel was switched to biogas. After stabilization on hydrogen the Sn-doped Ni-YSZ gave 390mA/cm2 at 0.7V compared to the un-doped Ni-YSZ cell which gave 100mA/cm2 at 0.7V.