Abstract
Ti-doped CeO2 mixed oxide powders (CeO2-TiO2) were synthesized by a sol-gel method with varying amount of Ti. The XRD patterns of CeO2-TiO2 (10 and 20 mol% Ti) powders calcined at 800°C for 4 h did not show the TiO2 phase. The electrical conductivity of CeO2-TiO2 mixed oxide was higher than that of CeO2 between 650 and 750°C under reducing atmosphere. The electrocatalytic activity of Ni/CeO2 and Ni/CeO2-TiO2 cermet anodes were examined under the oxidation of methane for solid oxide fuel cells (SOFCs). The Ni/CeO2-TiO2 (20 mol% Ti) anode showed a higher power density than that Ni/CeO2 in both H2 and CH4 fuels. The enhancement of methane oxidation was most likely to be caused by the higher electrical conductivity of the mixed ionic and electronic CeO2-TiO2 oxide cermet. The electrode polarization of the Ti-doped CeO2 anode was lower than that of the non-doped CeO2 anode.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
