Toru AKIYAMA
Temperature-programmed desorption analysis of methane adsorbed on nickel-cobalt/yittria-stabilized zirconia cermet particles.
Kazunori SATO
The analysis of anodic oxidation of methane and its products formed at the anode for solid oxide fuel cell (SOFC) is important in order to understand the mechanism of the reaction occurring for the direct electrochemical oxidation of methane. In this research, the adsorption of methane and the desorption of products formed at the anode have been investigated by the temperature programmed desorption (TPD) technique. The TPD analysis was carried out for the particles consisting of Ni1-xCox-YSZ (Yittria-Stabilized Zirconia) and Ni-YSZ. The Ni and Ni1-xCox powders were prepared by the co-precipitation method. The mechanism of the direct oxidation of methane was discussed based on the results obtained by this TPD analysis. The Ni1-xCoxO particles and Ni1-xCoxO mixed with YSZ particles showed a strong adsorption for the gas molecules investigated than the NiO particles and NiO mixed with YSZ particles. It was found that the substitution of Co atoms for Ni atoms in the Ni-Co binary alloy system of the Ni1-XCoX-YSZ cermet affects the adsorptive property for methane
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