Abstract
Long term durability of solid oxide fuel cell (SOFC) is one of the critical problems to be solved. Thermal stress has severe impact to SOFC electrolyte and electrode which is made from dense or porous ceramics. SOFC stack has much more risk to lead thermal crack by inhomogeneous temperature distribution due to the stack structure and its flow channel shape. Direct internal reforming also increases the risk of SOFC thermal destruction. Paper-structured porous catalyst putting in SOFC stack can control the gas flow and reforming reaction distribution at the cell inside. This paper-structured catalyst also have disadvantage to lead much pressure loss. However, gas diffusivity control and internal reforming rate have an effect to decrease the temperature drop and keep homogeneous temperature on SOFC anode.
