Abstract
Solid oxide fuel cells (SOFCs) are promising power generation systems because of their high energy conversion efficiency, fuel flexibility, and low emissions. High-temperature operation of SOFCs enables the internal reforming of fuels such as hydrocarbons and alcohols in the cell chamber, which leads to the construction of a simplified generation system. In addition to the high activity for the reforming and electrochemical oxidation of fuel, the anode is required to be tolerant to the carbon deposition formed by the decomposition of hydrocarbon fuels. In this review, we focus on the degradation of the anode induced by the carbon deposition in the internal reforming operation of SOFCs. We also provided important factors to design the anode with high tolerance to carbon deposition.
