Energy security and increased concern over environmental protection have spurred a dramatic world-wide growth in research and development of fuel cells, which electrochemically convert incoming fuel into electricity with no or low pollution. Fuel cell technology has become increasingly attractive to a number of sectors, including utility, automotive, and defense industries. Among the various types of fuel cells, solid oxide fuel cells (SOFCs) operate at high temperature (typically 650-1,000oC) and have advantages in terms of high conversion efficiency and the flexibility of using hydrocarbon fuels, in addition to hydrogen. 1-5 The high temperature operation, however, can lead to increased mass transport and interactions between the surrounding environment and components that are required to be stable during a lifetime of thousands of hours and up to hundreds of thermal cycles. For stacks with relatively low operating temperatures (
Revised: June 27, 2012 |
Published: December 9, 2007
Citation
Yang Z., J.W. Stevenson, and P. Singh. 2007.Corrosion and Protection of Metallic Interconnects in Solid Oxide Fuel Cells. In Materials for the Hydrogen Economy, edited by GJ Thomas and RH Jones. 229-250. Boca Raton, Florida:CRC Press.PNNL-SA-54296.