IRIDIUM/CERIUM-BASED CATALYSTS FOR DRY REFORMING METHANE TO SYNGAS

摘要

A transitional metal catalyst containing an active iridium metal in a content of less 5 than 5 wt% and a ceria-based solid solution support in a content of greater than 95 wt%. The ceria-based solid solution support includes pure CeO2 or includes both CeO2 and MxOy, in which M is lanthanum (La), praseodymium (Pr), zirconium (Zr), or titanium (Ti), 1 ≤ x ≤ 6, and 2 ≤ y ≤ 11. Also disclosed are a deposition-precipitation method, a co-precipitation method, and a sequential precipitation method for preparing such a catalyst.