Hydrogen iodide decomposition catalyst and hydrogen production method

摘要

PROBLEM TO BE SOLVED: To provide a hydrogen iodide decomposition catalyst that enables HI decomposition with a conversion ratio close to equilibration, resists inactivation, and can promote long-term successive reactions.SOLUTION: A hydrogen iodide decomposition catalyst promotes the reaction of decomposing hydrogen iodide into iodine and hydrogen. The hydrogen iodide decomposition catalyst has a porous material carrying a simple substance of cerium oxide, or cerium oxide having metal or metal cation M added thereto, and platinum.SELECTED DRAWING: Figure 1