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Precious metal catalysts have been used in many industries, such as refinery, petrochemicals, polymer, chemicals, pharmaceuticals, and environment, For example, automotive industry utilizes large amounts of precious metal catalysts as a part of auto exhaust gas purifier, because of their high activity and selectivity and stability under various reaction conditions. This article, introduces wide variety of applications on precious metal catalysts. We recognize that precious metal catalysts play very important role in our lives. Not only unique properties of precious metals but also advanced preparation technology allow us to use precious metal catalysts for wide range of applications. Principle of precious metal catalyst preparation is introduced, and various industrial applications of precious metal catalysts follow. Applications of precious metal catalysts were disclosed by some literatures. (Rylander 1967) (Bartholomew and Farrauto 2006 )

Role of Precious Metal Catalysts