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SO_2对钙铁矿型及其它氧化物型的CO氧化催化剂是一种强烈毒物,而汽车尾气中的SO_2含量一般为10—20ppm.因此,这类催化剂对SO_2的敏感性是其实际应用的一
SO 2 is a strong toxicant for calcite and other oxide-type CO oxidation catalysts, while the SO 2 content of the vehicle exhaust is typically 10-20 ppm. Therefore, the sensitivity of these catalysts to SO 2 is one of its practical applications