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OALib Journal期刊
ISSN: 2333-9721
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ce、zr双组分改性对cu/zsm-5催化剂催化分解no性能的影响
, PP. 475-480
Keywords: 一氧化氮分解,改性,耐氧性,铈,锆
Abstract:
？采用ce、zr双组分对cu/zsm-5催化剂进行改性,利用o2-tpd和tg等手段对催化剂进行表征,考察了离子交换顺序、铈锆摩尔比以及反应条件对催化剂催化分解no性能的影响。结果表明,铜物种是zr-cu-ce/zsm-5催化剂中催化分解no的活性中心,是必须的催化活性组分,ce、zr双组分改性能显著提高催化剂在富氧条件下催化分解no的活性,降低达到最高活性所需要的反应温度。铈锆摩尔比为1:1时,同时进行离子交换制备的zr-cu-ce/zsm-5催化剂催化分解no的活性最好。
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