| 新型汽车尾气净化催化剂的研究 |
| 摘要点击 1507 全文点击 2431 投稿时间：1997-09-20 |
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| 中文关键词 汽车排气 新型催化剂 催化剂性能 起燃温度 热稳定性 |
| 英文关键词 automobile exhaust control catalyst catalytic performances light-off temperature thermal durability |
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| 中文摘要 |
| 研究La-Co-Cu-Mn-Ce-Pd催化剂的活性和热稳定性。结果表明,该催化剂具有低温活性良好、活性高以及热稳定性好的性能特点。对CO、HC氧化的T50%和T100%分别约为182℃、238℃和240℃、265℃。催化剂表面组分发生强相互作用形成3种活性中心,是催化剂低的起燃温度、高活性的原因。催化剂高温处理后未发生烧结,活性未下降,热稳定性良好. |
| 英文摘要 |
| The catalytic activity and thermal durability of La-Co-Cu-Mn-Ce-Pd catalyst were studied.The research has revealed that this catalyst has low light-off temperature,good catalytic activity and thermal durability.On this catalyst,the light-off temperatures of CO and HC are 182℃ and 230℃ and the complete oxide temperatures of them are 240℃ and 265℃ respectively.The strong interaction among the active components is responsible for the high activities and low light-off temperatures of the catalysts.There is no sintering on the catalyst after being processed at high temperatures. |
