| 铑含量对Pt-Rh-Pd/Al2O3催化剂的氧化还原性能的影响 |
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| 引用本文： | 旷成秀,刘康强,李风仪.铑含量对Pt-Rh-Pd/Al2O3催化剂的氧化还原性能的影响[J].江西化工,2005(3):86-88. |
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| 作者姓名： | 旷成秀 刘康强 李风仪 |
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| 作者单位： | 1. 九江学院化学化工学院,江西九江,332005
2. 南昌大学化学系,江西南昌,330047 |
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| 摘 要： | 应用微反应装置研究了铑含量对Pt-Rh-Pd/Al2O3催化剂的催化活性以及吸附性能的影响.结果表明Rh含量在0%～0.015%之间时,催化剂对CO的活性曲线呈波浪形,对NO的活性曲线为增函数;当Rh含量超过0.015%时,增加Rh的量对CO和NO的转化率几乎无影响.在无助的情况下,用Al2O3为载体制作的Pt-Rh-Pd/Al2O3催化剂,其Pt、Rh、Pd之间的最佳比例为15320.Rh含量的增加有利于氧化性气体的吸附,不利于还原性气体的吸附.
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| 关 键 词： | 铑含量 催化活性 吸附性能 |
Effects of the Rh content in the Pt-Rh-Pd/Al2O3 on the oxidation and reduction activities of the catalysts |
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| KUANG Cheng-xiu,LI Feng-yi,LIU Kuang-qiang.Effects of the Rh content in the Pt-Rh-Pd/Al2O3 on the oxidation and reduction activities of the catalysts[J].Jiangxi Chemical Industry,2005(3):86-88. |
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| Authors: | KUANG Cheng-xiu LI Feng-yi LIU Kuang-qiang |
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| Abstract: | Catalytical activities and absorbing capacities of the catalysts owned the different content of Rh were studied with flow-system micro reactor.The results show that the active curves of CO and NO seem like wave and increasing function respectively when the amounts of Rh in the range of 0%-0.015%,but,when the amounts of Rh exceed 0.015%,there are no effects on the conversion of CO and NO,that in the presence of no assistance the best rate of Pt,Ph,Pd in the Pt-Rh-Pd/Al_2O_3 catalyst is 15: 3:20,that the increases of the Rh content in the Pt-Rh-Pd/Al_2O_3 were superior to absorb oxidation gases and not as good as reduction gases. |
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| Keywords: | the Rh content Catalytical activities absorbing capacities |
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