| 尿素水解法制备降解地表臭氧的Pd-Mnox/Al2O3催化剂 |
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| 引用本文： | 潘浩,周丽娜,朱艺,彭娜,龚茂初,陈耀强.尿素水解法制备降解地表臭氧的Pd-Mnox/Al2O3催化剂[J].催化学报,2011,32(6):1040-1045. |
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| 作者姓名： | 潘浩 周丽娜 朱艺 彭娜 龚茂初 陈耀强 |
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| 作者单位： | 四川大学绿色化学与技术教育部重点实验室; |
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| 基金项目： | 国家自然科学基金(20773090,20803049)~~ |
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| 摘 要： | 采用尿素水解法制备了Pd-MnOx/Al2O3催化剂,运用低温N2吸附-脱附和X射线衍射对其进行了表征,并评价了其催化降解地表O3反应活性,考察了Pd,MnOx焙烧时间和MnOx含量刘催化剂活性的影响.结果表明,在高空速(660000h-1)、高相对湿度(85%～90%)条件下,MnOx焙烧时间为6h且.MnOx含量为...
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| 关 键 词： | 钯 锰氧化物 尿素水解法 相对湿度 地表臭氧 催化降解 完全降解 |
Ground-Level Ozone Decomposition over Pd-MnO_x/Al_2O_3 Catalyst Prepared by Urea Hydrolysis |
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| PAN Hao,ZHOU Lina,ZHU Yi,PENG Na,GONG Maochu,CHEN Yaoqiang.Ground-Level Ozone Decomposition over Pd-MnO_x/Al_2O_3 Catalyst Prepared by Urea Hydrolysis[J].Chinese Journal of Catalysis,2011,32(6):1040-1045. |
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| Authors: | PAN Hao ZHOU Lina ZHU Yi PENG Na GONG Maochu CHEN Yaoqiang |
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| Institution: | PAN Hao,ZHOU Lina,ZHU Yi,PENG Na,GONG Maochu,CHEN Yaoqiang* Key Laboratory of Green Chemistry and Technology of Ministry of Education,Sichuan University,Chengdu 610064,Sichuan,China |
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| Abstract: | The Pd-MnOx/Al2O3 catalyst has been prepared by the urea hydrolysis method and characterized by low temperature nitrogen adsorption-desorption and X-ray diffraction.Its catalytic activity for decomposing ground-level ozone has been studied.The catalyst showed a high activity at low temperature and high relative humidity.At gas hourly space velocity (GHSV) of 660000 h?1 and relative humidity of 85%-90%,the ozone conversion over the catalyst reached 91.7% at 20 °C and the temperature for complete decomposition of ozone was only 24 °C.Furthermore,the prepared catalyst can completely decompose ground-level ozone when it is coated on the wave shaped heat patches of automobile water tanks. |
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| Keywords: | palladium manganese oxide urea hydrolysis method relative humidity ground-level ozone catalytic decomposition completely decompose |
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