| 堇青石负载Mn-Zn-O复合金属氧化物的甲苯催化燃烧性能 |
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| 引用本文： | 黄琼,马文娇,张志远,陈英文,祝社民,沈树宝.堇青石负载Mn-Zn-O复合金属氧化物的甲苯催化燃烧性能[J].南京工业大学学报(自然科学版),2011,33(4):7-11. |
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| 作者姓名： | 黄琼 马文娇 张志远 陈英文 祝社民 沈树宝 |
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| 作者单位： | 1. 南京工业大学生物与制药工程学院,江苏南京,210009
2. 南京工业大学材料科学与工程学院,江苏南京,210009 |
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| 基金项目： | 国家高技术研究发展计划(863计划)资助项目，国家自然科学基金资助项目，江苏省普通高校研究生科研创新计划资助项目，江苏省环保厅资助项目，江苏省科技厅资助项目 |
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| 摘 要： | 以堇青石蜂窝陶瓷为载体、Mn(NO3)2和Zn(NO3)2为原料,采用过量浸渍法制备负载型Mn-Zn-O复合氧化物催化剂,考察Mn与Zn摩尔比、负载量及焙烧温度对甲苯催化燃烧性能的影响,并采用表面积分析仪(BET)、扫描电镜(SEM)和X线衍射仪(XRD)对催化剂进行表征。结果表明:n(Mn)/n(Zn)为2,负载量为10%,经450℃焙烧的催化剂表现出最佳的甲苯催化燃烧性能,在300℃及体积空速为10 000 h-1条件下,催化燃烧质量浓度为3.8μg/m3的甲苯,催化转化率可达91.4%。
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| 关 键 词： | Mn-Zn-O复合氧化物 甲苯催化燃烧 堇青石 |
Catalytic combustion of toluene over novel Mn-Zn-O complex oxides catalysts supported on cordierite |
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| HUANG Qiong,MA Wenjiao,ZHANG Zhiyuan,CHEN Yingwen,ZHU Shemin,SHEN Shubao.Catalytic combustion of toluene over novel Mn-Zn-O complex oxides catalysts supported on cordierite[J].Journal of Nanjing University of Technology,2011,33(4):7-11. |
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| Authors: | HUANG Qiong MA Wenjiao ZHANG Zhiyuan CHEN Yingwen ZHU Shemin SHEN Shubao |
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| Institution: | 1(1.College of Biotechnology and Pharmaceutical Engineering,Nanjing University of Technology,Nanjing 210009,China; 2.College of Materials Science and Engineering,Nanjing University of Technology,Nanjing 210009,China) |
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| Abstract: | A series of Mn-Zn-O complex oxides catalysts supported on cordierite honeycomb were prepared by an impregnation method with using Mn(NO3)2 and Zn(NO3)2.The effects of the molar ratio on Mn and Zn,loading amount of Mn-Zn oxides,and calcinations temperature for the complete oxidation of toluene were investigated.The catalysts were characterized by specific surface area,scanning electron microscope(SEM),and X-ray diffraction techniques(XRD).Results showed that the Mn-Zn-O complex oxides catalysts with Mn and Zn molar ratio of 2,10% loading and calcining at 450 ℃ exhibited high catalytic performance.With the concentration of toluene of 3.8 μg/m3 and the gaseous hourly space velocity of 10 000 h-1,the conversion of toluene was 91.4% at the reaction temperature of 300 ℃. |
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| Keywords: | Mn-Zn-O complex oxides toluene catalytic combustion cordierite |
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