| 负载Cu氧化铝纳米管合成及在NO+CH4反应中催化性能研究 |
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| 引用本文： | 白玉平,闫晓亮,陈树伟,李瑞丰.负载Cu氧化铝纳米管合成及在NO+CH4反应中催化性能研究[J].燃料化学学报,2011,39(11):860-865. |
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| 作者姓名： | 白玉平 闫晓亮 陈树伟 李瑞丰 |
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| 作者单位： | 1.Institute of Superfine Chemical Industry, Key Laboratory of Coal Science and Technology MOE, ;
Taiyuan University of Technology, Taiyuan 030024, China;
2.College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China |
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| 基金项目： | 国家自然科学基金(20876102,50772070); 高等学校博士学科点专项科研基金(200801120006) |
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| 摘 要： | 采用过氧化氢调节反应条件,在水热体系中合成了新型的勃姆石纳米管,经520℃焙烧2h后,晶型由AlOOH转化为γ-Al2O3;采用XRD、氮吸附、TEM等对合成的纳米管进行表征.结果表明,合成的γ-Al2O3纳米管长约300nm,外径20nm,比表面积达到230m2/g以上.以此为载体,采用等体积浸渍法用Cu(NO3)2...
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| 关 键 词： | 氧化铝 纳米管 铜催化剂 选择催化还原NO |
| 收稿时间： | 2010-12-03 |
Selective catalytic reduction of NO with methane over Cu-alumina nanotubes |
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| BAI Yu-ping,YAN Xiao-liang,CHEN Shu-wei,LI Rui-feng.Selective catalytic reduction of NO with methane over Cu-alumina nanotubes[J].Journal of Fuel Chemistry and Technology,2011,39(11):860-865. |
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| Authors: | BAI Yu-ping YAN Xiao-liang CHEN Shu-wei LI Rui-feng |
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| Institution: | BAI Yu-ping1,YAN Xiao-liang1,CHEN Shu-wei2,LI Rui-feng1,2 (1.Institute of Superfine Chemical Industry,Key Laboratory of Coal Science and Technology MOE,Taiyuan University of Technology,Taiyuan 030024,China,2.College of Chemistry and Chemical Engineering,China) |
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| Abstract: | A new type of tubular material, boehmite nanotube, was prepared by adjusting reaction condition with H2O2 in hydrothermal synthesis system. The nanotubes were characterized by XRD, nitrogen absorption and TEM etc. XRD results showed that the AlOOH nanotubes converted to γ-alumina nanotubes upon calcination at 520℃ for 2h. The nanotubes were about 300nm in length with outer diameter of 20nm, as recorded on TEM. BET surface area of the γ-Al2O3 nanotubes was higher than 230m2/g. γ-Al2O3 nanotubes were used as catalyst carriers by impregnating Cu(NO3)2 solution with different Cu content for the titled reaction. The influences of the amount of Cu, different carriers, O2 concentration and SO2 on the selective catalytic reduction of NO were studied. The results indicated that the γ-Al2O3 nanotubes loaded with 7% Cu possessed the highest activity which could reach 90% at 600℃; Further, the catalysts with nanotubes as carrier showed more active catalytic performance at low temperature (bellow 500℃) than those non-nano scale carrier fabricated based on alumina. Oxygen at low concentration (less than 0.25%(φ)) showed little effect on the conversion of NO while it improved the methane conversion when the concentration of O2 was higher than 0.25%; the Cu-nanotubes catalyst also showed sulfur-resistant property. |
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| Keywords: | aluminum oxide nanotubes copper containing catalysts NO SCR |
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