| TiO2纳米管阵列负载MnOx复合催化剂的脱硝性能 |
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| 引用本文： | 赵崇斌,杨杭生,周环,邱发敏,张孝彬.TiO2纳米管阵列负载MnOx复合催化剂的脱硝性能[J].催化学报,2011,32(4):666-671. |
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| 作者姓名： | 赵崇斌 杨杭生 周环 邱发敏 张孝彬 |
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| 作者单位： | 浙江大学材料科学与工程学系硅材料国家重点实验室; |
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| 基金项目： | 浙江省自然科学基金重点项目(Z4080070); 浙江省科技厅科技计划(2008C21057,2009C34003); 中国医疗废物环境可持续管理项目(C/V/S/10/251); 中央高校基本科研业务费专项资金(2010QNA4005)~~ |
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| 摘 要： | 研究了TiO2纳米管阵列负载的MnOx复合物选择性催化还原NOx的性能.结果显示,在150～250℃下该催化剂脱除NOx的效率达90%以上(200℃下为99%以上),表现出优异的中低温脱硝性能.当反应温度更高时,有可能使反应进入努森扩散控制状态,从而在一定程度上抑制了催化反应的进行.
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| 关 键 词： | 锰氧化物 二氧化钛纳米管阵列 氮氧化物 选择性催化还原 |
Catalytic Reduction of NO_x over MnO_x Coated TiO_2 Nanotube Arrays |
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| ZHAO Chongbin,YANG Hangsheng,ZHOU Huan,QIU Famin,ZHANG Xiaobin.Catalytic Reduction of NO_x over MnO_x Coated TiO_2 Nanotube Arrays[J].Chinese Journal of Catalysis,2011,32(4):666-671. |
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| Authors: | ZHAO Chongbin YANG Hangsheng ZHOU Huan QIU Famin ZHANG Xiaobin |
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| Institution: | ZHAO Chongbin,YANG Hangsheng,ZHOU Huan,QIU Famin,ZHANG Xiaobin State Key Laboratory of Silicon Materials,Department of Materials Science and Engineering,Zhejiang University,Hangzhou 310027,Zhejiang,China |
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| Abstract: | Catalytic reduction of NOx with NH3 was studied over MnOx coated TiO2 nanotube arrays prepared by anodic oxidation.When the MnOx was deposited inside the TiO2 nanotubes,the good NOx removal efficiency was achieved at relatively low reaction temperature,such that the NOx removal efficiency of over 90% was always obtained at 150-250 °C,and it reached 99.9% at 200 °C.However,when the reaction temperature was higher than 250 °C,a suppression of NOx removal was observed.This is probably because the diffusion of NO molecules into TiO2 nanotubes was controlled by Knudson diffusion. |
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| Keywords: | manganese oxide titanium dioxide nanotube array nitrogen oxide selective catalytic reduction |
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