The reaction of NO + C3H6 + O2 over the mesoporous SBA-15 supported transition metal catalysts
The reaction of NO + C3H6 + O2 over the mesoporous SBA-15 supported transition metal catalysts
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NO C3H6 O2在介孔SBA-15负载过渡金属催化剂上的反应
DOI：
10.1016/j.cattod.2011.04.014
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发表时间：
2011-10
期刊：
影响因子：
5.3
通讯作者：
Runduo Zhang
中科院分区：
文献类型：
--
作者：
Xin Liang;Zhigang Lei;Yanli Zhao;Jun Xue;Dongjun Shi;Biaohua Chen;Runduo Zhang
采用初湿浸渍法制备了单功能M/SBA-15 （M=Cu、Fe、Cr、Al）和双功能M ' /SBA-15 （M ' =Cu - Al、Fe - Al、Cr - Al）催化剂，并通过n2吸附、XRD、TEM、H2-TPR、Al27-NMR、XPS和C3H6+NO+ o2反应活性测试对催化剂进行了表征。SBA-15的有序介孔结构在浸渍各种金属组分后仍保持良好。催化剂的脱氧活性表现为Cu - Al/SBA-15>Cu/SBA-15、Fe/SBA-15>Cr - Al/SBA-15>Cr/SBA-15 ~ Fe - Al/SBA-15、Al/SBA-15>SBA-15。铜和氧化铝之间的协同效应表明，在低至350℃的温度下，在3000ppm NO、3000ppmC3H6、1% o2和60000 h -1的GHSV气氛下，Cu-Al /SBA-15的NO转化率约为80%。SCR性能与所测试催化剂的氧化还原性能、负载金属的化学性质以及活性金属的表面密度密切相关。
A series of mono-functional M/SBA-15 (M=Cu, Fe, Cr, and Al) and bifunctional M′/SBA-15 (M′=Cu–Al, Fe–Al, and Cr–Al) catalysts was prepared via an incipient wetness impregnation, and further characterized by N2adsorption, XRD, TEM, H2-TPR, Al27-NMR, and XPS as well as activity test for C3H6+NO+O2reaction. Ordered mesoporous structure of SBA-15 was well maintained even after impregnating the various metallic components. The deNOxactivities of investigated catalysts follow a trend of Cu–Al/SBA-15>Cu/SBA-15, Fe/SBA-15>Cr–Al/SBA-15>Cr/SBA-15≫Fe–Al/SBA-15, Al/SBA-15>SBA-15. Synergistic effect between copper and alumina was achieved showing a satisfactory NO conversion of approximately 80% over Cu–Al/SBA-15 at temperature as low as 350°C under an atmosphere of 3000ppm NO, 3000ppmC3H6, 1% O2and GHSV of 60,000h−1. The SCR performance was found to be strongly correlated to the redox properties of tested catalysts, essentially chemical nature of supported metals, and surface density of active metallic species.
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影响因子：
5.5
作者：
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通讯作者：
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影响因子：
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作者：
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影响因子：
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作者：
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