一步合成法制备双金属有机骨架材料及其低温选择性脱硝催化性能
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摘要
采用一步合成法成功的制备具有双金属位点的Mn-Cu-BTC并将其应用为低温选择性催化还原(SCR)反应催化剂。通过热重分析仪(TG)、场发射扫描电子显微镜(FE-SEM)、X射线衍射仪(XRD)、N_2物理吸附仪(BET)对所制备的催化剂的热稳定窗口、形貌、物相及微粒织构特性进行表征。并在固定床实验台上测试对催化剂的SCR脱硝性能进行测试。结果表明:结果表明通过调节Mn离子的负载量可以有效的调节催化剂样品的孔径尺寸、降低SCR反应温度、提升催化效率。
Bimetal metal organic frameworks of Mn-Cu-BTC was successfully synthesized through one-step synthesized method and used as low-temperature selective catalytic reaction catalysts. The catalysts samples were characterized by using thermal gravimetric analyzer( TG),field emission scanning electron microscopy( FE-SEM),X-ray diffraction( XRD),Nitrogen physical adsorption/desorption( BET) on spects of thermal stability,morphology,phase composition and textural properties. The NH_3-SCR activity was tested on the fix-bed reactor. The experimental results show that by controlling the amount of Mn ions,the average pore size can be finely adjusted,further decreased the SCR reaction temperature and increased the NO conversion efficiency.
Bimetal metal organic frameworks of Mn-Cu-BTC was successfully synthesized through one-step synthesized method and used as low-temperature selective catalytic reaction catalysts. The catalysts samples were characterized by using thermal gravimetric analyzer( TG),field emission scanning electron microscopy( FE-SEM),X-ray diffraction( XRD),Nitrogen physical adsorption/desorption( BET) on spects of thermal stability,morphology,phase composition and textural properties. The NH_3-SCR activity was tested on the fix-bed reactor. The experimental results show that by controlling the amount of Mn ions,the average pore size can be finely adjusted,further decreased the SCR reaction temperature and increased the NO conversion efficiency.
引文
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