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Improved NO reduction by using metal-organic framework derived MnOx-ZnO

机译:通过使用金属有机骨架衍生的MNOX-ZnO没有减少

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摘要

Derivatives based on metal frameworks (MOFs) are attracting more and more attention in various research fields. MOF-based derivativesx% MnOx-ZnO are easily synthesized by the thermal decomposition of Mn/MOF-5 precursors. Multiple technological characterizations have been conducted to ascertain the strengthening interaction between Mn species (Mn(2+)or Mn3+) and Zn2+(e.g., XRD, FTIR, TG, XPS, SEM, H-2-TPR and Py-FTIR). The 5% MnOx-ZnO exhibits the highest NO conversion of 75.5% under C3H6-SCR.In situFTIR and NO-TPD analysis showed that monodentate nitrates, bidentate nitrates, bridged bidentate nitrates, nitrosyl groups and C(x)H(y)O(z)species were formed on the surface, and further hydrocarbonates or carbonates were formed as intermediates, directly generating N-2, CO(2)and H2O.
机译:基于金属框架(MOF)的衍生品在各种研究领域吸引了越来越多的关注。 基于MOF的衍生物X%MNOX-ZnO通过Mn / Mof-5前体的热分解容易地合成。 已经进行了多种技术特征以确定Mn种类(Mn(2+)或Mn3 +)和Zn2 +(例如,XRD,FTIR,TG,XPS,SEM,H-2-TPR和PY-FTIR之间的强化相互作用。 5%Mnox-ZnO表现出C3H6-SCR.IN的最高转化率为75.5%,NO-TPD分析显示单常见的硝酸盐,二齿硝酸盐,桥接双齿硝酸盐,亚硝基基和C(y)o (Z)在表面上形成物种,并将其他碳氢酸酯或碳酸酯形成为中间体,直接产生N-2,CO(2)和H2O。

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  • 来源
    《RSC Advances》 |2020年第53期|共8页
  • 作者单位

    Inner Mongolia Univ Sch Ecol &

    Environm Hohhot Peoples R China;

    Inner Mongolia Univ Sch Ecol &

    Environm Hohhot Peoples R China;

    Inner Mongolia Univ Sch Ecol &

    Environm Hohhot Peoples R China;

    Inner Mongolia Univ Sch Ecol &

    Environm Hohhot Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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