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首页> 外文期刊>Catalysis science & technology >A highly efficient LaOCl supported Fe-Fe3C-based catalyst for hydrogenation of nitroarenes fabricated by coordination-assisted pyrolysis
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A highly efficient LaOCl supported Fe-Fe3C-based catalyst for hydrogenation of nitroarenes fabricated by coordination-assisted pyrolysis

机译：一种高效LaOCl Fe-Fe3C-based支持nitroarenes加氢的催化剂捏造的coordination-assisted热解

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摘要

Bi-metal-organic framework (bi-MOF) derived carbon-based catalysts have exhibited considerable potential for hydrogenation reactions; however, designing suitable bi-MOFs to fabricate highly efficient catalysts is still a great challenge. Herein, an efficient LaOCl supported Fe-Fe3C-based carbon-nitrogen catalyst (Fe-Fe3C-LaOCl/CN-hmta) was first prepared by bi-MOF (La-salen(Fe@HMTA))-templated pyrolysis. La-salen(Fe@HMTA) was synthesized via the coordination-assisted method, e.g., it is prepared by the coordination of N from the rich free imine (-CH=N-) groups located on the La-salen complex to the Fe3+ ions from Fe@HMTA. Catalytic experiments reveal that Fe-Fe3C-LaOCl/CN-hmta as a hydrogenation catalyst exhibits excellent performance for hydrogenation of nitroarenes in comparison with catalysts derived from Fe-urea MOFs (Fe-Fe3C-LaOCl/CN-urea) and Fe(NO3)(3)center dot 9H(2)O derived catalysts (Fe-Fe3C-LaOCl/CN). On the basis of the nature of Fe-Fe3C-LaOCl/CN-hmta and the reaction results, it is concluded that the unique catalytic efficiency of Fe-Fe3C-LaOCl/CN-hmta depends significantly on the synergistic effect of Fe and Fe3C, large specific surface area and abundant structural defects. This piece of research provides a new approach for preparing highly efficient and stable Fe-Fe3C-based catalysts for hydrogenation of nitroarenes via the coordination-assisted pyrolysis (CAP) method.
机译：Bi-metal-organic框架(bi-MOF)碳基催化剂表现出相当大的潜力加氢反应;制造高效催化剂仍然是一个巨大的挑战。支持Fe-Fe3C-based碳氮催化剂(Fe-Fe3C-LaOCl / CN-hmta)最初由bi-MOF (La-salen (Fe@HMTA)模板化热解。La-salen (Fe@HMTA)合成了通过coordination-assisted方法,例如,它是由N从富人的协调免费的亚胺(ch = N -)组位于从Fe@HMTA La-salen复杂Fe3 +离子。催化实验表明,Fe-Fe3C-LaOCl / CN-hmta作为加氢催化剂展品良好的加氢性能相比nitroarenes的催化剂来自Fe-urea财政部(Fe-Fe3C-LaOCl / CN-urea)和Fe(3号)(3)中心点9 h (2) O派生的催化剂(Fe-Fe3C-LaOCl / CN)。Fe-Fe3C-LaOCl / CN-hmta和反应的结果,结果表明,独特的催化Fe-Fe3C-LaOCl / CN-hmta取决于效率显著的协同效应,铁和Fe3C、大的比表面积和丰富结构性缺陷。准备高度提供了一种新的方法高效和稳定Fe-Fe3C-based催化剂加氢nitroarenes通过coordination-assisted热解(CAP)的方法。

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