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首页> 外文期刊>ACS applied materials & interfaces >Rational Design of Multisite Trielement Ru–Ni–Fe Alloy Nanocatalysts with Efficient and Durable Catalytic Hydrogenation Performances
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Rational Design of Multisite Trielement Ru–Ni–Fe Alloy Nanocatalysts with Efficient and Durable Catalytic Hydrogenation Performances

机译：具有高效耐用催化氢化性能的多立体三元ru-Ni-Fe合金纳米催化剂的理性设计

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摘要

The co-decomposition of non-noble metals into Ru nanoparticles (NPs) would provide multiple active centers as well as synergistically alter the reaction pathway, enhancing the catalytic hydrogenation performance. Herein, a facile route for synthesizing trielement Ru–Ni–Fe alloy NPs was proposed. The catalytic hydrogenation performance of NPs was measured using p -nitrophenol as a model. The synergistic effect of these three elements (Ru, Ni, and Fe) and synergistic catalysis of multiple crystal faces greatly improved the catalytic hydrogenation performance of Ru_(44)Ni_(28)Fe_(28) alloy NPs. Ru with more vacant orbitals showed a strong coordination with BH_(4)~(–) for the generation of active H species. Ni played a major role in transporting electrons and active H species, increasing the accessibility of catalytically active sites. Fe could cooperate with BH_(4)~(–) to produce active H species and promote electrons transfer. Ru_(44)Ni_(28)Fe_(28) alloy NPs could be reused and applied for the fabrication of films at the oil–water (ethyl acetate–water) interface. The densely packed Ru_(44)Ni_(28)Fe_(28) NP films were good Raman substrates for monitoring the complete conversion of 4-nitrothiophenol into 4-aminothiophenol. The rational design of Ru_(44)Ni_(28)Fe_(28) will broaden the application range of Ru-based catalysts and provide new insights into the rational design of other multisite alloy catalysts.
机译：非贵金属对Ru纳米颗粒（NPS）的共同分解将提供多个活性中心，以及协同改变反应途径，增强催化氢化性能。在此，提出了一种用于合成三元体Ru-Ni-Fe合金NPS的容易途径。使用 p-硝基苯酚作为模型测量NPS的催化氢化性能。这三种元素（Ru，Ni和Fe）的协同效应和多晶面的协同催化催化性催化氢化性能大大提高了ru_（44）Ni_（28）Fe_（28）合金NPS的催化氢化性能。 Ru具有更多空置轨道表现出对BH_（4）〜（ - ）的强烈协调，用于产生活性H种。 NI在运输电子和活性H种类中发挥了重要作用，增加了催化活性位点的可达性。 Fe可以与BH_（4）〜（ - ）合作，产生活性H种并促进电子转移。 Ru_（44）Ni_（28）Fe_（28）合金NPS可以重复使用并施加用于在油 - 水（乙酸乙酯 - 水）界面处的薄膜的制造。密集填充的Ru_（44）Ni_（28）Fe_（28）NP膜是良好的拉曼底物，用于监测4-硝基苯酚的完全转化为4-氨噻吩。 RU_（44）NI_（28）FE_（28）的合理设计将拓宽ru基催化剂的应用范围，并为其他多路合金催化剂的合理设计提供新的见解。

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  • 来源
    《ACS applied materials & interfaces》 |2019年第44期|共11页
  • 作者

    Yuan Zhao; Wei Ke; Juanjuan Shao; Fangjie Zheng; Han Liu; Lixia Shi;

  • 作者单位

    Key Laboratory of Synthetic and Biological Colloids Ministry of Education School of Chemical and Material Engineering Jiangnan University;

    Key Laboratory of Synthetic and Biological Colloids Ministry of Education School of Chemical and Material Engineering Jiangnan University;

    College of Science and Technology Hebei Agricultural University;

    Key Laboratory of Synthetic and Biological Colloids Ministry of Education School of Chemical and Material Engineering Jiangnan University;

    Key Laboratory of Synthetic and Biological Colloids Ministry of Education School of Chemical and Material Engineering Jiangnan University;

    Key Laboratory of Synthetic and Biological Colloids Ministry of Education School of Chemical and Material Engineering Jiangnan University;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学工业;
  • 关键词

    trielement alloy nanocatalyst; ruthenium; iron; lt; igt; plt; /igt; -nitrocompound; Raman films;

    机译：三元化合金纳米催化剂;钌;铁;＆lt;i＆gt;p＆lt;/ i＆gt;- 硝基复杂;拉曼电影;

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