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首页> 外文期刊>ChemPlusChem >Hollow Nano‐Mesosilica Spheres Containing Rhodium Nanoparticles Supported on Nitrogen‐Doped Carbon: An Efficient Catalyst for the Reduction of Nitroarenes under Mild Conditions
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Hollow Nano‐Mesosilica Spheres Containing Rhodium Nanoparticles Supported on Nitrogen‐Doped Carbon: An Efficient Catalyst for the Reduction of Nitroarenes under Mild Conditions

机译：含有铑纳米颗粒的空心纳米梅西利亚球体负载在氮气掺杂的碳中：在温和条件下减少硝基酮的有效催化剂

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摘要

Abstract Atom efficiency, low temperature, low pressure, and a nontoxic hydrogen source as a reducing agent are ideal reaction conditions for the reduction of nitroarenes. In this work, an efficient catalyst comprising hollow nano‐mesosilica spheres loaded with Rh nanoparticles supported on nitrogen‐doped carbon was developed. Rh nanoparticles were stabilized and uniformly dispersed by nitrogen atoms, and the inner N‐doped carbon shell was used to adsorb reaction substrates and improve catalytic activity. The catalyst showed remarkable activity (maximum yield at 1.5?h) and selectivity (100?%) for the reduction of nitrobenzene at lower temperature (80?°C), atmospheric pressure (1?atm), and without base under aqueous conditions. Moreover, the hydrothermal stability of this nanocatalyst was better than other catalysts in boiling water at 100?°C for 48?h and effectively prevented the aggregation and leaching of Rh NPs during the reaction.
机译：摘要原子效率，低温，低压和无毒氢源作为还原剂是硝基拉酮还原的理想反应条件。 在这项工作中，开发了包含载于负载在氮掺杂碳上的RH纳米颗粒的中空纳米硅藻球的有效催化剂。 通过氮原子稳定rH纳米颗粒并均匀地分散，内部N掺杂的碳壳吸附反应底物并改善催化活性。 催化剂显示出显着的活性（1.5℃的最大屈服）和选择性（100μl％），用于在较低温度（80℃），大气压（1〜ATM）下，无碱在水性条件下减少硝基苯。 此外，该纳米催化剂的水热稳定性优于沸水中的其他催化剂在100℃的沸点48Ω·h，并有效地防止了反应过程中Rh NP的聚集和浸出。

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  • 来源
    《ChemPlusChem》 |2020年第1期|共7页
  • 作者

    Wang Shihan; Dai Jinyu; Shi Zhiqiang; Xiong Zeshan; Zhang Zongtao; Qiu Shilun; Wang Runwei;

  • 作者单位

    State Key Laboratory of Inorganic Synthesis and Preparative ChemistryJilin UniversityChangchun;

    State Key Laboratory of Inorganic Synthesis and Preparative ChemistryJilin UniversityChangchun;

    State Key Laboratory of Inorganic Synthesis and Preparative ChemistryJilin UniversityChangchun;

    State Key Laboratory of Inorganic Synthesis and Preparative ChemistryJilin UniversityChangchun;

    State Key Laboratory of Inorganic Synthesis and Preparative ChemistryJilin UniversityChangchun;

    State Key Laboratory of Inorganic Synthesis and Preparative ChemistryJilin UniversityChangchun;

    State Key Laboratory of Inorganic Synthesis and Preparative ChemistryJilin UniversityChangchun;

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

    heterogeneous catalysis; hydrogenation; nanostructures; silica; rhodium;

    机译：异质催化;氢化;纳米结构;二氧化硅;铑;

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