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首页> 外文期刊>ACS applied materials & interfaces >Synthesis of Mesoporous gamma-Alumina -Supported Co-Based Catalysts and Their Catalytic Performance for Chemoselective Reduction of Nitroarenes
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Synthesis of Mesoporous gamma-Alumina -Supported Co-Based Catalysts and Their Catalytic Performance for Chemoselective Reduction of Nitroarenes

机译：吲哚乙酰氧化铝的合成对基础催化剂的化学催化剂及其催化性能及硝基酮化学选择

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摘要

Mesoporous gamma-alumina (gamma-MA)-supported cobalt oxides (Co3C)(4)) with" large surface areas and narrow pore size distributions were first prepared through-one-pot hydrolysis of metal nitrates. The obtained Co(3)Q(4)/y-MA materials were impregnated with a waterffethanol solution of t,10-phenanthroline, followed by treatment at 700 degrees C in N-2 atmosphere, generating Co NC/y-MA. catalysts containing N-cloped graphitic carbon (NC). The CoffNC/y-MA catalysts maintained the mesoporous structure of,y-MA,. and Co(3)o(4) was reduced- to metallic Co nanoparticles highly dispersed in the-y-MA frameworks. Metallic 'Co species had a strong interaction with NC in the matrices, avoiding the surface Oxidation of Co particles. The Co-NC/gamma-MA catalysts exhibited superior catalytic activity and quantitatively reduCed a variety of functionalized nitroarenes to the corresponding arylamines with hydrazine hydrate in ethanol at near room temperature, affording yields of 99%. The recycling test of 2-chloronitrobenzene as a model reaction showed no detectable change in catalyst performance after 10 cycle reactions.
机译：首先用“大表面积和大表面积和窄孔径分布的甲基氧化铝（Gamma-mA） - 氧化钴（CO 3C）（4））通过一罐硝酸盐水解制备。所得CO（3）Q （4）/ y-mA材料用丙芬乙醇溶液的T，10-菲咯啉溶液，然后在N-2气氛中以700℃处理，产生CO NC / Y-MA。含有N-Cloped石墨碳的催化剂（ NC）。CoffNC / Y-MA催化剂保持Y-MA的介孔结构。和CO（3）O（4）降低至金属Co纳米粒子，其高度分散在-Y-MA框架中。金属'CO物种在基质中具有强烈的与NC相互作用，避免了CO颗粒的表面氧化。CO-NC /γ-MA催化剂表现出优异的催化活性，并定量减少了各种官能化的碳胺与乙醇中的肼水合物的相应芳基胺。在室温附近，提供＆gt的收益率为99％。回收T作为模型反应的2-氯硝硝化苯的EST显示出10个循环反应后催化剂性能的可检测变化。

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  • 来源
    《ACS applied materials & interfaces》 |2018年第6期|共16页
  • 作者

    Huang Haigen; Tang Mingwu; Wang Xueguang; Zhang Man; Guo Shuoqiang; Zou Xiujing; Lu Xionggang;

  • 作者单位

    Shanghai Univ Sch Mat Sci &

    Engn State Key Lab Adv Special Steel Shanghai 200072 Peoples R China;

    Xiamen Univ Dept Chem Coll Chem &

    Chem Engn Xiamen 361005 Peoples R China;

    Shanghai Univ Sch Mat Sci &

    Engn State Key Lab Adv Special Steel Shanghai 200072 Peoples R China;

    Shanghai Univ Sch Mat Sci &

    Engn State Key Lab Adv Special Steel Shanghai 200072 Peoples R China;

    Shanghai Univ Sch Mat Sci &

    Engn State Key Lab Adv Special Steel Shanghai 200072 Peoples R China;

    Shanghai Univ Sch Mat Sci &

    Engn State Key Lab Adv Special Steel Shanghai 200072 Peoples R China;

    Shanghai Univ Sch Mat Sci &

    Engn State Key Lab Adv Special Steel Shanghai 200072 Peoples R China;

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

    mesoporous alumina; cobalt; nitroarene; aromatic amine; reduction;

    机译：中孔氧化铝;钴;硝基甲烯;芳香胺;减少;

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