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首页> 外文期刊>RSC Advances >Fabrication of mesoporous POMs/SiO2 nanofibers through electrospinning for oxidative conversion of biomass by H2O2 and oxygen
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Fabrication of mesoporous POMs/SiO2 nanofibers through electrospinning for oxidative conversion of biomass by H2O2 and oxygen

机译：通过静电纺丝制备介孔POMS / SiO2纳米纤维通过H2O2和氧气氧化生物质的氧化转化

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摘要

Polyoxometalate H5PMo10V2O40/SiO2 (HPMoV/SiO2) nanofibers with a mesoporous structure were fabricated through combined electrospinning and surfactant-directing pore formation technique. These heterogeneous nanofibers were characterized by a wide variety of techniques to show mesoporous structure, high surface area, excellent stability, nanofiber morphology, highly efficient activity and selectivity towards the oxidation of starch and 5-hydroxymethylfurfural (5-HMF) either by H2O2 or by oxygen. POM/SiO2 nanofibers were suitable for oxidation of starch by H2O2 and oxidation of 5-HMF by O-2 with high efficiency of 0.58 mol per 100 g carboxyl content and 89.2% yield of DFF; these results are comparable with those obtained using homogeneous H5PMo10V2O40 and HPMoV/SiO2 without nanofiber morphology. Furthermore, HPMoV/SiO2 nanofibers could be easily recycled and reused at least ten times with no significant loss of catalytic activity due to their nanofiber morphology.
机译：通过组合静电纺丝和表面活性剂引导孔形成技术制造具有中孔结构的聚毒素H5PMO10V2O40 / SiO 2（HPMOV / SiO 2）纳米纤维。 这些异质纳米纤维的特征在于，各种技术表征，以显示介孔结构，高表面积，优异的稳定性，纳米纤维形态，高效活性和对淀粉和5-羟甲基糠醛（5-HMF）的选择性，也可以通过H 2 O 2或通过 氧。 POM / SiO2纳米纤维适用于通过H 2 O 2氧化淀粉，并通过O-2氧化5-HMF，高效率为0.58mol / 100g羧基含量，89.2％的DFF产率; 这些结果与使用均相H5PMO10V2O40和HPMOV / SiO2获得的那些相当，没有纳米纤维形态。 此外，HPMOV / SiO 2纳米纤维可以容易地再循环并重复使用至少十次，由于其纳米纤维形态而没有显着的催化活性损失。

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  • 来源
    《RSC Advances》 |2018年第7期|共13页
  • 作者

    Yan Siqi; Li Yue; Li Peili; Jia Ting; Wang Shengtian; Wang Xiaohong;

  • 作者单位

    Northeast Normal Univ Fac Chem Minist Educ Key Lab Polyoxometalate Sci Changchun 130024 Jilin Peoples R China;

    Northeast Normal Univ Fac Chem Minist Educ Key Lab Polyoxometalate Sci Changchun 130024 Jilin Peoples R China;

    Northeast Normal Univ Fac Chem Minist Educ Key Lab Polyoxometalate Sci Changchun 130024 Jilin Peoples R China;

    Northeast Normal Univ Fac Chem Minist Educ Key Lab Polyoxometalate Sci Changchun 130024 Jilin Peoples R China;

    Northeast Normal Univ Fac Chem Minist Educ Key Lab Polyoxometalate Sci Changchun 130024 Jilin Peoples R China;

    Northeast Normal Univ Fac Chem Minist Educ Key Lab Polyoxometalate Sci Changchun 130024 Jilin Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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