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首页> 外文期刊>ACS Sustainable Chemistry & Engineering >Hydrogenation of Biobased Aldehydes to Monoalcohols Using Bimetallic Catalysts
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Hydrogenation of Biobased Aldehydes to Monoalcohols Using Bimetallic Catalysts

机译：使用双金属催化剂将生物醛与一元醇的氢化氢化

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摘要

A series of monometallic and bimetallic metal catalysts (Pd, Cu, Fe, PdCu, PdFe) supported on ZrO2 (6-8 nm) were synthesized and tested for the hydrogenation of bio-oil model compounds (furfural, vanillin, glucose) under 50 bar H-2 at 100 degrees C. The catalysts were fully characterized and their properties related to their catalytic activity. The bimetallic PdFe and PdCu displayed enhanced catalytic performance compared to the monometallic catalysts for aldehyde hydrogenation (furfural, vanillin, glucose). For the best catalyst, 98% vanillin alcohol (VA) and 65.5% furfuryl alcohol (FA) conversion was obtained for 80 min batch-time. PdFe showed high selectivity toward sorbitol (74%) from glucose, though at low conversion (20%). Overall, we have demonstrated that bimetallic Fe- and Cu-based catalysts promoted by Pd show significantly better performance for the partial hydrogenation of bio-oil model compounds than the corresponding monometallic ones. The better performance of the Pd-doped Fe/Cu catalysts is linked to the presence of smaller and better dispersed Pd nanoparticles (STEM) and their lower acidity (similar to 90 mu mol/g cat) than corresponding monometallic ones (similar to 167 mu mol/g cat).
机译：合成ZrO2（6-8nm）支持的一系列单金属和双金属金属催化剂（Pd，Cu，Fe，Pdcu，PDFE），并测试50岁以下生物油模型化合物（糠醛，香草素，葡萄糖）的氢化棒H-2在100摄氏度下。催化剂的完全表征及其与其催化活性有关的性质。与醛氢化的单金属催化剂（糠醛，香草素，葡萄糖）相比，双金属PDFE和PDCU显示出增强的催化性能。对于最佳催化剂，获得98％香草醇（VA）和65.5％糠醇（FA）转化率为80分钟间歇时间。 PDFE在葡萄糖中对山梨糖醇（74％）的选择性高，但在低转化率（20％）。总体而言，我们已经证明，PD促进的双金属配料和Cu基催化剂显示出比相应的单金属型化合物的部分氢化的显着更好的性能。 PD掺杂的Fe / Cu催化剂的更好性能与较小和更好的分散的Pd纳米颗粒（茎）的存在与它们的低酸度（类似于90μmmol/ g猫）的存在，而不是相应的单金属材料（类似于167亩mol / g cat）。

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  • 作者

    Bagnato Giuseppe; Signoretto Michela; Pizzolitto Cristina; Menegazzo Federica; Xi Xiaoying; ten Brink Gert H.; Kooi Bart J.; Heeres Hero Jan; Sanna Aimaro;

  • 作者单位

    Heriot Watt Univ Sch Engn &

    Phys Sci Inst Mech Proc &

    Energy Engn Adv Biofuels Lab Edinburgh EH14 4AS Midlothian Scotland;

    Ca Foscari Univ Venice Dept Mol Sci &

    Nanosyst CATMAT Lab Via Torino 155 I-30172 Venice Italy;

    Ca Foscari Univ Venice Dept Mol Sci &

    Nanosyst CATMAT Lab Via Torino 155 I-30172 Venice Italy;

    Ca Foscari Univ Venice Dept Mol Sci &

    Nanosyst CATMAT Lab Via Torino 155 I-30172 Venice Italy;

    Univ Groningen Engn &

    Technol Inst Groningen Dept Chem Engn NL-9747 AG Groningen Netherlands;

    Univ Groningen Engn &

    Technol Inst Groningen Dept Chem Engn NL-9747 AG Groningen Netherlands;

    Univ Groningen Engn &

    Technol Inst Groningen Dept Chem Engn NL-9747 AG Groningen Netherlands;

    Univ Groningen Engn &

    Technol Inst Groningen Dept Chem Engn NL-9747 AG Groningen Netherlands;

    Heriot Watt Univ Sch Engn &

    Phys Sci Inst Mech Proc &

    Energy Engn Adv Biofuels Lab Edinburgh EH14 4AS Midlothian Scotland;

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  • 正文语种 eng
  • 中图分类 化学工业;
  • 关键词

    Hydrogenation; Furfural; Vanillin; Glucose; Bimetallic catalysts;

    机译：氢化;糠醛;香草醛;葡萄糖;双金属催化剂;

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