水介质中Pd催化剂催化生物质衍生的5-羟甲基糠醛加氢反应

IF 0.7 Q4 CHEMISTRY, MULTIDISCIPLINARY Orbital: The Electronic Journal of Chemistry Pub Date : 2022-07-03 DOI:10.17807/orbital.v14i2.15596

Wesley Romário Da Silva, J. M. Rosolen, P. Donate

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引用次数: 1

摘要

在不同形态和疏水度的碳质材料上，以钯纳米粒子（Pd）为催化剂，在水介质中氢化生物质衍生的5-羟甲基糠醛（HMF）。通过将碳质材料浸渍到Pd0微乳液中来制备Pd催化剂。催化剂载体影响催化HMF加氢。通过使用微米活性碳（AC）与杯堆叠碳纳米管（CSCNTs）和钯相结合，我们获得了一种称为Pd/CCNT-AC的微/纳米结构材料，其性能优于其他含有类似钯负载量的碳质材料。Pd/CCNT-AC在C=O双键上更选择性地催化HMF氢化，对2，5-二（羟甲基）呋喃（BHMF）的选择性在85%至99%之间。我们还研究了温度、氢气压力和反应时间如何影响HMF加氢。

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Hydrogenation of Biomass-derived 5-hydroxymethylfurfural (HMF) over Pd Catalysts in Aqueous Medium

We hydrogenated biomass-derived 5-hydroxymethylfurfural (HMF) in aqueous medium in a reaction catalyzed by palladium nanoparticles (Pd) on carbonaceous materials with different morphology and hydrophobic degree. The Pd catalysts were prepared by dipping the carbonaceous material into a Pd0 micro-emulsion. The catalyst support affected catalytic HMF hydrogenation. By using micrometric active carbon (AC) combined with cup-stacked carbon nanotubes (CSCNTs) and Pd, we obtained a micro/nanostructured material designated Pd/CSCNT-AC, which performed better than the other carbonaceous materials containing similar Pd loading. Pd/CSCNT-AC catalyzed HMF hydrogenation at the C=O double bond more selectively, giving between 85% and 99% selectivity toward 2,5-bis(hydroxymethyl)furan (BHMF). We also investigated how temperature, hydrogen pressure, and reaction time affected HMF hydrogenation.

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来源期刊

Orbital: The Electronic Journal of Chemistry CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

1.10

自引率

0.00%

发文量

审稿时长

10 weeks

期刊介绍： Orbital: The Electronic Journal of Chemistry is a quarterly scientific journal published by the Institute of Chemistry of the Universidade Federal de Mato Grosso do Sul, Brazil. Original contributions (in English) are welcome, which focus on all areas of Chemistry and their interfaces with Pharmacy, Biology, and Physics. Neither authors nor readers have to pay fees. The journal has an editorial team of scientists drawn from regions throughout Brazil and world, ensuring high standards for the texts published. The following categories are available for contributions: 1. Full papers 2. Reviews 3. Papers on Education 4. History of Chemistry 5. Short communications 6. Technical notes 7. Letters to the Editor The Orbital journal also publishes a number of special issues in addition to the regular ones. The central objectives of Orbital are threefold: (i) to provide the general scientific community (at regional, Brazilian, and worldwide levels) with a formal channel for the communication and dissemination of the Chemistry-related literature output by publishing original papers based on solid research and by reporting contributions which further knowledge in the field; (ii) to provide the community with open, free access to the full content of the journal, and (iii) to constitute a valuable channel for the dissemination of Chemistry-related investigations.