期刊
JOURNAL OF CHEMICAL EDUCATION
卷 96, 期 12, 页码 3030-3037出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jchemed.9b00410
关键词
Second-Year Undergraduate; Laboratory Instruction; Interdisciplinary/Multidisciplinary; Hands-On Learning/Manipulatives; Aqueous Solution Chemistry; Carbohydrates; Catalysis; Thin Layer Chromatography; Water/Water Chemistry; Green Chemistry; Sustainability; Systems Thinking
资金
- U.S. Fulbright student program
- Fulbright Espana
- project HUGS [H2020-MSCA-ITN-EID-675325]
This laboratory experiment introduces students to an important reaction in biomass valorization and allows them to gain a practical understanding of green chemistry. Acid-catalyzed dehydration reactions of fructose to 5-hydroxymethylfurfural and thus humins were performed both with and without aqueous solvent, along with two different catalysts (Amberlyst-15 and alumina). Students were able to compare and analyze the effects of these different conditions using thin-layer chromatography, while grasping concepts of catalysis and circular economy. By observing the formation of humins under some of the reactions tested, the students could evidence systems thinking in humin valorization.
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