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Uporaba dicianamidnih anionov za spreminjanje selektivnosti paladijeve elektrode pri elektrokemijski redukciji furfurala
ID Markežič, Martin (Author), ID Gaberšček, Miran (Mentor) More about this mentor... This link opens in a new window

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Abstract
Furfural je biomaterial, ki se pridobiva s predelavo biomasnih ostankov kmetijske industrije. Danes ta molekula pridobiva na pomenu zaradi prizadevanj za zamenjavo fosilnih goriv z obnovljivimi viri energije, saj lahko z redukcijo služi kot vir za biogoriva in različne intermediate v kemijski industriji. Pri elektrokemijski redukciji furfurala so glavni produkti furfuril alkohol, 2-metilfuran in hidrofuroin, ki v kislem mediju nastaja v zanemarljivih količinah. Poleg elektrokemijske redukcije furfurala je glavna stranska reakcija proizvodnja vodika iz vode, kar je moteč proces, ki ga je potrebno minimizirati. V ta namen sem elektrodo modificiral z metilpropilimidazolijevim dicianamidom, ki v heterogeni katalizi kaže povečano selektivnost v smeri redukcije organskih substratov. Z uporabo HPLC sem analiziral količine nastalega furfuril alkohola pred in po uporabi dicianamidnih anionov ter pokazal, kako se gostota električnega toka spremeni z modifikacijo elektrode. Prav tako sem preveril kako se sloj dicianamidov zadržuje na elektrodi.

Language:Slovenian
Keywords:Furfural, elektroredukcija, paladij, dicianamidni anioni
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FKKT - Faculty of Chemistry and Chemical Technology
Year:2025
PID:20.500.12556/RUL-167073 This link opens in a new window
COBISS.SI-ID:225441027 This link opens in a new window
Publication date in RUL:06.02.2025
Views:547
Downloads:1046
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Secondary language

Language:English
Title:Use of dicyanamide anions to modify the selectivity of the palladium electrode in the electrochemical reduction of furfural
Abstract:
Furfural is a biomaterial produced by processing biomass residues from the agricultural industry. Nowadays, this molecule is increasingly used due to the trend to replace fossil fuels with renewable energy sources. Through reduction, it can serve as a source of biofuels and various intermediates in the chemical industry. In the electrochemical reduction of furfural, the main products are furfuryl alcohol, 2-methylfuran and hydrofuroin, which is formed in negligible amounts in acidic media. Apart from the electrochemical reduction of furfural, the most important side reaction is the generation of hydrogen from water, an undesirable process that must be minimized. To this end, I modified the electrode with methylpropylimidazolium dicyanamide, which exhibits increased selectivity in the reduction of organic substrates in heterogeneous catalysis. Using HPLC, I analyzed the amounts of furfuryl alcohol formed before and after the application of the dicyanamide anions and how the electrical current density changes with the modification of the electrode. I also checked how the dicyanamide layer on the electrode is retained.

Keywords:Furfural, electroreduction, palladium, dicyanamide anions

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