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Nastanek in uporaba dendritnih struktur
ID Božič, Benjamin (Author), ID Podgornik, Aleš (Mentor) More about this mentor... This link opens in a new window

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Abstract
Dendritne strukture so razvejane strukture, ki nastanejo pri procesu kristalizacije. Nastanek dendritne strukture je možen le kadar sistem ni v ravnotežnem stanju. Podhladitev, prenasičenost, anizotropija in površinska napetost so ključni faktorji pri nastajanju dendritnih struktur. Nastajanje dendritov v zlitinah se nekoliko razlikuje od nastajanja dendritov v čistih snoveh. Dendritne strukture se pogosto uporabljajo na področju katalize. V diplomski nalogi je opisana tudi uporaba dendritnih struktur pri redukciji 4-nitrofenola, elektrokatalizi vodikovega peroksida, oksidaciji glukoze in oksidaciji etanola. S dendritnimi strukturami lahko izboljšamo rezultate, ki jih dobimo pri površinsko ojačani ramanski spektrometriji in površinsko ojačani fluorescenci. Dendritne strukture lahko uporabimo tudi pri tvorjenju superhidrohobnih površin.

Language:Slovenian
Keywords:dendritne strukture, anizotropija, podhladitev, kataliza
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FKKT - Faculty of Chemistry and Chemical Technology
Year:2019
PID:20.500.12556/RUL-109684 This link opens in a new window
COBISS.SI-ID:1538336195 This link opens in a new window
Publication date in RUL:06.09.2019
Views:2022
Downloads:190
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Secondary language

Language:English
Title:Formation and applications of dendritic structures
Abstract:
Dendritic structures are branched out structures, which are formed during the process of crystallization. The formation of dendritic structure is only possible, when a system is not in a state of equilibrium. Undercooling, oversaturation, anisotropy and surface tension are key parameters in formation of dendritic structures. Formation of dendrites in alloys is somewhat different from formation of dendrites in pure substances. Dendritic structures are often used in catalysis. The thesis also describes the application of dendritic structures in reduction of 4-nitrophenol, electrocatalysis of hydrogen peroxide, oxidation of glucose and oxidation of ethanol. Results collected from surface enhanced Raman spectrometry and surface enhanced fluorescence can be improved with dendritic structures. Dendritic structures can also be used in formation of superhydrophobic surfaces.

Keywords:dendritic structures, anisotropy, undercooling, catalysis

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